Crop Lenses on Full-Frame Cameras (Canon, Nikon, Sony & Pentax)

[@TonyAndChelsea]

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[@oguzbenice7423]

Dear Tony and Chelsea, Would you advise to take photos with the Sony 18-105 on the Sony A7Rii body?

[@HeArKG]

Hi Tony, nice video, thanks. An aps-c lens + 1.4x teleconverter will almost fill a full frame sensor. But still some lenses will give a slight vignetting. 2x teleconverter will definetely cover the whole sensor. But you may loose autofocus of some lenses.

[@GirijeshKN]

@@HeArKG i need details on this. has anyone tested that

[@GBftw]

I think the D810s 1.2x crop mode is worth mentioning. 25mpix with 6fps. pretty much no crop required on apsc lenses and you waste less image circle than with an apsc camera. For sports and wildlife you also get to see more around your subject which is handy. I have used it when atached to my scope.

[@Claire18Hi]

Barnabas Mackay does the d610 do that?

[@dmacrolens]

@@Claire18Hi No

[@winfel]

You can put Sigma and Tamron APSC lenses on Canon full frame bodys without problem. You cannot do that with Canon EF-S lenses because they are built differently. It reaches more into the body. If you would connect it to a full frame body, the bigger mirror of the full frame camera would collide with the back of the lens, escpecially when zoomed out so. That allows them to make those lenses get a little closer to the sensor thus resulting in smaller camera-lens-combinations.

[@entertainmentworld5238]

Felix Winkelnkemper can i use (tamron 70_200mm f2.8 non vc) on my 6d full frame camera

[@mike969696]

In many/most cases removal of a rubber bung allows EF-S lenses to mount Canon full-frame bodies. And extension tubes allow it in call cases...obviously with the loss of infinity focus.

[@JPC009]

Thanks for covering Pentax so often lately, Tony. :)

[@destinygodley]

My nifty 50 fits my 6d Mark II as does my Sigma 18- sigma works on image stabilization mode... with a lil quality blow

[@aaronjonellhall1937]

The Sigma 18-35mm does fit EF mounts. I used it on my 5D Mark III and 6D

[@aaronjonellhall1937]

+Mark Harris he probably tried to put the Nikon mount on the canon like I did. Once I got the Canon mount, it worked from 28-35 mm. pics look beautiful though

[@markharris5771]

I was going to post the same, and if you put an extension tube on you can put any asp-c lens on. Found that out when I put my 5DII in my bag instead of 7DmkII

[@tolufunso]

Is the quality decreased in video? I was just about to buy this sigma lens (18-35 f 1.8) and found out it might not be the best for my Cannon Mark 3

[@thomaswindfeld728]

Hi Buddy. I have a Sigma 8-16mm, Sony mount and a 5D mark 3. Do you have any idea if it could work?. I would need some addaptor tho. :-)

[@okaro6595]

Only Canon uses the EF-S mount. The idea is to allow the lens to go deeper in the body. As Sigma etc. design their lenses to work with also Nikon, they cannot make the lens go so deep anyway.

[@xxkichaxx636]

The thing with Pentax is that a lot of their so called DA aps c lenses (mainly primes) are actually fully cover full frame sensor, like DA 55 f1.4*, DA 200 f2.8*, or DA 300 f4*. As far as I remember even DA 50 f1.8, which costs 90£. There are a lot of info about that, just Google.

[@davidwarren7279]

So why do they market them as APS-C lenses?

[@wildfisher]

Another excellent, informative and pleasantly presented video. None of the destructive, negative nonsense we sometimes read elsewhere posted by individuals whose lives appear to revolve around lurking in the dark with a speedlight ready to pounce and attack, yet seem have little positive to say themselves. Keep up the good work!

[@deeerinheadlights]

Me (an art student) listening to him explain the math formulas for the cameras: 👁👄👁

[@prufesuroak]

The Nikon 35 1.8G for DX works well on Full Frame from 1.8-2.8 or f/4. I may be wrong about the f/4. But 1.8-2.8 for sure. Also in the menus you canturn off the auto crop. Not sure if its the same on the modern cameras but when I did it on a D700 you could turn it off.

[@GirijeshKN]

what if i add and extender to convert apsc lens to full frame

[@johnmcclanahan2272]

As for Canon, from what I have read, some APS-C lenses may have the rear element extending further into the camera body. Due to the smaller reflex mirror of APS-C bodies, this isn't a problem. There is a risk of the mirror in a FF body striking the rear of the APS-C lens, so Canon prevents the problem by not allowing crop lens on full frame bodies.

[@smokey267]

Tony, Sigma Art APSC lenses fit canon full frame cameras so you can do exactly what you're suggesting with the 1DX mark II

[@TonyAndChelsea]

+smokey267 oh that's awesome! I only tested Canon lenses...

[@ShadowPony064]

I have an EX 17-50 f/2.8 and that also uses a regular EF mount, have put it on a 5D III with no issues. I've heard of other users with Tokina's f/2.8 UWA lenses using them on FF too. I think most 3rd party lenses for Canon crop just use the regular EF mount and not EF-S.

[@dalibormrkic7808]

It is lens mount not camera mount that is different. Sigma, Tamron and Tokina use EF mount on all of their lenses

[@BrianIrwin]

yeah I used the Tokina 11-16 f2.8 on my 5d3, I get some really weird Vignetting, it sort of looks like a moth at 11, but when I come back to 16 it hits the entire sensor.

[@smaakjeks]

@ Brian The moth shape will be due to the lens hood.

[@philsaunter]

As far as I know only Canon uses the EF-S mount. All third party manufactures use the standard EF Mount.

[@texmex9721]

Absolutely.

[@spangst]

Excellent video but I can hear the trolls making rebuttal comments and videos already. Some manufacturers seem to listen to you so you should start a campaign to have the engineers at Sigma design an 18-35mm F1.8 for use on FF bodies. I would sell a body part I rarely use for that!

[@tommartin5956]

The total number of pixels is due to the sensor, if the lens "fills the frame," then you're still getting the full complement provided by the sensor. It's only if you (or your camera) crop the image that you get the reduction in pixels.

[@Swapnil123ist]

At 11:55, you have mentioned only A7Rii's video mode as 8 mp and half the noise with APS-c lenses, what would be your recommendation on A7ii or A7iii (as the new arrival in town) for videos to be used?

[@davidakb]

Hi i would like to know which adaptor i could use together with A7ii and sigma 18-35 with Nikon aps-c mount. Thx

[@Cbabyperk]

Best photography channel hands down

[@johnsnook6084]

You can fit the sigma 18-35mm on a full frame canon, as it has an EF mount, despite being a APS-C lens.. it's misleading because it has a white dot on the lens, but it lines up with the red dot on the camera mount when fitting. It doesn't protrude like an EF-S mount does, it's the same mount as EF lenses. Sigma knew what they were doing when picking the mount, far more versatile.

[@shashwatpunjabitech9227]

John Snook So if I put a sigma 18-35 of an 80D will it be fine?

[@johnsnook6084]

80D is a cropped sensor? i.e. APS-C which is what the Sigma 18-35 is designed for. So yes.

[@bstraw53]

I'd be interested in this same video (Or someones input as a comment) but aimed at DX on the Nikon D850 since the 850 has such a high MP count. I'm looking to go from 5500 to the 850 and made the mistake of buying a full range of DX lenses.

[@blueckaym]

@ 6:30 the upper zoom focal limit after applying a x1.5 crop-factor should be at least 52mm (and 56mm on Canon crop cameras) , not 40mm! ;) Also on Nikon D810 the focal range (and aperture) should not be multiplied by crop-factor it'll be a 18-35/1.8 lens (since optics are - ie focal length & aperture, which is only related to focal length), but with a black out vignetting, because you have a sensor larger than the projection the lens will give you.

[@Be-Es---___]

Nice, but in your "Megapixels: Do you need more?" video you just said that "10Mpx is enough to make 8x10" print... I think this needs an update?

[@Iaintclonitwasmybro]

Not sure if someone said it earlier: in the Nikon world, the 35mm 1.8G DX is a top quality/price lens for APS-C bodies and covers very well the full frame sensors too! It keeps up extremely well compared to the 35mm ED for FX bodys, in fact it is lighter and focuses faster while it's price is a third. Only issue is strong vignetting at f1.8, but still a vignetting that can be corrected in postpo.

[@Kindersama]

Errr... @7:40 Isn't 35x1.5=52.5 and not 40? or did I miss something? :)

[@TonyAndChelsea]

+Kindersama yeah, it's a typo. I added an annotation to correct it.

[@Kindersama]

Related question: Does a speedbooster helps (or works) with a crop lens on a crop body? Does this Sigma really become a 18-35/1.8?

[@sanjeevluintel1812]

Your explanation is very clear on just about everything you talk. It's been a great help finding such a informative and authentic photography channel here in youtube. Thank you for making easy to learn about photography. Photography really is so vast and intense. Yet your presentation is very simple and understandable. I am just a beginner and I am really learning a lot from you. Keep on sharing your awesome experience. Much appreciated. And once again, thank you.

[@mr_nemo24]

Hi! Very interesting! If you get the new Blackmagic 6K would be awesome to take a look. With the EF mount I think is very interesting. I have a 77D and 3 lenses of EF-S, they wont fit there either, right? :( I was thinking in make that jump someday, but I am quite upset that the lenses won´t fit. But, I have a EF lens that will at least.

[@omeshsingh8592]

For Canon EF-S you can use a short extension tube to add separation between mirror and lens, which will prevent physical damage. With an extension tube you will lose infinity focus but if you're using fast glass then you tend to use it close up for background blur so infinity focus is not critical. If you want to use narrow apertures then there are plenty of zooms available.

[@matthewsilverman2851]

correct me if im wrong here, but in my experience putting a crop lens on an fx body does not have the same effect on the aperture as a tele convertor does as stated at 7:16

[@okaro6595]

The effect comes form the fact that you need to use lower ISO to prevent the noise. The total anoint of the light in the final picture areas is about same. A tele converter takes the center of the image and spreads it to the whole sensor. In cropping one does the spreading while one view the image.

[@matthewsilverman2851]

Okaro X that is not at all what I was referring to

[@leehaze1]

I use my Pentax DA* 300mm f/4 with my Pentax K-1 in full frame mode. I get some pretty stunning results with no vignetting. With the benefit of the Pentax in camera IS, makes this an even more stellar combo.

[@notombo9459]

The Sigma 18-35 with the canon Mount ist designed for APSC Cameras, thats right, but The actual Mount is more shaped like the EF not EF-s Mount, so it works on Canon FullFrame Bodys.

[@johncampbell335]

Once again, you managed to take a complex concept and made it easy to digest. Thanks.

[@brentpaterson6635]

I have a question regarding the new EOS R and using it for wildlife. I know the best choice for wildlife would be to use a 7DM2 or an APS-C body to get that extra 1.6x, but I only shoot wildlife occasionally so I can’t justify getting another body just yet. My question is​ if I am using the EOS R and a canon 100-400mm f4.5-5.6, is it worthwhile to shoot with the built-in 1.6x crop mode that the EOS R has, or leave it in full frame mode and then crop in post? After watching your video on APS-C lenses on a full frame camera I know that if I shoot in the 1.6x mode it effectively gives me an 11mp image at 160-640mm f4.5-5.6. Comparatively, if I just kept it in full frame mode but stacked it with a 1.4x teleconverter it would be a 30mp image at 140-560 f6.3-8 and that’s a fair reduction of light. What are your thoughts on the best way to use the EOS R for a temporary wildlife body? Just curious, but if you used a 1.4x tc, on the 100-400mm and then used the EOS R 1.6x crop you’d end up with an 11mp 224-896mm f6.3-8, how unusable would these images be? Thanks for the help!

[@sidbrun_]

2:33 where can I buy prints?

[@giles9017]

Hey Tony, just 2 question which isn't relevant to this video but anyway first question is what can I take in my camera bag as hand luggage on a aeroplane for my holiday trip, I have the basic centrals batteries chargers flash filters ect and second question is any tips on keeping my camera cool in the sun and in camera bag, I was thinking of using a cooler bag maybe to keep thing out of the heat, would be grate for some feed back from a pro :=) all the best from us in the UK

[@TechCenter1000]

I've personally used an 18-55 with my D810 and compared the quality vs that lens on my D3200 since it's my only wide lens and the D810 images still looked sharper than the D3200. I don't know if that may be because the D3200 has an AA filter and if the D3300 which doesn't would make much of a difference. But even putting full frame lenses on DX bodies with the extra crop factor of DX, the full frame body results even after cropped to the same focal length look better.

[@TheKg77]

yep same result with my tests too,d810 vs d5200. the 18-55 kit lens seems to work fine from 25mm and looks better.

[@iSOBigD]

Well the full frame camera has no AA filter, a much higher resolution (so you're cropping to about the same MP as the full d3200 image), slightly better image quality (depending on the ISO) plus all the pro features which could affect IQ like faster focusing. If you compared a 24MP FF camera cropped to say 12MP with a 24MP DX camera, you should see a better IQ from the DX camera. (Assuming you're not shooting at high ISO)

[@julianmclean3869]

Better late than never Tony !!!; yes its 2024 and I have just purchased a Nikon D780 Body only; I also have an 18-55mm AFP VR lens on it (which it recognised regards the VR On / Off settings); I experimented with the Dx Crop / FX on, please correct me if I am wrong!!!; with the FX on, there is a slightly "weird" vignetting at 18mm (not round however a square ish, round corner effect!) ; zoom to around 24mm and its all gone!; the view finder also confirms the image isn't being cropped, does this mean its shooting with the max Mega Pixels? (I am assuming it is as the picture quality is superb); regardless, even with the DX crop the image from the D780 is pretty damn good ! Cheers

[@davefk]

4:27 use the Canon EF12 II adaptor... Works fine but no infinity focus.

[@martinaee]

Tony you can do that "shading out the edges thing" on the D800 and D810 too. It's some weird setting in the menus that doesn't sound like that's what it would do. I forgot what it is off the top of my head on my D800.

[@keithspillett]

Fascinating video. I always enjoy your 'nerdy' offerings, and I particularly find your comments on noise level increase when using a crop lens on a full frame body very interesting. The whole thing can be turned on its head, however, and a similar effective noise increase will occur when cropping ANY image on ANY camera, whether full or crop frame, when blown back to full size for printing/distribution. Also, I know a lot of people advocate shooting 4K video so they can crop it for 1080i/p use, but that also involves noise implications in my experience. However, it's all a bit academic, since the noise shaping characteristics of modern workflows generally produce cleaner images than celluloid ever did, especially if film was push processed.

[@RobertBratuOfficial]

Guess what? Sigma, Tamron, Tokina, Samyang APS-C lenses, all have Full Frame mounts and CAN be mounted on a Full Frame camera. I'm surprised you said they won't fit. I CAN mount my Sigma 18-35mm on my Canon 6d, same way I can with my Tokina 11-16mm and without their lens hoods I can use them on their tele ends without cropping.

[@TonyAndChelsea]

Yes, good point, third-party lenses can be fitted on Canon--I only tested Canon lenses.

[@texmex9721]

Tony, 3rd party crop lenses like sigmas 18-35mm work great on Canon FF bodies, and Canon APS-H bodies. CInema cameras like the C100 have a super 35 sensor (about the same as APS H and they will take any Canon or 3 part crop lens with a CANON EF or EFS mount.

[@maxdmachy]

APS-C using the the FULL FRAME can be fun. Have other people experimented? I would love to exchange ideas. Especially how to get around the automatic crop on Nikon full frame (ff) bodies! Just treated myself to the 7artisan f 1.2 35mm as a kind of fun lens. Mounted on a Sony A7 it produces pleasant, strong vignetting - keep in mind, the first Kodak Brownies had circular images! Distortion is well controlled, even on the ff sensor. For instagram and other mostly square uses you get pleasant results. With a cheap, extra-luminous solid leight-weight toy. I personally love it

[@JacquesvanBremen]

I put my Sony 50mm A mount APS-C on my A7. If I open the aperture I get just slightly darker edges. But I tried frame with darker object in the corners. As long as all corners are covered you don't see the vignetting anymore.

[@raztechstudios]

I have a question about full frame lenses on a crop sensor. If I have a 2.8 lens on my crop sensor does that mean that I am not letting in as much light in terms of being able to shoot in low light. Or and I not just getting the depth of field like a 2.8. I know we usually multiply the 2.8 X 1.6 to get a true value of what my min aperture is which would bring me around 4.__ something but is that 2.8 lens letting in the Sam light on crop vs full I know full frame capture a bit more light then crop frame but I'm just referring to the actual 2.8 lens. I know some people say yeah you spend a good amount of money on a 2.8 lense but your using it on a crop sensor so you not really getting what you paid for. But I guess my question would be. What am I exactly not getting. Is if the low light performance of shooting at 2.8 or am I not just getting the dept of field and true background blur of the 2.8 Hope it makes sense. Not sure if I've explained it right.

[@okaro6595]

If you multiply by the 1.6 you get the 35 mm equivalence but does it tell you anything relating to the noise? Do you have years of experience in evaluating FF images? F/2.8 can be used even on low light. Sure you may need to use higher ISO than with f/2.0. You have bought lens costing maybe $300 and worry that you did not get what you paid. Just ask Tony what he has put in his equipment. Sure you can go to FF, With a fast zoom it is $3000-4000 to enter.

[@bodoheiss8225]

Tony Northrup: you are recommending to use the Sony 18-105 as a video lense. This lense zooms via fly to wire and is supposed to have difficulties when pulling focus consistently (at least at firmware revision blow V.03). Any comments ?

[@TonyAndChelsea]

That's all true, those things just aren't part of how we video. AF works well on it (fast & precise) and we don't often pull focus.

[@bodoheiss8225]

Tx for the reply. According to this source (www.dvinfo.net/forum/sony-xdcam-pxw-fs7-fs5/531653-18-105-software-fix.html) the firmware upgrade to V.03 seems to have improved the pulling focus issue. You guys also tested the Sony FE PZ 28-135mm f/4 G which is good but also big in size/weight and price. Any more creative ideas on a small, fast, zoom cine lense for the A7Rii?

[@sanketsarkar]

So going by this - A 70-200 lens off from a full frame would be 189mm - 540mm on a CX type sensor on a Nikon 1? Then I have one more doubt - These days we get bolt-on wide angle lenses. I have seen ones that are .35x so does that mean if I use it on my 70-200 (189-540) then 189mm x 0.35 and 540 x 0.35 ? that is 66mm - 189mm? Is that true?

[@okaro6595]

I would avoid those add-ons. Use proper lenses designed for the system.

[@HristoAtanasov]

I have a question: Isn't it better to use a full frame lens in crop mode, than crop lens in the same body? All benefits of shooting video in aps-c/super35 mode, explained here, will be the same, but you will use a part of the image that is closer to the center of the lens, so in theory you get a sharper image and less vignetting. Or I am wrong about this?

[@lorenday2372]

I have a Sony a7iii with a Full Frame 35mm 1.8 OSS lens. However, It constantly looks like there is a black circle bordering all my footage. It works fine if its in APS-C/Super 35mm mode. BUt, how do I get it to look normal all the time?

[@ChristopheCousinOSS117]

Definitely one of the best exposé about crop, sensor etc....you deserve to,teach in the best schools...congrats from France !

[@paulchoate1]

Dumb question (and hypothetical)...IF I could mount my Sigma 35mm f1.8 to my 6d woukd it still be a 1.8 aperture? And an unrelated follow up question: since Sigma makes that lens specifically for a crop-sensor body is the aperture of that lens on a crop-body actually 1.8 OR (like the focal length) does it need to be multiplied by 1.6 (or 1.5 for Nikon) to get the actual aperture?

[@okaro6595]

You will get dark edges and you need to crop. The actual equivalence depends on how much you crop. EOS 6D does not offer any internal crop to my knowledge so it is for you to decide in processing the images.

[@BlutengelNoUta]

The Tamron 60mm F2 macro APS-C lens actually fills the entire frame on an FF-camera when focusing close and 90% of the frame at infinity. Also it's extremely sharp on FF because it's made to be sharp on the generally more demanding APS-C format and it's even sharp edge to edge, all the way out to where the vignetting starts. This makes it a fantastic standard bright F2 walk-around prime which can do 1:1 macro. No such FF lens exists. I use it often with an adapter on my A7. :)

[@topgunm]

Tony, please stop telling people that the F number (how fast the lens is) magically changes when putting the lens on a DX body. It's just as good as if it was on a FX body.. the DoF might be the equivalent of x1.5 if you FRAME the shot the same (step back with the DX camera), but the same lens with the same F-stop at the same distance will give you an identical DoF, but it would be a CROP of the FX equivalent camera. Distance in feet are examples: SAME DISTANCE: FF: a 85MM F1,4 from 10 feet back will frame the head of your model. Crop: a 85mm F1,4 from 10 feet back will frame the eye and nose and side of the head of your model. DOF will remain the same behind the models head. The exposure will be 100% the same (same shutter, same F-stop). SAME FRAMING: FF: a 85MM F1,4 from 10 feet back will frame the head of your model. Crop:a 85MM F1,4 from 15 feet back will frame the head of your model. Since you are now at a GREATER distance on the SAME focal length (85mm) you will LOOSE some of the DoF. You need to tell people this. All your previous info about crop/ff/f-stop/collects more light etc etc never made any sense to me and now I know why, because it's incorrect.

[@TonyAndChelsea]

Yes, of course you have to frame the shot the same, otherwise you're taking a completely different picture. sdp.io/crop

[@topgunm]

An F-stop is way more than DoF. It tells us how fast the lens is (how much light it can gather and the AF speeds). Bokeh is also important, but that's more of a bi-product of a lower F-stops. You should just specify it better in your videos *F2.7. *Bokeh effect conversion or something along those lines.

[@TonyAndChelsea]

I specifically said that crop factor does not change your camera settings in this video. I had a whole slide dedicated just to that. Crop factor definitely changes the total light gathered by the lens, but not the light/square inch.

[@okaro6595]

DoF will not be same in the above. The crop image has LESS DoF. If you shoot 85 mm at 10 ft with f/1.4 on FF the DoF behind the focal plane is 0.18 ft. If you use crop, it is only 0.11 ft (Canon) or 0.12 ft (Nikon). If you move to 15 ft then with the Nikon Crop your DoF will be 0.27 ft behind the focal plane.You gain DoF, you do not lose it. Note that if you instead f 56 mm then the DoF will be 0.28 ft behind i.e. it is about same whether you move back or use a shorter lens as far as DoF is concerned. Why does crop image have less DoF on same focal length? Because you magnify it more and that brings the errors more visible.

[@MeAMuse]

Tony, I had a Tokina 11-16 F2.8 for Canon. I was able to put it on a 5D Mk3. I am guessing that whether the lens fits on the full frame camera depends on the lens mount they use.

[@MeAMuse]

Yeah, I guess that was my point. Tony made it sound a little like all lenses for crop sensor Canons can't fit. I was interested whether different manufacturers did different things. I have never tried with a Sigma, or Tamron.

[@SzilviaVirag]

Interesting information. Thanks for that. But what about the bit where you mentioned that if you zoom in with lenses made for an APSC it's not really an issue? Like does that mean that if I use my Tokina 11-20mm f2.8 (made for APSC but technically has an EF mount) on a full frame, all your loss of megapixels calculations apply at 11mm, but not so much if it's zoomed in to 20mm?

[@kevindiaz3459]

I was wondering if you had done a video like this. I saw your video on full frame lenses on crop cameras, and wondered what your thoughts were on the opposite of that. Thanks for the video Tony.

[@ascentaerialimaging6497]

Hi Tony you mentioned your using the Sony 18-105 f4 apsc lens for most of your filming. My question is if you apply the rule of thumb of multiplying the aperture by the crop factor and not just the focal length ,so f4 x 1.5 to get the true f number of that lens when using crop mode (apsc/super 35 mm mode )of the Sony A series such as the A7 iii. This is starting to get pretty slow for an all round lens surely? Or am i missing something in terms of how the A7 super 35 mm mode works? thanks

[@TonyAndChelsea]

The a7R III and all earlier cameras have better video quality in Super 35 mode. The a7 III (which didn't exist when we made this) has better video quality in FF mode.

[@ascentaerialimaging6497]

Thanks for the reply ,makes sense to me.

[@jimwhatley832]

Just for information Tony in your freebie book in the sections regarding the Nikon D800 and D810 you refer to the 1.5 crop mode as producing 24Mp.

[@omarocastl]

Perhaps a little bit off-topic, but. Is there a DX version of the nikon 50mm f/1.8? I'm interested in buying a 50mm but I don't know if I should consider the crop factor since my camera has a crop sensor.

[@randomgeocacher]

EF APS-C lenses generally work on EF bodies. Tested this with Tamron APS-C lenses a couple of years back. Only Canon is known to use EF-S (slightly other lens mount and back element is allowed to stick out).

[@jonneymendoza]

Hi Tony and Chelsea. Quick question that's off topic. When you went to machu pitchu. Did u take your tripod with you or is it not allowed at the site? I am going to visit there in a few days time

[@TonyAndChelsea]

They're not allowed, technically, but most people seem to get away with it. I brought only a small tripod that I could keep inside my bag, for making timelapses.

[@time589]

I really like most of your explanations appreciate your shared experience. Thank you. I am a math guy. You mean well but the dumbing down of crop totally confuses me. I do night club comedy photography with miserable lighting and no flash allowed. I am using a D850 and AF-S NIKKOR 70-200mm f/2.8E FL ED VR. (love the rig) Sometimes I'd like to go 300mm for a tight head shot so I flip to DX 24x16 mode. My question is what am I giving up? A DX crop on the D850 has almost the same image pixel size as FX on a D5.

[@Odank]

I just don't get how you get "noise characteristics" from an APS-C mounted lens. Optics don't produce noise...

[@TonyAndChelsea]

I explain this in this video, but also check sdp.io/crop

[@jasond1500]

I think he means if you're using a FF lens you're going to use the whole sensor to compose the shot, with a crop lens you have to keep the same composition to the center so when you make them the same size after the one will have more noise since it's being zoomed in more? Although real world I doubt 99% of people would be able to tell even if the ff image was right next to it or even care.

[@Odank]

Jason Disbrow But the only way to get the same composition would be to change lenses or move back on the aps-c, or move forward with the crop lens on FF. No noise involved. Saying that a crop lens in a FF now has a noisier result b/c you have to crop in digitally to get an APS-C type of composition is like saying I will have to change out my turbo charged engine in my Mustang so it can perform closer to my Nissan.

[@richardhaw9757]

your picture gets pixelated and lose fidelity but you dont get 2.X times noise. i used to resize my D90 pictures to really large sizes for billboard prints and the noise didn't multiply with the "magnification" ratio. i did get plenty of blocky artefacts in which i use a software to clean those up before sending the pics to the large format printer to be processed and stripped.

[@TonyAndChelsea]

Check sdp.io/crop and sdp.io/density

[@redappletv222]

Hi Tony, is the blur in an APSC lens the same in both APSC and FF Body in Sony Cameras? Any formula?

[@umashankar9180]

SIR MY CAMERA IS NIKON 18-105 MM LENSES ON D90 LENSES , ATTACHED TO CANON 5D MARK II BODY WITH FOTODIOX LENS MOUNT ADAPTER NIKON TO CANON EOS IS ROUND BLACK CARCAL TO CAME HOW IT FIX THIS PROBLEM,

[@huanlx1605]

Thanks, but how about with sigma 18-35 f1.8 on nikon full frame

[@fowlintent]

Tony, I think the incompatibility of the Canon APS-C lenses on full frame cameras has more to do with the rear element /housing contacting the mirror than any difference in the mounting system.

[@C0reyBernard]

Is the 1.5x crop the super 35 feature? I had the A7Sii which didn't allow for super 35 mode at 4K but you could get around it with clear image zoom and zooming in till the vignetting is gone.(apparently it's the same result) I returned it and am getting the Sony A9 and I'm wondering if it's similar to the A7Rii or the A7Sii and do you end up with that same "half the noise ,better image quality" without the super 35 mode when using APS-C lenses.

[@mafdyashraf3773]

Tony I think there is a crop mode in all nikon full frame cameras which allow you to make a 1.5 crop. So this will allow to use crop lenses on nikon full frame bodies. Am I right?

[@TonyAndChelsea]

Yes

[@vrphotoatlanta]

been using my nikon D610 with my old lens Sigma 17-50mm f2.8 and the results are still great. i used to use it with my starter camera d3200. great video on making this understandable. thanks tony

[@uh2535]

Tony, you are wrong about more noise! there is just less resolution on cropped FF image, not more noise. even opposite - FF cameras have larger photosites and will have even slightly less noise.

[@TonyAndChelsea]

Check sdp.io/crop, sdp.io/density, and sdp.io/iso

[@uh2535]

+Tony & Chelsea Northrup OK, let's speak on example. You mentioned that some crop lenses at full zoom do fill the FF sensor with almost no vignetting, which is true. So how the "noise knows" and accordingly increases by 2.25 if you are gonna use just crop part of the image or whole FF image? And when the "noise makes this decision"? At PP in Lightroom? "O, Tony took just crop part of the image we are in, so let's destroy the image for him by increasing ourselves by multiplying ourselves by 2.25, so that he never ever take crop part of FF image!" :D Something like this? Or?

[@dmacrolens]

@@uh2535 lol

[@gur262]

I like that you show just how much sense it can make, even without the 1.5x crop. I do wonder if the sony a7series forces you into cropmode? and how about apsc A-mount lenses with the lea 4? oh and.... still waiting for that teleconverter +apsc lens= fullframe lens -experiment ;)

[@TonyAndChelsea]

All the non-Canon cameras automatically switch to crop mode, but you can change that to shoot full-frame. Canon cameras always shoot full frame, even if you manage to attach an APS-C lens.

[@gur262]

Tony & Chelsea Northrup thank you

[@fortheloveofmedicine4634]

I’m looking to upgrade from a crop sensor and wanting the Z5 worried about the 4K crop, wondering if I could use my DX for shooting real estate. Thanks for this video.

[@ThePoplord2010]

Hi Tony , i have a problem , i have a7 iii and i just bought Xpro & TT685s and both of them not working AF assist and also second certain ? why? and how its work ? and which flash can work AF assist on sony

[@mikezlayerlagrada6453]

Good day sir. im just a beginner in cameras . i have sony SLT-A65. but im a little bit confuse what lens will be compatible. it is given that A mount will fit, but can i use an E mount lens without using an adaptor?.can u give me suggestions what lens can i use . ? thank you and God Bless

[@ChaitanyaShukla2503]

The mount on Canon FF and crop bodies is the same, its just small ring around contacts that blocks crop lenses being mounted to Ff bodies. Look carefully at Canon EF and EF-S mounts and you will notice the difference around contacts.

[@deadmikehun]

If i put an 55-250 (which i beleive is an apsc lens) on a 7D, then i put a full frame 70-200 lens on a 7d, which lens will be longer? Is it going to be 55-250 vs 112-320 on a 7D, making the 70-200longer?

[@Amwm1]

Would you make videos about storage? NAS, RAIDS, comparisons, reliability, etc'..... thanks.

[@sirsam9965]

Hi Tony. I pretty sure you can mount the sigma 18-35 1.8 onto a canon full frame body. Check out Dustin Abott's channel who actually tested the sigma 50-100 1.8 on a Canon 6d...

[@felixd6001]

With a great deal of vignetting involved, unfortunately ... Daaarh !! Such a shame .. I have both the 18-35 and 50-100 Sigma lenses and I just switched to a FFrame camera but cannot use them .... -_-'

[@javierdealfonso8115]

Hey Tony, does a 35mm f1.8 designed for APS-C on an APS-C behave as a 50mm f1.8 FX on a FX in terms of bokeh? I understood the multiplication factor for aperture and focal length when using a FX lens on a DX body, but what if the lens has been specifically designed for that body? Does it still apply? In order to replicate an FX 50mm 1.8 on a DX body, should we go for 35mm f1.4? Thanks!

[@halfniak]

Javier de Alfonso it acts like a 50 1.8 (52mm I think), the only difference is that in order to get the same narrow depth of field you'd have to be a bit closer to the subject

[@javierdealfonso8115]

hi +halfniak, thanks for your reply. I ended up grasping the whole thing: 35mm f1.8 DX acts as a 50mm f1.8 FX, but for the same frame, as you say, you need to be closer with the 35mm DX. Longer physical focal length gives more background blur and compression, so the 35mm DX will give less than a 50mm FX for the same frame. That's why I was wondering whether that could be compensated for with more aperture on the DX lens. I am tempted to going for a sigma 50mm f1.4 (not ART) for my DX sensor anyways :D best bang for the buck in my opinion.

[@okaro6595]

Is 35/1.8 same as 50/1.8 ? No, the equivalence is 52 mm f/2.7. The crop factor is the property of the sensor, not the lens. On crop FF and crop lenses behave identically. Yes, 35 mm f/1.4 is pretty close (exact would be 33.3 mm f/1.2).

[@tony8445]

Would the increased distance of an extension tube make a difference in the size of the circle of light hitting the sensor?

[@taufiqrahman1191]

is there any converter or adapter to put aps-c lens on full frame canon body?

[@tracosta]

Tony, I have a APS-C Camera and I would like to buy a Full-frame one, all though I only have a 50mm FX lens. Should I buy First another full-frame lens or should I buy first the full-frame body?

[@okaro6595]

You can very well start with the 50 mm lens and then think what other lenses to get. It all depends on the needs. 50 mm is a normal lens. It is good for general shooting outside. Maybe a little tight inside or if you want to shoot buildings. In the early 80s cameras routinely were sold with 50 mm lenses.

[@mdm9096]

I am looking to buy semi pro camera, I shoot videos and stills and on a tight budget. I’m confused between D7500 & D750, it’s Dx vs FX I know... but which camera do you think I should prefer? On Internet it’s a par with each other, but 750 definitely carries an edge because of its full frame sensor. Is D7500 worth my money ? Considering I can buy lenses which costs my much lesser than fX lenses

[@SwanandRides]

Which Nikon Full frame lenses are cheaper ? I just have purchased d610 and I don't want to use my APSC lenses on it..

[@MrK67017]

Whenever I use my Sigma 50-150 F2.8 OS HMS on my D750 (10 megapixels ) the image quality seems better than when I use it in combination with my D7000 (16 megapixels). Is its because the D750 is such a far better camera than the D7000 and that maybe there wouldn't be as big a difference if I combined the Sigma 50-150 with a D7100 or D7200 and compared it with the D750 ?

[@scottwallace1]

K. D. I have a similar scenario. In my case, I was coming from a D7100 to a D750. I had/have the 18-200 DX lens. I find that I am missing the reach and the freedom to just shoot that that lens gave me. When I attach it to my D750 and it goes into crop mode, the resulting pictures look great to me. Perhaps an example of megapixels not being as important as color reproduction and noise/ISO performance. And I get my reach back. Obviously the ideal would be to get the full frame 28-300. But fora light travel combo, it's hard to see the downside of the 18-200 on a D750. Open to feedback. No need for ridicule, let's keep it civil :)

[@pinturicchio85]

+Tony & Chelsea Northrup Hi Guys, quick question. So If you mount an APSC lens on an APSC camera, you still have to multiply by the crop factor to get the aperture and focal length ? thanks

[@TonyAndChelsea]

Yep!

[@leejean1985]

The most commonly used crop lens on a FF is definitely the Tokina 11-16/11-20. They are perfectly useable 16mm+ on FF. Nikon nor Canon offer an ultra wide as fast as F2.8 that can also take filters, which is a big deal for a lot of folk.

[@M0LLER75]

So in video mode will A7s mark 2 work good/the same way as a7r mark 2 in crop 1,5 4K mode with 18-35 sigma (ef mount with metabones)? The end result will be published in HD

[@SofyaBarth]

Hi, Tony all of my lenses are full frame and I have Nikon D850, so do I want the auto DX crop on or off?

[@robertdiaz5068]

Tony I NEED HELP!!! Ok Here's my dilemma I have upgraded to a Sony a7ii From my A6500 the 50mm lens I have is a crop sensor. I've been looking into the differences of the lenses and the Full Frame 50mm gets bad revues on it's focusing and quality. I mainly shoot concert and Club photography so I need that auto focus to work and not be searching around while I lose the shot. I also see that the 50mm on my 24mp is now a 16 or even 10mp. What would you recommend? I think my 50mm shots I take with the crop on my full frame are crispy and clean, But I do not want to sell it and buy another lens that doesn't perform well.

[@FPerez-ti5kj]

So would it be a bad idea to use my 10-24mm tamron on a canon 5d mark ii?

[@yuanw2075]

I don't know canon, but I am user of nikon, i have nikon D610 FX, and also i have Tamron 10-24mm for DX, my experience is about this lens, from 14-24mm, you don't need crop, use mode FX is works perfectly ,even no LOMO, no black corner, but only for nikon. you could try with your Canon 5Dm2, and could you tell me if you have answer ? thx

[@matahari1576]

If you put a let´s say 24-70 mm f2,8 on an aps-c body. Is it still f2,8 or less, since lots of the entering light does not hit the sensor? Please enlighten me!

[@okaro6595]

You get 24-70 mm f/2.8 but the results you get are as far as noise and depth of field is concerned same as you would get if you had 36-105 mm f/4.2 lens on a FF camera.

[@BenjaminMedina]

How's that sony 18-105 for stills? I'm thinking of buying it but I've read conflicting information (sharpness and stuff)

[@dannyklesh]

Tony does using the apc mode on a 35mm prime basically turn it into a 50mm and make it almost 2 lenses ?

[@LuisLopez522]

I had the question about fitting the apsc lenses on full frame canon bodies during a training I was in and it will not be possible. The guys from Canon cleared it up for me. The lenses on Canon sit further in than on the Nikons and the larger mirrors for the full frame Canons's would hit the back of the lens if an apsc lens was mounted to it. That would create a lot of damage to the camera and lens. It just physically can't be done. Kind of the same reason why the Nikon lenses (With an adapter) can be mounted to Canon, but Canon lenses can't be mounted to Nikon. That's why they keep the mounts different between the two canon systems.

[@gur262]

Luis Lopez nope. Not really. Most apsc designs have no Problem with fullframe, they just want more of your money

[@garypaape2359]

Very important video for anyone interested in buying a full-frame camera (and hoping to use inexpensive lenses).

[@masahiko8701]

hi! juste thinking about low light situation Auto Focus. D5500/3300 won't be able to focus in (very) low light situation. (not talking about the d7100/7200/500 of course).

[@akashj6071]

Hi @tony is there any news on the Nikon 135mm f2 G lens the upgrade to old DC version, is it really gonna release or stay in the rumours page?

[@snoop4829]

Sir if you put crop lens in a crop sensor camera. It will not affect the field of view like for example My camera is nikon d3300 which is a crop sensor camera and I put 35mm f.1.8 g lens dx(crop lens). It will not be multiply by 1.5 to become 50mm?

[@okaro6595]

It never becomes anything else than what it is. It does give similar results as 52 mm f/2.7 on a FX camera though.

[@Airestotle09]

Im thinking of selling my a6300 and upgrade to an a7sii(reason being the amazing low-light). However i'll be keeping the crop lenses from the a6300. Having watched this you say the a7rii in video has half the noise with the crop lens. Will the a7sii have similar results?