Tokina SZ 900mm f/11 PRO Reflex MF CF lens review

[@daveinportland]

That's not a lens...it's a space station.

[@malekith13]

Maybe not a space station but maybe if you are lucky you me be able to see one with that thing lol

[@vii-cosmo525]

You had me dying 😂

[@user-fv1hx3ro2w]

Star Wars reference

[@memoweb01]

😂

[@legojackgaming]

That focus pull is a god damn acid trip

[@Aravzil]

The seagulls turning into abstract white rings lmao

[@theowlfromduolingo7982]

Honestly, I expected that the image quality would be worse. But 700$ is quite a lot and you are right, great for a mirror lens but, as whole, the negative aspects definitely outweigh the positive ones for practical use

[@pyotrpig]

nobody would seriously give more than 250 bucks for this one.

[@tridinh1011]

​@@pyotrpig thats very true, you can get older mirror lenses and with a bit of collimation, you can get muchhhhh better IQ

[@theowlfromduolingo7982]

@@pyotrpig Sure but that wasn’t my point

[@gianlucabelgrado3624]

Honestly, the quality is extremely poor, taking into account the price. Many small mirror telescopes, such as the Celestron c5, SkyWatcher 90mm, etc, cost a fraction of the Tokina, and are diffraction limited. Look for any photos of the planets or the moon, taken with Maksutov telescopes

[@dpfreedman]

In 1991 Minolta introduced the world's first and (still) only autofocus mirror lens. 500mm f/8.

[@FerrumMaster]

Still using it via LA-EA5.

[@mxwphoto]

Not sure where Tokina is trying to go with this lens, price seems excessive for what you are getting. The Canon 800mm f11 is similiarly priced, has AF and IS, much sharper, similiar size (when stowed), and serves up full frame. If the Tokina was maybe half the cost at $350 it may make more sense for a first timer who wants super long reach but not spend much money.

[@chewg2745]

its a reflex lens，its diff

[@Shaggyfauvorite]

This is an ultra long reach lens with a very short lens

[@TheWillRogers]

OK, the gulls becoming the circles is kind of a cool effect.

[@geoffreygiebelhaus9142]

Wild to see mirror lenses being produced more and more. They are definitely fun, and have their usage. But the soft center image always ruins the experience for me

[@JacobdelaRosa]

I think mirror lenses are some of the most fun I've ever had with photography. Good stuff!

[@harrison00xXx]

because of the bokeh? :D Its interesting, but this donut shaped background blur is not everyones favorite. I was hoping for years for some usable sharp and good mirror lenses, thankfully canon made the decision much easier with an autofocus, stabilized lightweight 800 F11 for the RF mount

[@ManlyHK1]

U wanna buy mine? See my other reply!

[@Dewabarasunderan]

For people who bought a mirrorless camera and suffer from phantom pain😅

[@tielmaster7879]

That's legit the coolest looking lens I've ever seen.

[@frandecatta]

Cameras with this lens won't be a mirrorless anymore...

[@magiccarpetrider4594]

Wow, haven’t seen a mirror reflex since I used to shoot PGA tour in the 80s. Had a Nikon 500mm f8 and 800mm (maybe f11).

[@ro30]

MTO-1000!

[@laurenoe]

I have the Sony 500mm f8 autofocus lens, which is a rebadged Minolta. Its sharp, and works perfectly with my A7RV and LAEA5. LOVE it!!! Sharp too! One of the best "secrets" in the Sony system. It would be amazing if Sony re-released it for native e-mount.

[@pacof.3659]

That sounds very interesting to me! I use the Sony 70-350mm on the A7r IV because of its light weight. But I'm not completely convinced.

[@DynamixWarePro]

Mirror lenses are definitely interesting with their long focal lengths, but as is the same for some other mirror lenses, the softer image quality and low quality lets this one down.

[@harrison00xXx]

They just have no competition so the few companies into mirror „lenses“ produce only garbage. I have seen 8 and 11“ astrographs, basic newton as well SC (schmitt cassegrain type) etc, i use personally a 6“ 750mm newton telescope for astrophotography and i can tell you: Mirror lenses could be TACK SHARP and have no CA, its easily possible

[@sorek__]

I recently played with few mirror lenses on my A7R IV (61mpx). Turns out my old Zeiss Jena 135mm f3.5 wide open when cropped offers better quality than all of them being at 500-1000mm.. Go figure!

[@Liquidclouds]

That old Zeiss 135mm is amazing.

[@sorek__]

@@Liquidclouds one of best lenses, simple design and awesome rendering. Sharp too! Useful as macro with extension tubes. Can't get enough of how good value for money it is!

[@bueb8674]

I got a great deal on a like new Tamron 150-600 G2; $1100 CAD. I had considered this Tokina briefly, glad I didn't go that route. As others have commented, the price is wild. I do have a 400mm Tokina SZX(used, $130) and yeah it's nice to have such a compact tele, but it has its limits for sure. Also random note; the hood on this 900mm is waaayyy too short. The 400mm has a longer hood, like longer than the lens itself. Mirror lenses absolutely NEED a serious hood or the contrast will be rubbish.

[@tridinh1011]

Since this is basically a mini reflector, i wonder if some collimation would improve the image quality

[@WiwatChang]

Perfect for shooting full moon and possibly the setting sun

[@richardgrant418]

Damn good point. I love shots of both especially with the sun, I would ~ guess that those soft images would be a much lesser factor than on just about any other subject A perfect match of a quirky lens and a universally liked subject

[@dougsmit1]

I do not have a You Tube channel on photography. If I did and were to review this lens, I would have mentioned that this lens is one of three from this manufacturer down to a 300mm f/7.1 which is a good deal less extreme but shares some of the 'faults' you mentioned. I also might have mentioned that it seems odd that it comes in Canon M but not in RF or RF-S which would make it useful for the current crop of Canon lenses. Canon is not locking out manual focus RF lenses. However Canon users have the option of the non-mirror 800 f/11 which is image stabilized, autofocus and sharp for a couple hundred more. What it lacks is compactness and close focus (unless you add a stack of extension tubes). I have an antique Sigma 600mm mirror which shares the ring bokeh and close focus not to mention difficulty in focusing but is not unsharp if and only if you get the focus spot on using a tripod and magnification with a current mirrorless. The question is just how badly you want to get a headshot of that woodpecker that lands ten feet from you and whether you are willing to use an AI sharpener like Topaz. I wish I could show you mine from 15 years ago and I regret I can not get that bird to do a repeat visit at that distance. I doubt many people who buy this lens will be happy simply because those with the experience to use it properly often comes after the desire for something cheap and extreme has passed.

[@pjfonline]

Any downloadable sample images? I would love to see what I can make of it using Lightroom and Sharpen AI.

[@AveryDelMiller]

Lens manufacturers are always great at coming up with catchy names

[@drguffey]

The knocks, like contrast & sharpness, can be adjusted in editing. I have a Sigma 600 Cat & love it.

[@jukeboxjohnnie]

Oh the 80's mirror lens nostalgia, out of focus blurred images, mould and fungus growing on mirror surfaces, if they werent knocked out of line with the slightest tap...

[@Blockbuster2033]

Mirror lenses have no chromatic abberation in general. That is because unlike refraction, reflection is not dependant on wavelength. Light always reflects at the same angle that it hits the surface, whereas the refraction index for a material is always dependant on the wavelength of the refracted light.

[@squishyflac]

Would've loved to see a moon shot or deep space shot

[@SuperJoePardo]

Me too

[@nickundesu]

my go to reviewer

[@randomlyunknown2012]

Any plans to review the samyang 35-150 and compare to the Tamron? I'm wondering if you like it as much as the 135. Thanks again for all your great work!

[@pwolkowicki]

I have a reflex lens. There is one tric to change the aperture. I bought some spare lens caps for it and drilled large holes in them. Different number in each. It changes both aperture and bokeh, although I didn't notice any increase in resolution maybe due to high aperture numbers.

[@bngr_bngr]

I still use a Nikon 1000mm f11.

[@richardgrant418]

How is it for priority #1 - sharpness? Does it have auto focus or some form of image stabilisation?

[@bngr_bngr]

@@richardgrant418 the lens is more than 25 years old. On a tripod it’s sharp, not clinically sharp.

[@marhabanet]

Please do a side by side with the RF 800mm F11

[@PrimalShutter]

The 800mm would blow this one out of the water

[@harrison00xXx]

RF 800 F11 wins, hands down. Any EOS R system user doesnt even have to bother with such bad mirror lenses, especially not one for 700$ where the RF 800 F11 is a no brainer

[@marhabanet]

@@harrison00xXx And has image stabilization, and full frame circle, and can work with the new Canon crop sensor bodies. It also can collapse to a smaller size for transportation, and likely better in handling while shooting because of the longer barrel, and comes at a similar price point as this lens. Why then Tokina is pricing this reflex lense so high!?

[@harrison00xXx]

@@marhabanet I am also very distracted by the price, its not even close to worth it.

[@richardgrant418]

@@harrison00xXx do you know if there was an EF mount version of the 800/ 11 - or similar for Nikon with the IQ, and preferably some IS?

[@GordoFriman]

Its cheaper to use whatever lens you have, then crop a tiny portion of the center of the frame and use AI to enlarge it, done!

[@Skipsul]

One advantage of a mirror is that you should get practically no chromatic aberrations because you have no refraction, only reflection. Shame they didn’t polish the mirror with more precision, it would be sharper.

[@harrison00xXx]

yep ALL (!!!) of these „mirror“ lenses are just terrible. And i thought once with a super old 6“ newton telescope my mirror is bad. Then i have seen this „mirror lenses“….

[@samk2407]

One of the first videos I ever watched of your's was the Samyang mirror lens from back in the day. Banger vid. Id really love you to review the Tamron 500mm f8 tho. I have a copy of it and I think it's really quite good as mirror lenses go.

[@s.m8766]

maybe at some point you need to do a comparison of all the mirror lenses you have tested! if that's at all possible from the data in your archives...

[@user-fd7qb7gn9t]

Interesting, and there might be some use cases to some specialists out there, however, DSLRs I am using for max 200mm with AF (weather resist tele lens) and all the convenience attached to such a combination (300mm in 35 terms). If I want to go mega zoom then a Nikon bridge gets into the package, my oldest (2012) is a P510 w GPS (1000mm, later I got a P600 1440mm, but larger, heavier). From all comparisons I did, this was always very close or equal to APS-C, even in the close range (18-55), not mentioning the tele capabilities with such quality. Users back then shot (filmed) Saturn and it's moons, later the P1000 (very heavy) arrived, oh my. The old P510 is still sufficient today since small and light. I'd think it outperforms such tele lenses at the most use cases, though not all of them, pretty sure :) Just I can't imaging why - but to get the image on a sensor and system of choice since sensors of bridge cams are small ... Anyway the final result counts, so, if a mirror lens is somewhat soft, what is the point, or what are the advantages over using a good bridge cam for mega tele ...? Best :)

[@brreeaad]

I wonder what focal length conventional lens you'd need for the effective resolution on an image cropped to a 900mm focal length to be the same as this lens, considering the low lens sharpness/resolution

[@rayrayg9]

Better just get an old 400mm-ish lens with 2x TC, I think.

[@harrison00xXx]

The thing with the average mirror telephoto lens - their quality sucks mostly, its anywhere between bad and unusable. I have a 6“ 750mm and a 8“ 1200mm newton (so a mirror telescope) and a lower end 80mm APO refractor, my 6“ newton is basically sharp enough (on 26MP full frame), the 8“ is not as good but a awesome visual observation telescope, also a heavy and big thing. The 80mm doublet is not too bad regarding to sharpness but the chromatic abberation pretty much destroys every astro image, here a mirror telescope of any kind is much ahead since the different wavelengths dont split at all. If there would be any manufacturer caring about mirror lenses and produce a good one, trust me…. they can be SUPERIOR to other lenses (CA, sharpness) with only the basic mirror lens/telescope downsides (donut shaped highlights in the bohek, disturbing bokeh more often than not)

[@AzarathGirl123]

Lol, birds turning into donuts😂

[@striderwhiston9897]

Heya mate, I'm wondering, have you done a review on the Nikon Z50? I can't seem to find it on your channel.

[@youcdl]

Hey Chris, I've been following you since ever, and now I have my first question for you. What is the sharpest mirror lens for DSLR you've ever tested? (Maybe consider a video about this topic) Anytime a new mirror lens comes out I feel very interested, but then you release a video about that lens and all my insterest vanishes...😅

[@richardgrant418]

Christopher- or anyone- Have you used a mirror lens which had a better image quality? And a less ambitious focal length, so it was more manageable to focus?

[@myself3209]

1:53 I like how th birds just turn into donuts

[@JAMESDOWDELL-dv9se]

An interesting comparison might be the Nikon P1000. This camera demonstrates the atmospheric limitations to long lens resolution at extreme focal lengths. It exhibits none of the sharpness limitations of this and many other mirror lens.

[@LuthfiHakimAbdillah]

Your voice always sounds relaxing i dont know why.. 🤷‍♂ id love to be live next to your house 😂

[@OmarSpence]

Wow, sharp as a cotton bud 😂

[@maxvain]

Just adapt a Sigma 150-600mm comtemporay. Crop factor will give you 900mm on APSC with much better sharpness, aperture range, AF and much more.

[@djsupream]

how about doing a shoot out to see which mirror lens is best value and which gives best and sharpest picture???? samyang.sigma,tokina.etc

[@chinitopinoy1726]

Could you post some RAW image samples for us to download and play around with?

[@Three7G-MTB]

Would this fit on the Canon T8i ?

[@ONILEO00]

That just looks like a Schmidt-Cassegrain/Maksutov-Cassegrain telescope modified to be used as a lens... I guess all the mirror lenses you speak of are just that too (I'm new to photograpy).

[@lawlaw9176]

Though I am using camera for 7 years and has zero understanding about this lens.....what is that middle thing and how it works? 😅😂

[@kuroexmachina]

thats wild

[@ChrisGower]

Could be a stupid question but... too soft for moon shots?

[@helisoma]

correct...it's only benefit is no chromatic aberration.

[@richardgrant418]

But maybe good for sunsets and sunrises?

[@helisoma]

@@richardgrant418 Yes that kind of compression where you combine the sun with foreground elements like city skylines or individual people or buildings could work but I've seen tests or sample images from vintage mirror lenses (specifically the Nikon and Minolta) and they perform better than this one.

[@ErnieSesameStreet]

Will be great to have some full moon photos sample :)

[@Thefuror38500]

Unless done properly with really high resolution (ie, at least really tight sampling, high framerate, stacking and atmosheric correction), moon shots are the most boring thing ever

[@gradypicinich2404]

Is there actually a mirror lens that is worth buying? It does seem like a cool concept, but I don't think I've ever seen one that performs well

[@harrison00xXx]

Nope, im looking also for one since years. The thing is…. IT IS POSSIBLE to make a good mirror lens (i have 6“ 750mm and 8“ 1200mm mirror type experience), these manufacturers just dont care enough and the only way to get a sharp 700-1500mm with mirrors is actually a real (much bigger and hard to focus fast and precise enough in time!) newton mirror telescope. But its worth it mostly, i paid 300€ for my 6“ 750mm with motorized EQ mount and 180€ for the big 8“ newton on a basic dobson mount for visual observation) The best way is actually to go for a Canon RF 800 F11 and the EOS R camera you wish if you want anything similar (weight/size) but just BETTER in any way (especially stabilizer and sharpness)

[@tomjanowski8584]

Minolta made an a 500mm auto focus mirror lens. Based on the images it produced, it may be the best one out there.

[@oohms88]

It would be a great lens for moon shots

[@UnknownUnknown-uc5ty]

Might aswell get yourself a MTO 3M-5CA 500mm f/8 *AND* a MTO 11-CA 1000mm f/10 off of eBay for that kind of money (~150€ to 250€ each). Frankly you'll get the same if not better IQ. They're *super* sharp with a properly relaxed mirror (which you can do on your own under 2 minutes, provided you have a tiny screwdriver), the contrast is excellent, they often come with ND filters/accessories/cases, are easily serviceable and built like tanks.

[@andersandersen6295]

The reach is the most interresting aspect of this lense, and you sort of failed to show how far it zooms?

[@sfiron]

If not extra sharp what’s the point?

[@joliver4083]

Waiting for Canon RF 100-300 F2.8 & Samyang 35-150 F2-2.8 review.

[@thepianoplayer416]

Interesting lens. Had a similar lens from Nikon. Not sure why Tokina puts "pro" on the lens when the quality is not very good that a professional would use.

[@ManlyHK1]

I bought the 600mm version n immediately regretted it. Of every 10 shots, only ONE would be considered good, 1 would be JUST OK, and 8 would be totally useless! I live in Hong Kong where unfortunately shops never offer a refund. I paid about GBP380 for it! Now I’ve switched to Canon n got the 600mm f11 - it’s just so brilliant! Btw anyone interested in buying my 600 I would gladly offer it for just GBP200 - u pay shipping n taxes . Still boxed - have it for 1 week!😢

[@Pirate_]

Ah yes, my favorite mirrored lens going into a mirrorless camera.

[@davidbover7734]

That seems quite expensive for an APSC only lens considering the price of the Maksutov Tele Objective - f/10 - 1000 mm which @ €331+vat works on full frame.

[@asfsfas2435]

no tripod collar?

[@keshhh]

The urge to get this lens is tooo high. I know mirror lenses are junk but they are just so fkin cool

[@harrison00xXx]

get a real telescope (2nd hand very affordable) and enjoy proper mirror „lenses“. visual observation is affordable (8“+ newton and a dobson mount), astrophotography is tricky and depending also on your wishes (300mm for wider fields, 500-700mm for the most interesting targets and 1000mm+ for very small galaxies and nebulae) The astrophotography way is a rabbit hole, partially at least. I began with 6“ 750mm, got basically everything which fits this 750mm FoV very good but then i needed to choose: should i get a 250-400mm APO telescope for the bigger stuff or go for 1200mm+ for small galaxies/nebula? In both ways, i cant do the other focal length and i would end up with like 4 or 5 telescopes.

[@Al.j.Vasquez]

It's better to spend those 700$ on a 600mm lens that's sharper, and crop the images. That's why i haven't bought a cheap ultra telephoto lens to take photos of the moon, my canon 55-250 stm is very sharp at 250mm (400 FF) and i get decent detail on the moon.

[@harrison00xXx]

really? 400mm is…. short. I tried it once with a 75-300 on APS-C and i was dissapointed pretty much (same for wildlife) When i use 1280mm (RF 800 F11 + R7) i dont even come close to a frame filling moon, 4k60 crop video is pretty perfect to get it nearly frame filling (about 2000mm), and with enhanced stabilizer i can zoom in a bit But as much i like the RF 800 F11 for its awesome stabilizer, weight/size and overall image quality, i also prefer a lot the Sigma 150-600C which is just more versatile and especially usable with its F6.3. (and effective 240-960mm)

[@adrinathegreat3095]

That's not far off the price of a sigma 150-600 lens, which for a bit more you could also buy a 1.4x and your almost there reach wise, plus you get a far sharper lens, Auto focus and more importantly I.s.. 700 buckaroos is expensive

[@falubii9712]

It's small, but the Canon RF800mm f/11 seems like a much better proposition at $300 more. Totally different ecosystem of course.

[@pyotrpig]

I would pay 300 at max for this. 700 is insane and ridiculous.

[@harrison00xXx]

i paid 300€ for a 6“ 750mm newton. effective F4 (150mm full mirror) but i stopped it down to around F5 (about 130-135mm aperture left) for slightly more sharpness (it was already sharp but i wanted more, especially corner sharpness was needed) Mirror type „lenses“ can be sharp, the base of their technology is basically the same with my 6“ newton and its very sharp (except corners…), has NO chromatic abberation and its contrast is good enough as long the main mirror is clean (enough) Here and there these 500, 600 and 800mm mirror lenses are 2nd hand cheap because the users realized how bad this waste of „lens“ is and nobody buys it for a higher price. Some day if i find a very cheap one for like less than 50€ i will go for it. Just for another „lens“ in my very funny looking vitrine full of radioactive, vintage and once used lenses. For 700€ i got a Canon RF 800 F11. Its also super compact and especially LIGHT and well STABILIZED. Superior to any 800-1000mm „mirror“ lens!

[@hector5851]

Could you make a comparison with a refractive lens? I'm pretty sure you will be better off with, say, a 200-300mm sharp lens and cropping in.

[@daniel635biturbo]

Or a cheap vintage 400mm with a 2x teleconverter (not sure the teleconverter actually makes anything better)

[@ninjaman58]

Next time plz zoom back out max so we have an idea of how far the object really is.

[@MM-mo9hn]

SAMYANG 35-150 f2-f2.8 when Chris!!??

[@mtbboy1993]

0:17 why is there a thing in the middle of the lens?

[@bueb8674]

It's a mirror lens...

[@zachsteiner]

That’s how mirror lenses work lol

[@mtbboy1993]

@@zachsteiner I saw a vid om how they work later.

[@XL1813]

Who would seriously pay $700 for this? It seems fairly good for a mirror lens but that doesn't really say much because mirror lenses are niche. I'd be surprised if this sold even moderately well.

[@GregorMima]

Yeah that´s why it sells for 900... low sales unit count.

[@kolliparapremchand9235]

Please compare nikon 28-75mm vs 24-70 s lenses.

[@nathanbasset]

Seems like an alright value. But the only canon mount is EOS M? Really? At the very least support EF, then it can be adapted to both EF-M and RF!

[@AlRoderick]

I think that the third parties like putting things out for EOS M because it's easy to create a variant of other small lenses designed for other systems and make them work with the EF-M lens mount. A lens that fits EF or RF would be a whole new lens with a different size barrel.

[@CristoforoBonissone]

👍👍

[@ivarnordlkken8082]

Pentax had a zoom mirror lens.

[@richardgrant418]

Can you tell us any more about it? Did you own one/what was the image quality like? I’m * guessing it would probably work on “most” newer cameras with an adapter

[@TSAlpha2933]

So it's basically a 500mm reflex with a focal extender, for crop-sensor... 😬

[@Paul_Rohde]

Can the X-mount version fit a teleconverter?

[@Dabossna]

Did you ever figure it out ?

[@Paul_Rohde]

@@Dabossna No, I never chased it up. But after looking at the review again, due to the lens' low image sharpness, all that a teleconverter will do is amplify blur up rather than increase resolving power. Cropping will give the same result of a TC without the stop or two loss of light from a 1.4× or 2× teleconverter -- unless you want a tighter frame for a live feed or video without a cropping step. Buying Topaz software or similar would be more worthwhile than investing in a teleconverter with this lens!

[@Dabossna]

@@Paul_Rohde thanks 🙏!! 🩵

[@GregConquest]

Why do mirror lenses have such coarse focusing? I have a mirror lens too, and it turns only a quarter revolution, if I recall correctly, for the full extent, and it is crazy hard to get accurate focus. "Back just a little . . . come on and move . . . Argh! Too much! Back in a little . . . Aik! Now too far the other way!" That's how it goes several times when trying to focus. I'd think being annoyed at having to turn two or three revolutions to go from near to infinity would be much preferable to OFTEN not being able to get focus. Moving targets are nearly impossible to stay focused on. Even for astrophotography it can be challenging.,

[@bhargavsharma9241]

Practically I cannot fathom who would actually use this lens in most any real life scenario. Its a novelty item sure, but where would one really use it. On top of everything, the Image Quality just doesn't seem worth the compromises.

[@mambotkurt7296]

Well, that image quality part of the review I'd call literal pixel peeping.

[@bamsemh1]

Moon photography. Problem solved 😉

[@mylucksmiles]

The lens is In the price range of a Coolpix camera that gives access to a cheaper 900 mm lens. Also you get a a second camera . This may be a sensible alternative for such a exstream length plus the other advances of it being a zoom camera . Just a thought

[@Kaitowaihk]

More reflex lens please.

[@harrison00xXx]

Yeah, i would love a BIG comparison with for example all 700-900mm mirror lenses he can get hands on to. I avoided these lenses yet because it seems EVERY mirror lens is terrible (not only because of image quality!)

[@j16m02]

looks like you forgot to wipe the packing grease of the front element.😁

[@Skipsul]

Will watch later, but I thought you'd sworn off mirror lenses?

[@christopherfrost]

That was pinhole lenses :-)

[@Skipsul]

@@christopherfrost What about a pinhole mirror lens?

[@haldar9528]

Got a 400 f8 mirror from Tokina, same experience. No idea why'd anyone get it, me stupid.

[@llIlllllIll]

you could probably just get something like a 70-350 and crop, it will still retain more detail

[@harrison00xXx]

nope I mean sure its quality sucks and its with a high chance very comparable to a 70-350mm lens cropped to 900mm, but in general these mirror „lenses“ are all bad. Doesnt mean it could be done better because it can! I have enough experience with telescopes (as well modifying, optimizing/adjusting), multiple newton/mirror and one APO doublet with 80mm aperture. Mirror designs can be easily sharper and superior (IQ wise) to other lens designs/regular lenses with only small downsides (mainly a super disturbing and donut shaped bokeh and its probably impossible to build a stabilizer into a mirror lens type, autofocus could be possible but expensive and hard to make precise enough)

[@llIlllllIll]

@@harrison00xXx but this one isn't. And for that it's pretty expensive

[@harrison00xXx]

@@llIlllllIll Yeah its expensive and bad. I would also wish these mirror lenses would finally get better, instead it seems they are getting worse (and more expensive, lol)

[@GetOutsideYourself]

The center is terrible, but the good news is the corners are just as terrible!

[@jan-martinulvag1953]

Buy a bridgecamera instead

[@TheHirade]

f11 ?????

[@silverrayleigh6284]

Uhh sunset lens

[@gianlucabelgrado3624]

Honestly, the quality is extremely poor, taking into account the price. Many small mirror telescopes, such as the Celestron c5, SkyWatcher 90mm, etc, cost a fraction of the Tokina, and are diffraction limited. Look for any photos of the planets or the moon, taken with Maksutov telescopes

[@NOM4D20]

Canon's 600 F11 is just 100$ more, has AF, has way better bokeh, and I'm 100% sure, that even if cropped, the Canon in has more sharpness than this.

[@tankivulture148]

It's quite a bit more expensive than a telescope that's several times bigger. It might have it's place in the market, but for 700 it's a no for me

[@GamingInfested]

for same price you can get celestron with star tracking and camera ring

[@DeputyNordburg]

I am ALWAYS disappointed by mirror lenses. Love the idea, but the image quality always stinks. Comically I love the donut bokeh, and wish I could get that with a conventional sharp telephoto lens.

[@deingewissen_official]

Facus distance