5K GH5 Test - Sharper, cleaner, more flexible footage

[@pdelinikolas]

Great Video! One thing I did not understand is, when shooting on the full resolution does the horizontal filed of view also expand? Does the "normal" 16:9 4K comes from oversampling the full sensor, or croping in? Thanks!

[@ShotByMyles]

Thanks! That’s a good question and I realise the way I demonstrated the extra resolution can confuse things, but it’s the same field of view (or extremely close) width-wise, but there are more pixels packed in to the 5K image and you gain FOV above and below the usual 16:9 window. You can crop in to those extra pixels to add zooms / pans / rotations while keeping a 4K resolution, or you can use the whole 5K image in a 16:9 format and have more pixels width-wise than 4K gives, and still get extra image above and below to tilt / reframe with. Hope that makes sense!

[@ShotByMyles]

SporkStudio also yes, the GH5 4K mode is already over-sampled on the sensor.

[@pdelinikolas]

​@@ShotByMyles Ah I see! Thanks for clarifying that! So it seems that all other 4K modes are indeed oversampled and not croped on the sensor, so it is not a pixel to pixel readout.

[@ShotByMyles]

SporkStudio correct! In the video I said outputting the 5K video as 4K is sharper as it’d be oversampled- that’s assuming the bigger benefit comes with over-sampling in post rather than what the camera does.

[@pdelinikolas]

@@ShotByMyles I do not currently own a GH5 to test this, but I think it would be an interesting comparison to see if the oversampling done inside the camera (or in post) improves the image quality or not. You would have to shoot a normal 4K with a zoom lens and then shoot the same thing with the 5K mode but zoom out a bit so that when you crop to 4K pixel to pixel in post you see the same filed of view and can compare the overall sharpness and image quality. The reason I think this would be interesting is because even though camera manufacturers promote oversampling (as it is better for scaling down because you do not lose any light and filed of view from the sensor as with croping), TV specifications (EBU specs come to mind) ask that when you shoot something in true 4K (not UHD) and need to deliver to UHD, you should crop in and not scale down as a pixel to pixel copy is better than oversampling.

[@s.s.productions]

Super helpful video! Now I've applied your tips to my GH5ii

[@DrVikramShrivastava]

You are such a humble and hoest person. Very soft-spoken. I like your review.

[@ShotByMyles]

Thank you very much, I appreciate the kind words!

[@EposVox]

This was actually a big selling point for the GH5 when I was first looking into it for this very reason.

[@deverenfogle3201]

GH5 is still killing them all! :) Could you do a video on how you shot for the transitions and then how you edited them?

[@MotionArrayTutorials]

This is incredible! What a genius way of utilizing the available settings. We are very excited to see how we can capitalize on this information as we currently produce videos using the GH5s. Thanks so much for sharing!

[@ShotByMyles]

Thanks a lot! Please be aware though that this relates to the GH5, if you're on the GH5S I don't think you get 5K with the sensor being a lower resolution :)

[@ryanmahendradani891]

I am GH5 user, and I am today years old of knowing this feature. I usually using slow motion in 1080 with my video, and I never even try this.Very helpful and 1 more card to play in my creativity!

[@Iliya_sh72]

For the past 1 year many great cameras have been introduced to the market and yet I feel my remarkable GH5 still beats all of them in overall bang for the buck and options. If Sony Alpha users had 5K option they would shove it down your throat every 5 seconds hahaha I actually have an anamorphic setup and if exposed correctly, the footage out of this camera is stunning. Having the 5K option is just the icing on the cake. That "Anamorphic desqueeze display" is such a huge help when shooting with a 2X anamorphic scope

[@ShotByMyles]

Absolutely, it’s a brilliant camera! Would love to try an anamorphic setup at some point, you must be having a great time! Thanks for watching and commenting

[@knobelix]

If you use 3:2 ratio for video you can record 5184x3456, that brings u a higher effective resolution for 16:9 material! 4:3 = 4992x3744 -> in 16:9 -> 4992x 2808 = 14.017.536 pixels 3:2 = 5184x3456 -> in 16:9 -> 5184x2916 = 15.116.544 pixels Easies way is to set 16:9 then you dont need to crop anything later you need to disable anamorphic mode , thats all ;)

[@jaysnappsmediallc]

man that edit was sick!

[@lastfrontier]

Excellent video! You seemed to have covered all the bases for anyone trying this themselves, thank you for that.

[@skybizvideomediaproduction6167]

were making a lot of videos at 1:1 for Instagram so instead of sampling down from 4K 16:9 this gives me the ability to go to 1:1 easily from 4:3 ratio, then sample down to 4K 16:9 but have lots of movement and also to shoot vertically. Will see how this all turns out but very interesting .

[@samthetinkerer4947]

First saw your footage on GH5 facebook page and now KZbin is recommending you. Small world. Have a like.

[@ShotByMyles]

Much appreciated, I’ll try and give you a break from my stuff now though ha

[@MyJeanf]

Good point to know, thanks Myles.

[@JamesWickendenVideography]

Great video man, great to know the GH5 can do this!

[@ShotByMyles]

Cheers James!

[@PaulPhillipsFix]

Beautiful work !!! Great review. I'm looking to widen my scope with video and photography and improve my channel which was all shot using Go-Pros. Maybe this would be the camera to consider. Thanks, Paul @

[@liesnot2k562]

I've decided to go with the Lumix S5 and The Lumix s Pro Lens.

[@dpc4548]

I did this years ago on the GH4 and yea, the 5k is amazing in these cameras. Recently, I've managed to upscale them even more in Resolve and get some very useful recomps.

[@renanmlopes]

That cinematic intro was beautifull. Great video!

[@ShotByMyles]

Thanks a lot Renan!

[@DawidDoesTechStuff]

Wow, this makes me really want a GH5.

[@photogenic2010]

Very good explanation of little known features of great value. Thank you.

[@ShotByMyles]

Thank you Rob!

[@JordanDueck]

You deserve more subs good sir. Thanks for sharing this info!

[@ShotByMyles]

You’re too kind!

[@BenjaminFriant]

Thank you so much

[@tusslemania]

that intro is so rad!

[@ScottBell]

Neat idea, never tried this feature but could see it being handy. Thanks!

[@ShotByMyles]

It’s worth a test, thanks Scott! I filmed a tiny concert this weekend and had your vid in mind, cheers 👍🏻

[@AlexKahl]

WOW! That is awesome! Thanks for that already most useful Video of the week!

[@ShotByMyles]

Cheers Alex! It’s worth a test :)

[@PaulRichards78]

Only person I’ve seen mention how to deal with light flicker Amazing Thanks 👍🏻

[@ShotByMyles]

The PAL region struggle! Thanks for watching

[@Logic23music]

Great video bro!

[@sandeepmates]

Thank you very much as I have just bought GH5 this information is really helpful for my coming videos and other projects , amazing camera with this price. SUBSCRIBED for more.

[@otm777]

Nice! Can’t wait to give this a try.

[@ShotByMyles]

Hope it works out 👊🏻

[@MarkAfterDark]

This is amazing and I don't even know why I didn't think of it myself. I even have a 1.33x Anamorphic adapter. Even better since it stretches a 4:3 image to 16:9 in post, using all those beautiful 5k pixels

[@ShotByMyles]

Thanks! The anamorphic stuff I’ve seen looks great, worth a go! There’s a YT channel called Ichidomo with some lovely work :)

[@Mikeshyne100]

Thank you for making this video, that footage looks super crisp.

[@ShotByMyles]

And thank you for watching!

[@robbyboyo]

Nice roundup of pros and cons. My pc struggled with the format and I has issues with ibis. I will try again as I thought the colours with this setting came out very nice.

[@ShotByMyles]

Mine struggled real hard with the files until I converted to proxies :) I found IBIS sometimes a bit weird too while going handheld, did you turn off the anamorphic mode within the Stabilizer menu?

[@robbyboyo]

Shot by Myles I had ibis on the 2.0 setting. I will try again.

[@searchmedude]

Excellent video. The GH5 is still the one to beat in this price range. Subbed. 👍

[@ShotByMyles]

It’s a beast! Thanks Michael 👊🏻

[@viktorsz]

Cant wait to give it a shot, awesome content! Subscribed!

[@ShotByMyles]

Cheers, good luck with it!

[@jetthe860]

The thing I noticed with this technique is that when working on a 4k timeline in premiere, the 4k footage is actually sharper than the 6k downscaled version. This is probably due to the pixel mapping when scaling with an odd resolution. When working with the native resolution of the 6k files, while matching the frames exactly, I saw no discernible differences between the 4k version. So the biggest factor I see for using 6k would be for image flexibility rather an improved image quality. Tested this both on premiere and Fcpx.

[@ShotByMyles]

That's very interesting, thanks for the feedback. If true that's frustrating that they aren't able to use the extra resolution for sharpness, wonder what the impact would be on noise though. Cheers

[@DrPhilro]

Did you export? Probably won't see any noticeable difference until you've downscaled.

[@pieterpauwelbeelaerts5995]

hmm, I did a zoom test once. the 4k all I has bad quality at 150percent zoom while the 6k is holding up. the 6k is best if you plan to zoom in imho.

[@eyeballbilly]

This is brilliant, thank you. I wonder why no-one else has stumbled upon this?

[@ShotByMyles]

Thanks a lot! I can’t take credit for discovering it but it does seem to be one of those things that’s slipped under the radar!

[@biscuitsalive]

eye the moment lots of people did this many months ago when the firmware update came out. I’ve used it myself for certain rotoscoped shots where I needed max res and locked off camera of dancers. The extra head room helped out as they moved around the space.

[@ShotByMyles]

biscuitsalive yes I’m certainly not claiming to have discovered this, just not seen a good video on it myself so thought I’d try 👍🏻

[@zubuthevodo9485]

Intelligent editing

[@gcprost]

Thanks this was very helpful. The extras were especially helpful (Menu locations, IBIS settings, and Guide). I was surprised that my editing system was able to edit these files easily. I have put the 6K set up on a custom setting for both of my GH5s.

[@ShotByMyles]

Thanks again Gerald, cheers!

[@andytee88]

Great video, hope your channel grow

[@ShotByMyles]

Thanks a lot!

[@jbmi5342]

Loved seeing the Leeds B-Roll!! Such a beautiful city and I love seeing something from there blowing up like this.

[@ShotByMyles]

Thanks! It is a bit weird to think of the people that have now seen some obscure corners of Leeds!

[@robjackson9364]

Great review of using 5k on the GH5! I'm not interested in extra pixels, I think what would swing me is image quality improvements with the utilization of h.265. The Samsung NX1 is still a beast of a camera 4 years later mainly because it uses h.265. I'd love to see or perform a test between 4K 10bit 4:22 150 mbps vs 5k 10 bit 422 200 mbps of pans, tilts, gimbal, and movement within statics (statics are not a good test for compression because codecs thrive with limited changes in the scene). Andrew Reid from EOSHD did a nice review of the 5k feature, but I'm still curious with scene changes and comparisons.

[@ShotByMyles]

Thanks! I’m probably not the man for that job- but it’s worth bearing in mind the 5K is 420 and not 422 if that matters to you. Resolution aside, I’d guess at the 4K mode because its 150Mbps is spread across less than half the pixels of the 5K’s 200Mbps. I know HEVC is more efficient but I’m not sure it bridges a gap that big.

[@robjackson9364]

@@ShotByMyles 5k is not 10 bit 422?! Son of a biscuit. 4k 10 bit 422 All-I, 150mbps, 1080 10 bit 422 All-I 60fps, and 100mbps are pretty impressive in themselves. Just picked up the BMPCC4k and I'll be interested in seeing the differences. Thanks for the reply!

[@ShotByMyles]

Thanks Rob, I’m very jealous of the BMPCC4K, looks like a ridiculously good camera! If you aren’t already, I recommend subscribing to a channel called ‘Make. Art. Now’ as that guy is doing great work with his BMPCC4K and shares some rigging stuff. Plus he’s possibly my favourite KZbin, ridiculously talented and entertaining! All the best with the new camera!

[@Autofixpals]

i have been doing all of my shooting in this mode now. I even have it mapped to custom button 2. It's awesome, But you better have a LOT of storage the files are HUGE and your machine needs to be pretty beefy. I usually encode it to prores and edit in resolve.

[@ShotByMyles]

Absolutely! My edit machine is the opposite of beefy so it’ll be rare for me in practice :)

[@chcomes]

In my testing, best was face/eye AF in combination with a smaller focus area. 225+face did not perform as well, but when limiting the search of the face (rather the lock-in) to a smaller area, it had much better confidence and less hesitation

[@RobbieSkaff]

Okay so that intro was cool AF

[@ShotByMyles]

Cheers 👊🏻

[@blasio17]

Great video! Clear, detailed and good examples! Thanks

[@ener9el]

Indeed superior work with the sound! Greets from Russia =)

[@LowellProductions]

nice video. Im definitely trying this out with my GH5

[@ShotByMyles]

Thanks, all the best with it!

[@Mehzeb]

Excellent video, Myles!

[@ShotByMyles]

Thanks a lot!

[@heartshapedfilms]

Literally came for the Leeds montage - lived it loved it.

[@BK42Cycles]

Very interesting :)

[@RandyParsley]

Kaboom! Mind blown!, subbed. (Iif you are going to do a vid for Emotive Color's Alexa lut, a step by step of how you use it in post would be awesome. I find that their information in step by step is a bit lacking, thanks)

[@ShotByMyles]

Thanks Randy, I’ll bear that in mind! In case it helps, my workflow with it so far has been: 1. Correct white balance (if necessary). If on FCPX, avoid the white balance function if it impacts luma 2. Add the conversion LUT if using cine-D or HLG to convert to v-log 3. If shot is over-exposed (which is recommended for slow motion) bring down exposure to normal here. Skin tones and details should be below 70 IRE otherwise they could be lost in the LUT’s rolloff. I normally disable the conversion LUT in step 2 to judge that. 4. Apply GHAlex LUT 5. Adjust saturation / luma to taste. If skin tones are too pink I may adjust colour in mids or try adjusting white balance done in step 1.

[@LuBiBochum]

Very good video-footage is incredible...Thumbs up.

[@ShotByMyles]

Thanks a lot!

[@JohnBeckleyArt]

Great video

[@perrymorrisjr]

To simplify, is this using anamorphic mode without an anamorphic lens that gives us better resolution?

[@ShotByMyles]

That’s correct!

[@perhaar]

No. That is not the case. It is not as sharp as recording UHD when you zoom in to fill the frame. Try for your self. But that's not all together a bad thing. It takes a lot of the videoness out of the footage 👍

[@ShotByMyles]

Per Frits I think you’re speaking in terms of sharpness, but the question was ‘do you get better resolution’, and 5K is obviously more resolution / more pixels and more pixel density than 4K.

[@perrymorrisjr]

Obviously, 5K is more resolution than 4K and thus is the point, not sharpness.

[@davewamccallum]

@@ShotByMyles

[@raksh9]

This is a great visual explanation. I'd never thought of using the 5k anamorphic mode like this, although the lack of frame rates higher than 25 is rather limiting.

[@ShotByMyles]

Thanks! Agreed, I liked 30P to be able to slow it down a touch to smooth out the gimbal stuff, but I couldn’t be without the VFR mode :)

[@danielshepherd7306]

Awesome! Great in-depth tips!

[@ShotByMyles]

Cheers Daniel!

[@Concise_Focus]

Watching this has me leaning towards picking one up. Great video.

[@ShotByMyles]

Thanks Mitchell, all the best with your purchase!

[@AcuraAddicted]

Wow, didn't know about it, thanks! I definitely need more FOV out of my 15mm F1.7 to shoot in my car from the dashboard. Looks like this is going to be a great way out of that $1.5 grand expense for the 12mm F1.4 lense!

[@ShotByMyles]

Thanks for watching! Not sure I explained m the FOV very well (check out the pinned comment) but you’ll only gain FOV at the top and bottom of the usual 16:9 frame 👍🏻 Width-wise it’s the same as shooting 4K except for having more pixels packed in than 4K.

[@AcuraAddicted]

Shot by Myles Yes, and thank you for your response! I got that I only gain top and bottom. This is still very useful to my application. See, due to a very crammed space in my vehicle I am very close to my camera when shooting my vids. So I have a very little pan/zoom room to play with when switching frames. I already downsize my vids to 1440p anyway, but that extra space on top and in the bottom will add on to the available pan room, which is especially useful when I need to reframe myself so my hand gestures can be seen. Again, I’m very glad I stumbled upon your video, as I didn’t know about this before. Thank you!

[@ShotByMyles]

Acura Addicted cool, that sounds exactly the kind of thing this could be useful for, worth a test! Appreciate your comment, cheers, hope it works out for you!

[@buddyfx7026]

Solid video, my friend!

[@ShotByMyles]

Thank you :)

[@KippingMusic]

The files would probably melt my computer but I’ll have to try it :D

[@ShotByMyles]

I recommend proxies and a fire extinguisher ;)

[@billpancake]

Now then buddy! It appears you're in Leeds! I live in headingley! Nice shots man

[@ShotByMyles]

Yes indeed mate, Yorkshire 👊🏻

[@cyclingmaven]

Great video bro. Thanks.

[@ShotByMyles]

Thanks for watching Mark!

[@popohfilms]

Trying that 5K edit on our GH5 next.

[@ShotByMyles]

Its worth some experimenting, good luck! :)

[@TrillShatner]

Thanks bud. Very cool.

[@sutv6754]

very cool Myles. Thank You

[@ShotByMyles]

And thank you!

[@pieterpauwelbeelaerts5995]

hi, thank you for the great video. I am not a youtuber, but learn a lot here! What I am looking for is a way to use v log l with internal recording, because even in 400mbits the colors do artefact sometimes when I apply LUTS. the 200mbit 5K, because it is h265 and GOP, is way more efficient then a 400mbit all I, so in theory it would contain more data to play with despite being 4 2 0.

[@ShotByMyles]

That’s an interesting suggestion, I can’t say I’ve investigated the grading latitude to that extent but hope it works for you!

[@davewamccallum]

I use my GH5 to film butterflies in flight and then grab still frames to enlarge. This technique is very helpful. Thank you.

[@ShotByMyles]

Wow that sounds awesome... and difficult! Thanks, hope it works well for you, worth a test!

[@outbackatl]

I am curious to what lenses you used and which ones seemed to resolve the higher pixels better. Your footage looks great! Thanks for the Tutorial!

[@ShotByMyles]

Hi Scott, for the vast majority of shots I used the Leica 15mm f1.7, and the really grey wintry external shots were from the Sigma 18-35 via Metabones Ultra :) I’m not a great pixel peeper and I didn’t try a lot of lenses, but these two did a good job by my eye; the Sigma is known for its prime-like sharpness after all! Thanks for watching!

[@datamedicpr]

Grate thanks keep them coming

[@AlexLopez-iy4by]

Thank you for great demo and advice.

[@Inigopremiere]

GOOD ONE MAN!! thanks!

[@ShotByMyles]

Thanks 👊🏻

[@johnwetherall9161]

I've never actually looked at this option. Quite Clever, Ticks a lot of boxes for green screen as well, Nice fat 10 bit files with lots of resolution. I shot a whole bunch of full body shots a few months back and wish I had thought of this.

[@ShotByMyles]

Testing for green screen is a really good idea! It should be ideal in theory... thanks for your comment

[@ShotByMyles]

Hi John, I must point out that while it’s 10 bit the chroma sampling is 420, so that might actually not be ideal for green screen- I’m hearing it’s not perfect so something to bear in mind! The 4K All-i 10 bit 422 might edge this out for intensive green screen work...

[@LifeGQ]

You're a genius

[@trevorreedstudios]

Brilliant video. Thanks.

[@AaronMcFadden]

Wow! This is a game changer.

[@MicroFourNerds]

This is fascinating! I use a ton of vertical video, and I use this 4:3 technique to reframe my images on m43... Never even considered that we can also now do it with video. Very excited to try this out! May need better sd cards first 😂

[@ShotByMyles]

Thanks a lot, high praise from someone of your stature! Luckily the v30 cards aren’t TOO bad, but I’m way too cheap to buy v60’s to try the 400mbps All-I :)

[@mclarenf1V12]

I shoot this way ALL THE TIME! I love it!

[@skybizvideomediaproduction6167]

hows your workflow using this setup, I guess you need to be more mindful of framing etc. I read somewhere this is how some of the Arii cameras shoot to take advantage of the complete sensor

[@mclarenf1V12]

I keep it all centered in frame when shooting. Because my Mac 2016 does not natively play H265 then I have to ProRes all my files before I begin editing. But I use a 3840x1670 timeline which gives me a ton of flexibility and the clarity of the image is fantastic.@@skybizvideomediaproduction6167

[@M_freedomOfSpeech]

These results are amazing, I'm overwhelmed by the good quality you achieved, you have definitely given me an assignment to do, and the truth is that these lenses are spectacular and your editing also, thanks for sharing, I think today I will not sleep thinking how to start doing it! lol ....Thanks again!

[@ShotByMyles]

Thanks a lot Ricky that’s extremely generous of you! Good lenses do make a big difference :) all the best with your shooting 👊🏻

[@vervagump]

Great Video! Thank you! :)

[@ShotByMyles]

Thank you!

[@djlouviere1]

Great vid and info! Shot a few clips today but even my late model Mac Pro can't play these files back - they just stutter and stop. Copied to my ssd and no luck. Will try proxies in FCPX. Thanks for this!

[@ShotByMyles]

That makes me feel a lot better about my Mac, but sorry to hear you're struggling!

[@AlbondigaFilms]

Thank you!!!!!

[@Lanternamagika]

Absolutely great! But ... how do MFT lenses, which are designed for that small sensor, how do they actually cope with such much larger target?

[@ShotByMyles]

Thanks Daniele! The FOV stays the same along the width but increases vertically as it takes a readout from more of the sensor. The lenses cope fine with this as they’re designed to cover the whole sensor for photography anyway!

[@videoproduktion_rottweil]

Thanks can’t wait to try it

[@ShotByMyles]

Good luck, would be interested to hear your feedback!

[@braninpodolski7862]

Impressive! I still want to stick with canon for the auto focus and colors, but this camera is very tempting

[@ShotByMyles]

It’s got a lot to offer and to explore, but anyone would miss those Canon colours! And if you rely on autofocus the GH5 is no match for dual pixel AF unfortunately

[@photojoseph]

Well done

[@ShotByMyles]

Appreciate that from you, thanks!

[@photojoseph]

Shot by Myles what’s your twitter

[@EcBaPr]

great video thanks.

[@FullHDLuigi]

Great! Thanks man

[@alainluck]

Excellent video, have to try this 👍🏼

[@artistcharlesmaring]

Dig it... thanks for sharing your insight.

[@ShotByMyles]

Thanks for watching

[@Filmmaker809]

Beautiful work Myles. What lenses did you use with your GH5?

[@ShotByMyles]

Thanks a lot! This is mainly the Leica 15mm f1.7, and the really grey wintry external shots are from the Sigma 18-35mm f1.8 :)

[@Filmmaker809]

Thanks Myles. I have 18-35 too. I will check out Leica 15mm, I'm based in UK too, look forward to more work from you.

[@ShotByMyles]

Shark it’s a nice lens the Leica- really small and light, but I might not have got it if my gimbal could handle the giant Sigma! Cheers!

[@Filmmaker809]

Hey Myles, thanks for your reply. I have the Sigma 18-35mm too! I'll check out the Leica 15mm though! :)

[@BK42Cycles]

It is very interesting! Excellent video! You got me! Your new friend in Warsaw

[@ShotByMyles]

Thanks very much! Good luck with it if you try it out :)

[@BK42Cycles]

@@ShotByMyles Thanks buddy, I have no camera so far :) I hope I will be able to buy my first one soon... I am trying to decide between the GX5 and TX3

[@ShotByMyles]

Happy shopping! It's all about who's behind the camera either way ;)

[@philbarothomas]

nice your in leeds love it there

[@kathieovereem2555]

Thank you! Very helpful.

[@ShotByMyles]

Thank you for watching!

[@milanpodsedly3303]

There is a bit of misunderstanding as regard to resolution versus angle of view. Just to clarify. Regardless in what resolution you are shooting, horizontal angle of view does not change. GH5 always over-samples from full size of sensor. So, if you are using 6k recording method, camera will see exactly the same area horizontally, as if shooting stills or 4K or HD. What is however different, you will get higher resolution than shooting in 4k, approximately 5K. and larger vertical angle. What it means that you can zoom in horizontally in post about 20%, without loosing 4K resolution. Also oversampling from 5K to 4K should give you sharper image, but that should be tested on this camera, due to the fact when recording in 4K, camera already over-samples from higher resolution sensor.

[@ShotByMyles]

Thanks for your input, I realised the FOV could’ve been clearer when I was demonstrating the extra resolution, hopefully not too confusing! That was the reason I pinned the first comment on FOV :)

[@milanpodsedly3303]

Hi Myles I did some preliminary testing, wondering how can I sent you some still grabs. Here is what I did. I shot the test footage with my GH5 with Panasonic 12-40 Pro-lens. I shot the test at focal length of 25mm, at T5.6. (This lens is very sharp!). I set up focus charts on the wall, manually focused (using external monitor). First I shot the still image to see what full sensor (5184 x 3888) captures. First shot was shot at C4K, 4:2:2, 10 bit 400mb/sec. (4096x 2160). The horizontal angle of view was exactly same as on still picture. It means, that camera over-samples to C4K from full width of sensor. Before I go further, GH5 as most of other cameras are using CMOS sensor. RAW info from sensor has to be De-Bayered. What it practically means, if for example you have 4K sensor - actual resolution will not by 4K, but about 25-30% lower. If shooting in 4K Cinema - 4096 pixels horizontally, GH5 over-samples from 5184 pixels horizontally. (Factor 1.26). This should be enough to produce true 4K resolution. Next I shot in 6K mode 4:2:0 10 bit 200Mb/s. Did not move camera, angle of view was exactly same as previously. Again, it means that camera is over sampling from 5184 to 4992, this time the factor is only 1.04. We are getting 5K image in size but not 5K in actual resolution. On my last shot I moved the camera back. I calculated how wide I need to go, so after bringing the shot to edit timeline and zooming in, to get same size of image as in previous shots, by using only 4K area of image. I brought all three shots into Resolve - into C4K timeline. Results are disappointing. The sharpest image was achieved by shooting in Cinema 4K. Second shot I zoomed in about 1.3 times, to fill frame horizontally. Third shot (which was shot wider) I zoomed in to have same framing as in previous shots, using 4K area of 5K image. Second shot was comparably sharp but I already see some minor loss of sharpness. The 3rd shot (using 4K area from 5K shot) was not really usable, big drop in sharpness. I will do more tests. Using this method theoretically makes sense, practically it does not work. In next couple of days I will do more tests - some real shot comparisons.

[@ShotByMyles]

Milan Podsedly that’s interesting thanks, so 4K resolution carved out of C4K is sharper than from 5K? That makes a lot of sense, but obviously C4K doesn’t give you anywhere near the extra pixels to play with when you’ve done that.

[@milanpodsedly3303]

To grasp why 4K extraction from 5K video shot with GH5 is not going to be as sharp as when shot in 4K, you have to understand how oversampling and De-Bayering works. Let's say you have 4K sensor. It has approximately 4 thousand photo-sites horizontally. 50% are green sensitive 25% Red and 25% Blue sensitive. Green photosites only send Green channel information, not Red and Blue, Red sends only Red channel information, not Green and Blue and so on. To recreate a picture, software needs to guess what would be Red and Blue information for Green photosites, and for Red and Blue photosites. Software takes the information from surrounding photosites and makes an educated guess, what missing values would be. This process is called De-Bayering. After De-Bayering we have 4 thousand pixels each containing full information for each R,G,B channels. Recreating missing info still requires some guessing, therefore we can estimate that software can be only 70-80% accurate. Therefore 4K sensor will have 4000 pixels horizontally, however effective sharpness will only be somewhere around 3.2 - 3.5K. When ARRI came with ARRI Alexa - this was HD (2K) Camera with 3.2K sensor for exactly same reason. By over-sampling image from 3.2K sensor to 2K video, they acheived true 2K resolution. Same thing applies to GH5. It has approximately 5K sensor. By oversampling to 4K, Panasonic made sure that 4K image has 4K resolution. If you are shooting 5K open gate, your 5K image will not have 5K resolution, only approximately 4K. Yes it will have 5K pixels horizontally, but effective resolution will only be 4K. Now if you will extract 4K image size from your 5K video - it is not going to be as sharp, as if you shoot 4K. As a professional cinematographer I do not see any advantage of shooting in 5K open gate mode. Frame it right when you are shooting. Also 5K mode does not give you option of shooting in 4:2:2. You want the best quality -shoot C4K 4:2:2, 10 bit highest bit rate. If you are not worried about best resolution, go ahead shoot 5K with GH5.

[@ShotByMyles]

Milan Podsedly thanks for the input. I don’t recall my exact words in the video but I hope I didn’t say that 4K extracted from 5K footage would be as sharp as oversampled 4K! For sharpness I’d compare 5K footage to 4K footage, and if you have no interest in outputting 5K or can’t view it on your monitor, then a fairer comparison would be to downscale the 5K to 4K and then compare. Cropping in helps for reframing in post as I discuss here, but if ‘get your framing right’ in camera is an option then I’m not sure I’d use 5K either. This is more relevant to people that see value in reframing / smooth pans and tilts and rotations done in post than a cinematographer on a controlled set with all the toys. Interesting that you say 5K only gives 4K resolution- isn’t the 5K oversampled as well? The 5K mode gives you about 18 million pixels but it’s a 20MP sensor. Cheers

[@bosekaspathy]

Excellent. Thanks

[@camcamwatt]

Great video! Dope intro. I just picked up a GH5 s. What an amazing bit of kit 🙏 gday from Melbourne

[@ShotByMyles]

Gday indeed! Cheers Cameron, enjoy your new camera!

[@mariushaugan]

Keep in mind that the GH5S is "only" 4K Anamorphic/Photo, so you can do a 4K 4:3 Open gate, but not the full 6K 4:3 Open gate of the GH5

[@camcamwatt]

Marius Haugan ok! Thank you mate. Is that because the lower pixel due to the dual native ISO

[@mariushaugan]

@@camcamwatt correct. The S is a 12mpx sensor if I recall correctly

[@camcamwatt]

Marius Haugan yep 11. Something. So even in video mode it effects it. Interesting thanks again mate. 👌📸📽

[@robjamesewing]

This is awesome... I had no idea that this was possible. Do you always shoot in this format now or just in select scenarios?

[@ShotByMyles]

Thanks Rob! I’d consider this when I know I’ll need to reframe in post but my weedy 2015 MacBook Pro couldn’t take too much 10bit 5K!

[@lightstruckproduction2325]

It's all about getting the best picture quality from your footage. 6K of course is better than 4K. But you do that by halving your bitrate. Bitrate is an equally important part of the equation, I believe. Are you actually getting sharper, cleaner footage using the anamorphic mode with a higher resolution, but lower bitrate?

[@lastfrontier]

Can you tell us more about the dance shot at the end? What lens did you use? Was it also shot in anamorphic mode? Where can we see more from that setup? Thanks

[@ShotByMyles]

Sure, that part wasn’t actually anamorphic, I was testing the GHalex LUT and I’m pretty sure those shots are all in 8-bit HD at 100P! It was the Leica 15mm f1.7 on a Zhiyun Crane v2, more of that sequence will be shown in the next video I’m planning to do which will be a quick look at the LUT :)

[@TopCrinkly68]

Fantastic,very interesting,thanks, just got my gh5 had cannon these last ten years,Olympus before,. Well what a bit of kit, spent the last 3weeks learning the menu!! So exciting,don’t know what to video in?? Need a new computer now looking at iMac 27inch 3.8, had windows since it was invented, had enough of it now, Thanks

[@ShotByMyles]

Much appreciated Graham! If you mean which picture profile, I would try out Natural at first and see how you get on with it. All this was filmed in Cinelike-D but it takes a bit work getting the colour and everything how I want. All the best for your computer hunt!