What Do You Want No Film School to Test on the Canon R5?

Production models of the Canon EOS R5 and R6 have arrived at No Film School. What do you want us to test? 

No Film School has received production models of the Canon EOS R5 and R6 cameras. We will be putting both cameras through a barrage of different tests and sharing our thoughts and findings along the way.

But we wanted to ask what you, the No Film School community, what you want to see tested or know about specifically on either camera. Below are just some of the topics that No Film School plans on exploring. 

No Film School planned coverage:

  • Initial impressions of the R5 and R6 
  • Comparison between and the R5 and R6 
  • R5 video formats
  • R6 video formats
  • When/how does the R5 overheat
  • When/how does the R6 overheat 
  • 8K RAW workflow 
  • Has the on-camera audio improved from the EOS R 
  • In-body image stabilization 
  • Autofocus
  • The difference in R5 High Quality Modes

If there are other topics you want to know more about, let us know in the comments below (and not on Facebook). We will be reading the responses until Friday, July 24, 2020, so post away until then.      

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Your Comment


Possible usable dynamic range difference between C-log and raw video.

July 20, 2020 at 5:29PM


Rolling shutter is a big one.

Probably internal color shifts. Magenta tones and the like. (Though Canon is usually good about that).

Usable Dynamic Range

Skin tones

Low-light (SN ratio) especially between the two models

July 20, 2020 at 5:36PM


If you are doing a comparison, put it up against the Arri Alexa. Let's see..

July 20, 2020 at 6:08PM, Edited July 20, 6:08PM


High frame rate losses in quality
IPB vs ALL-i
ISO (native vs high/low ISO)
Best LUTs
Battery Life
4K vs FHD
External recording possible to Samsung External HDs?
Dynamic Range (Neutral / C-Log / RAW)

July 20, 2020 at 9:04PM

geoff webb

Some 4K clips in the mode that is not supposed to overheat. I am curious if it is line skipped or pixel binned. Line skipping has lots of aliasing so I hope we don’t see any. Also, would love to see comparison of all the record modes. I am also curious what crop recording modes that are available. And lastly how does the dual card recording work? Does it record a proxy potentially for every mode if desired? Awesome you guys have one!

July 20, 2020 at 10:27PM


-Rolling shutter in video modes
-EVF lag in photography mode
-4K 24/25/30 image quality in regular (non HQ) mode
-With what focal distances do you get IBIS wobble in the corners?


July 20, 2020 at 10:48PM, Edited July 20, 10:49PM

Johannes Abeling
Photographer / videographer


Try to cool the Camera down in a Fridge, after overheating.

Try the best adapter for EF PL and some other Ones :D

Try the smallest Rig vs. the biggest for overheating

Uh and Maybe old Battery vs the New ones :D

Thank You Guys :D

July 21, 2020 at 2:29AM, Edited July 21, 2:29AM


please test :
- Color fidelity with different color chart
- Dinamic range in different iso raw
- Raw in different strong WB unbalancing to see how manage it in color channel
- test on saturated highlights
- test on saturated colors on warm side
- test with different skin, how manage skin tone.
- different temperature operations, when you work on warm and cold environment (documentary work often is hard situation for many tools)
- battery duration with all enable (ibis, autofocus, lens stabilization, full resolution recording 8k), continuus and random on /off work. without review video.
- panoramic test to see RS and understand how can be possibile to move faster this camera
- test flash to see how manage different resolution scaling
- test raw recording at different resolution to see cropping of sensor and how it work
- test faster fps recording to see how sensor work at fastest fps, recently i saw that most of photo cameras not work at same DR when you up fps, also if you not change iso, iris, compression etc

just to start :-D

July 21, 2020 at 2:35AM, Edited July 21, 2:38AM

Carlo Macchiavello
Director (with strong tech knowledge)

Could you please check the video quality and performance of using an external recorder such as Odyssey 7Q+ or Atomos Shogun.

It would be really nice to know if recording ProRes through the external recorder can help with the overheating time limit, the huge file size of recording in camera etc...

Finally, it would also be good to know if the 4K oversampling mode makes any difference to the clean HDMI for the external recording. And in general if there are any differences in quality between recording externally vs in-camera.

Looking forward to your review!

July 21, 2020 at 5:40AM

eldad eitan

No thanks
Two reasons. Firstly if it starts spontaneously combusting after half an hour then it is useless to me anyway and I will stick to BMPCC thanks
Secondly after reading your ridiculous article about gone with the wind I have just about stopped reading your articles anyway

July 21, 2020 at 6:30AM


Something usually overlooked, and Canon is known to not be good at - Cinematography Tools!

* Exposure Tools - Zebra, False Color, Waveform.
* Peaking / Focus Assist.
* LUTs.
* Frame guides.
* How easy it is to change basic settings (ISO, shutter, iris), and options for customizable buttons.

**Also: how well does it fit on a handheld gimbal (like the Ronin-S) with an EF adapter and a typical lens like 16-35.

July 21, 2020 at 7:00AM

Ariel Hadar
Producer, Director of Photography

Maybe some commentary on the different bitrates for the different shooting modes (8K, 4K, High Quality 4K, etc.), so we have an idea about how much storage media we're going to need (i.e. what size cards to buy for our purposes). This will also depend on the quality of the different modes, like if one mode is crap then the bitrate won't matter since we won't use it).

Also, how well the H265 codec plays with different softwares, namely Davinci Resolve and FCPX.

Thank you!

July 21, 2020 at 12:35PM

Harlan Rumjahn
Low-level government official

- Dynamic Range and its dependency on ISO test.
- ISO noise test.
- Color science test, especially on different skin tones.
- How fast can we shoot after switching the camera on.
- EVF Lag test.
- Buffer test purely with SD Cards only in both cases. Another puffer test on R5 with CFExpress only and CFExpress+SD Card inserted.
- IBIS performance with Lenses that has no optical stabilization.
- Very deep Human Eye AF test with poor lighting conditions and fast-moving people/kids.
- Mechanical shutter test (without electronic first curtain): what is the real FPS instead of 12?

July 22, 2020 at 3:40AM

Krisztian Boros

Test of Focus Peaking and Focus assist, especially when you shoot macro stills with very shallow DoF.

July 22, 2020 at 3:51AM

Krisztian Boros

Thank you for asking us!

- Overheating while recording to SSD not a external recorder like the ATMOS?
- Overheating while using a external battery solution
- IBIS with RF vs EF Lenses using Canon Converter.
- EVF lag in photography mode
- Low Light Noise
- Low Light Autofocus capabilities
- Difference in Noise at high temps vs normal temps.

Looking forward to your review, will help me make a decision about purchasing this camera.

July 22, 2020 at 5:29AM


Can we have the option to download sample RAW files?

July 22, 2020 at 11:31AM

Tom Frenette
Cinematographer / Producer / Editor

> I'd like to know more about its capabilities regarding usage for filmmaking and cinematography: zebra patterning?, focus peaking?, dynamic range, false color, waveform, low light capabilities (noise?)

> Are there artifacts?: focus rollof, chromatic aberration, blooming, moire, etc.

> about shooting in raw format: workflow, quality, etc.

> other shooting formats

Thanks in advance!

July 22, 2020 at 11:50AM, Edited July 22, 11:52AM


Rolling shutter with different resolutions and modes.

DEFINETILY recording times with an external recorder before overheating!

July 22, 2020 at 2:14PM


Hi, Rolling shutter (readout delay) , DR & Highlight roll-off.
Apologies (off topic), but something like this would also be great for the Red Komodo. Cheers.

July 23, 2020 at 7:56AM


It would be great if you could do a one day shoot, with perhaps two actors and scenes indoors and outdoors... with natural lighting + manipulated (studio?) lighting... basically run it through the paces on an actual day of shoot, and test out both the shoot experiences (dynamic range, rolling shutter, set up time, accessories needed etc etc) and the post production workflow with the footage. Ideally a mix of 4K 24, 4K 60, 4K 120 and 8K RAW footage, as the story may demand.

July 23, 2020 at 10:18AM

Janmejay Singh

Definitely the pre-amps...
Also IBIS with EF lenses.

July 25, 2020 at 4:34AM, Edited July 25, 4:34AM


There is a video on youtube that Matti Haapoja made testing the EOS-R5 with the IBIS and different levels of stabilization with IS lenses and electronic stabilizers. I am not sure I can provide the link as I am a new user but the video is titled "Cannon R5 Overheating & IBIS Wobbles" Hope that helps.

July 26, 2020 at 6:00PM, Edited July 26, 6:44PM

Nick Straub

I know I am too late but hopefully this can be answered in the future somehow.

It would be cool to hear how quiet the electronic shutter is to the human ear when you're in the middle of shooting a wedding or in a room where a similar situation could be set up. DSLR's are super crunchy but the electronic shutter is supposed to be near noiseless.

That and battery life are the only real world tests I can think of that haven't been overly mentioned already.

Obviously everyone wants to know what the camera does when it overheats and how long of a cool down period it needs afterwards.

July 26, 2020 at 5:56PM

Nick Straub