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Canon EOS R5 Exterior 8K ProRes RAW Dynamic Vary Lab Take a look at – 8K With out Overheating


Canon EOS R5 External 8K ProRes RAW Dynamic Range Lab Test - 8K Without Overheating

Considering a fast dynamic vary take a look at of the brand new Canon EOS R5 8K exterior ProRes RAW recording mode of the Canon EOS R5 utilizing an Atomos Ninja V+? And as a bonus, outcomes for the brand new Canon Log 3 mode are thrown into this text as effectively. So please sit down and skim on …

This isn’t one in every of our typical lab checks because the Canon EOS R5 has already obtained our prolonged lab take a look at therapy, which you’ll be able to learn up on right here. Again then inside 12 bit Canon 8K RAW in addition to inside 10 bit 8K Canon Log (H265) recording was already potential.

In the mean time, firmware updates have introduced Canon Log 3 to the Canon EOS R5 in addition to exterior 8K ProRes RAW recording by way of HDMI utilizing the brand new Atomos Ninja V+. Sufficient causes to shortly retest the dynamic vary with these new choices.

Dynamic vary of exterior ProRes RAW 8K recording

In case you aren’t aware of how we take a look at dynamic vary of cameras, take a look right here.

A fast phrase on dealing with the 12bit 8K ProRes RAW information in postproduction: on an 8K timeline in PremierePro our NVIDIA GeForce RTX3090 graphics card which is on mortgage from NVIDIA (thanks) had no points dealing with the information, GPU reminiscence hovered round 10-12 GB, the load round 16%. As quickly as you begin to add noise discount, reminiscence utilization and cargo begin to skyrocket – which is to be anticipated. Primarily as a result of GPU reminiscence, I like to recommend the RTX3090 card should you plan to complete in 8K.

The Canon EOS R5 related to the Atomos Ninja V+. Picture credit score: CineD

Plugging the Canon EOS R5 by way of HDMI into the Atomos Ninja V+, the digital camera is instantly acknowledged. Curiously sufficient, Canon Log 2 is displayed because the Gamma – we’ll use that later in PremierePro to carry RAW right into a log house for additional evaluation.

Digicam data as displayed by the Atomos Ninja V+. Picture credit score: CineD

On the digital camera itself, the bottom ISO worth that may be chosen is ISO800 if the output is about to “HDMI RAW”. That is attention-grabbing, as the inner RAW recording has ISO400 because the lowest ISO. ISO400 can also be the bottom ISO worth for inside H265 Canon Log recording. For Canon Log 3 the minimal ISO worth jumps as much as 800.

Thus far so good. Creating the ProRes RAW information on an 8224×4336 (17:9) timeline in PremierePro utilizing Canon Log 2 because the gamma curve yields the next waveform plot:

8K ProRes RAW on an 8K timeline – the waveform plot of our Xyla 21 chart. Picture credit score: CineD

About 12 stops will be recognized above the noise ground and a touch of a thirteenth cease inside. As will be seen from the waveform, decrease stops (i.e. shadows) are very very noisy. Curiously, the inner 8K RAW recording (at ISO400) is displaying much less noise, see our lab take a look at right here.

IMATEST confirms this outcome, very excessive ranges of noise are calculated for the decrease stops (displayed within the lowest of the three graphs under). Therefore, the dynamic vary reads solely 10.4 stops at a sign to noise ratio of two (SNR) and 11.8 stops at SNR = 1. However, extra stops will be recognized inside the noise ground (above the blue 11.8 line within the center diagram). Therefore, if you’re effectively versed in postproduction, these extra stops will be “excavated” from the noise ground.

IMATEST outcome for exterior 8K ProRes RAW at ISO800 for the Canon EOS R5. Picture credit score: CineD

Simply to provide you our present benchmark for dynamic vary, the ARRI Alexa Mini LF (full-frame) digital camera reads 13.5 stops at SNR = 2 and 14.7 stops at SNR = 1 in ARRIRAW. That’s 3 stops extra, see our mini-lab take a look at right here.

Yet another phrase on overheating: throughout exterior 8K ProRes RAW recording by way of HDMI, if “Standby: Low Res” is about to “On” within the digital camera menu, no overheating happens anymore (whether it is set to “Off”, the well-known overheating limits apply).

Sadly, exterior recording is triggered by way of the Atomos Ninja V+. On the digital camera, the set off button is inactive.

Dynamic vary of inside 8K H265 recording in Canon Log 3 at ISO800

As talked about above, since firmware 1.3 the Canon EOS R5 permits additionally Canon Log 3 because the second LOG profile subsequent to the initially accessible Canon Log. The preliminary C-Log profile confirmed an odd conduct of “reducing off” the noise ground, therefore limiting the dynamic vary severely. Nicely, C-Log 3 sadly is doing the identical.

Right here is the waveform plot of 8K H265 Canon Log 3 at ISO800 – about 11 stops will be recognized, in addition to a weak twelfth cease.

Waveform plot of the Xyla21 chart with inside 8K H265 C-Log 3 recording at ISO800. Picture credit score: CineD

IMATEST confirms this, 10.1 stops are calculated for SNR = 2, and 11.4 stops for SNR = 1:

IMATEST outcomes for inside 8K H265 C-Log3 recording at ISO800. Picture credit score: CineD

In comparison with the outcomes for inside C-Log (10.0 stops at SNR = 2 and 10.8 stops at SNR = 1) we do get higher readings, however not a lot. Sadly, these outcomes are on the low finish for a full-frame digital camera. The Panasonic S5 for instance reads 12.1 stops at SNR = 2 (V-Log at ISO640 in UHD decision), the Sony A1 exhibits 11.9 stops at SNR = 2 for inside 8K H265 recording (S-Log3).

Switching the Canon EOS R5 to 4k DCI full-frame recording improves the outcomes for Canon Log 3, attributable to downsampling. 10.8 stops at SNR =2 and 11.8 stops at SNR = 1 are calculated by IMATEST. However, the Canon EOS R5 is greater than 1 cease behind its friends by way of dynamic vary within the mirrorless full-frame enviornment.

Abstract

8K ProRes RAW exterior recording by way of the Atomos Ninja V+ opens up limitless RAW recording capabilities on the Canon EOS R5, with out overheating points. That may be a huge enchancment.

Nonetheless, exterior ProRes RAW information are very noisy, actually “RAW”. When it comes to dynamic vary (as anticipated), the identical outcomes as with inside Canon RAW recording are obtained – shadows are a bit much less noisy with inside RAW however very comparable values are obtained on the sign to noise thresholds of two and 1.

The brand new Canon Log 3 inside Log gamma curve improves the dynamic vary with inside H265 recording just a little bit however cuts off the noise ground as effectively. However, I totally suggest utilizing Canon Log 3 should you want a extra storage-efficient inside recording answer.

Therefore if you wish to totally exploit the capabilities of the Canon EOS R5 by way of dynamic vary and limitless recording instances with out overheating, there isn’t any means round utilizing exterior ProRes RAW recording by way of HDMI on the Atomos Ninja V+.

Have you ever shot with the Canon EOS EOS R5 already? What are your experiences? Please tell us within the feedback under.



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