Canon R5C Clog2 request

[nice97]

Hi everyone,

with the recent announcement of the Canon R6V, which now supports internal compressed CLog2 recording, I was wondering why Canon still refuses to implement compressed CLog2 on the Canon R5 C. It feels a bit strange, especially considering the R5C belongs to the Cinema EOS line.

Do you think it would be possible to submit a feature request to Canon for this?

Thanks!

[AtticusLake]

I'm frustrated by this too; I would love to have Log 2 on my R5C.

But it seems you're assuming that Log 2 is something that could be added to existing cameras -- i.e. in software.  Do you have a basis for this?

In general, any kind of processing on live video simply can't be done in software -- it needs dedicated hardware.  If you want to see why, calculate the amount of data you would be handling.  8192x4320x60x12 = 25 gigabits per second; or over 2 billion pixels per second.  That's ludicrous.  If you want to do a LUT in software, for example, think about how many steps are needed to do 3-D interpolation on each pixel, then multiply by 2 billion per second.

So, does the R5C have some kind of programmable gamma curve processing hardware, that could in theory be programmed to do Log 2?  I have no idea. 

[kvbarkley]

The question is whether the DIGIC chips are fpga's that are programmable (or have a section that is programmable) and I don't have an answer for that. 

[kvbarkley]

Feature requests are made on the Canon USA website. Look for the little (+)feedback button.

[Binod01]

The Canon R5 C is still an incredible professional-level camera, but many of us would love to see C-Log2 added through a future firmware update. As a professional color grader, I know how valuable the extra latitude and 15+ stops of dynamic range can be when pushing footage in post.

Considering that the R5 C is still more expensive than the newer R6 Mark III and R6 V, it would make sense for Canon to bring C-Log2 to such a capable cinema-focused camera. Most R5 C owners invested in this camera for professional work and are comfortable with advanced color grading workflows. I’m one of those users, and I sincerely hope Canon considers adding C-Log2 support in a future firmware update.