Design of the EOS-R. An interview with product development manager


Jul 28, 2015
I used Google translate which seemed OK:

Some interesting points that I found:
  • The number of pixels itself is the same as EOS 5D Mark IV, but the sensor itself is newly developed...It is raising ISO sensitivity more than EOS 5D Mark IV.
  • Digic 8 processor: "raised the processing performance drastically than before. In addition to becoming able to realize the function of the digital lens optimizer in real time at the time of attaching the RF lens, it contributes also to the performance improvement of the dual pixel CMOS AF. The performance of noise reduction has also been enhanced, and compared with EOS 5D Mark IV, ordinary ISO sensitivity has been increased by 1/3 step. "
  • When installing the [IBIS] mechanism inside the body, you must overcome the challenges such as size, cost, heat generation...However, since I fully know the merit of camera shake compensation in the body, I will consider it including it. [so it sounds like they have not solved this problem]
  • First of all, I will introduce EOS R as a well-balanced middle class, but of course I am thinking about the higher and lower models than that
  • We are assuming 8 K as an EOS R system.

It even includes a roadmap - low on detail but a string of f2.8 lenses coming out in the next 2 years!
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Reactions: Sharlin


CR Pro
Dec 26, 2015
Turku, Finland
Nice find!

I presume it’s going to take an eventual dual DIGIC 8 body to raise Servo AF fps to somewhere closer to 10. As great as DPAF is, it obviously is much more data to process than a discrete PDAF system with a few dozen AF points. And what’s worse, the bus is shared with the actual image processing pipeline which in a mirrorless also has to keep data flowing to the EVF...

Kit Lens Jockey

CR Pro
Nov 12, 2016
Very interesting to read that it is not actually the same sensor as the 5D4, just the same resolution. Here we all were thinking that they just phoned this one in and took the mirror out of a 5D4... Seems like they put more effort into it than we thought.


EOS 5D Mark IV
Apr 25, 2011
They've probably redid the microlenses (they have a patent on that) to adapt them to a shorter flange distance.