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Canon's latest 63MP full-frame Dual Pixel AF sensor leaked

Canon's latest 65MP full-frame Dual Pixel AF sensor leaked

A data sheet detailing a new full-frame Canon sensor, boasting 65 megapixels and Dual Pixel AF, has leaked online – and speculation is running rampant about what it is and what it means for the company's upcoming cameras.

The Canon EOS R (opens in new tab) family, in particular, has been a point of focus for the pundits. With persistent rumblings that the Canon EOS R successor (opens in new tab) will be a high resolution model, said to be in the region of 70MP, it's easy to conclude that this 63MP chip will be the one that finds its way into the new camera.

However, a number of factors suggest that this sensor isn't up to spec for the next EOS R – and, in fact, may not be for a commercially released camera at all. (And, as with any leak, it should also be remembered that it may not ever see any form of release – and may not even be true – until officially confirmed by the manufacturer itself.) 

In its analysis of the leaked document and specs, Canon News (opens in new tab) focuses on four key factors that point to this sensor not being a logical fit for the rumored hi-res Canon EOS R. 

Not a commercial sensor?

Firstly, the read noise is said to be no better than a Canon EOS 80D (opens in new tab) sensor, but much worse if that sensor were made an equivalent size. "The read noise of this is far worse than for instance an 80D sensor scaled.  At worst case, this sensor should be no worse than the 80D sensor, as it's the same pixel pitch as the 80D sensor."

Secondly, the dynamic range falls below both the Canon EOS 5D Mark IV (opens in new tab) and 80D, being on par with the Canon EOS 6D Mark II (opens in new tab). "The DR matches the 6D Mark II DR curve and not the current generation 5D Mark IV or even 80D DR curves… This would have the same DR as the 6D Mark II from ISO 100 to ISO 3200".

Thirdly, its burst mode is woefully slow. "5.2 fps at 12 bit depth means it would be around 1.3 fps at 14 bit assuming it's using slope ADC's (which canon uses)," notes the site. "Not only that but DPAF takes around twice the read time so if you want AF you're looking at .6 FPS or a glorious 2.6 fps in 12 bit ('speed mode')".

Finally, rolling shutter would be an enormous issue with this sensor. "… with a 188ms sensor read time (in the 'speed mode' no less), it will be at least twice as bad as the EOS R in full sensor readout electronic shutter."

The data sheet for the 63MP sensor, the Canon 35MM63MXSD

All in all, this document appears to describe a sensor designed for non-commercial release – such as Canon's sensors for industrial, machine vision and scientific applications (opens in new tab). Of those, neither the 120MXS or 3U5MGXS were used in a Canon camera, while the 35MMFHDXS_A powers the video-oriented Canon ME20F-SH Multi-Purpose Camera (opens in new tab)

Given some of the stunted specs, Canon News even suggests that this could be an older Data Sheet for an unreleased or since-scrapped sensor. Either way, it seems unlikely that it has any relation to the purported 70MP EOS R successor.

Read more:

New Canon EOS R due in 2019 with 70MP sensor, IBIS, dual card slots (opens in new tab)
Plenty of Canon EOS R rumblings among the best camera rumors (opens in new tab)
Find out which is the best Canon camera (opens in new tab)

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The editor of Digital Camera World, James has 21 years experience as a magazine and web journalist and started working in the photographic industry in 2014 (as an assistant to Damian McGillicuddy, who succeeded David Bailey as Principal Photographer for Olympus). In this time he shot for clients as diverse as Aston Martin Racing, Elinchrom and L'Oréal, in addition to shooting campaigns and product testing for Olympus, and providing training for professionals. This has led him to being a go-to expert for camera and lens reviews, photographic and lighting tutorials, as well as industry analysis, news and rumors for publications such as Digital Camera Magazine (opens in new tab)PhotoPlus: The Canon Magazine (opens in new tab)N-Photo: The Nikon Magazine (opens in new tab)Digital Photographer (opens in new tab) and Professional Imagemaker, as well as hosting workshops and demonstrations at The Photography Show (opens in new tab). An Olympus and Canon shooter, he has a wealth of knowledge on cameras of all makes – and a fondness for vintage lenses and instant cameras.