There is very little new information coming around about the Canon EOS R3, the last being the confirmation of the 24mp resolution sensor.
A small bit of information I did recently receive was about the blackout and/or lag that is present in the Canon EOS R5 and Canon EOS R6 EVF when shooting still images. It's not a huge deal for a lot of shooters, but I have seen various critiques about the lag present in the Canon EOS R5 being a bit annoying in certain shooting situations.
I have been told that the Canon EOS R3 will not experience any issues with blackout and/or lag. The new image sensor in the Canon EOS R3 likely has a much faster readout than that of the EOS R5 or EOS R6.
The Canon EOS R3 is expected to be announced in September 2021.
Canon EOS R3 Specifications:
- 24mp backside illuminated image sensor
- Multi-Controller & Smart Controller
- Vari-Angle Touch Screen
- NEW accessory shoe
- Wifi 5GHz
- High speed 30fps electronic shutter with AF/AE tracking + RAW shooting at this speed
- AF down to -7.0 EV
- 8 Stops Coordinated Control IS with Optical IS and In-Body IS
- 4K Canon Log3
- Oversampling 4K
- Internal RAW video
- Inclusion of cars and motorbikes in AF tracking technology
- RAW internal movie recording
- Speedlite shooting with electronic shutter
- The same weather sealing as the EOS-1D series
- LP-E19 Battery
- Dual card slot SD & CFExpress
It's definitely better on the R5, but some sports shooters that I have spoken to don't think it's good enough, especially the lag. Most just say that it feels "off".
it’s very noticable on my R and along with the (lousy) FPS with autofocus one big weak point of the R.
That isn't guaranteed. Sony have reserved the stacked sensors to the A9 and A1 line so far and I fully expect Canon to do the same to differ the pro bodies from the R5 and R6. If you need blackout free, high FPS, and low latency; then go buy the R1 or R3. If you need a general do everything camera, buy the R5 or R6. Mirrorless bodies are differentiated in many more ways than we seen in DLSR, now the high end can have faster startup times, lower latency, no blackout, higher resolution and faster EVF's, and gosh knows what else to differentiate them from the 5-series and 6-series.
This might (at last) enable action/sports photographers to switch to mirrorless...
except for the pricing
On the other hand, it would mean a new image sensor for the R5 instead of reusing and old R1 sensor.
I have a feeling that the R3 will essentially be the "mirrorless 1DX Mark III", inheriting that camera's "pro sports shooter" role. Further, I bet the R1 is in the works and will be Canon's "megapixel monster", likely with between 75 and 85MP.
It's going to be interesting to see what happens.... And potentially really hard on my credit cards!
Of course, with the better battery, it might be possible to have the camera sleep a lot less often. But it would still be great to see improvements.