After shooting the R5 & R6 in YNP/GNTP for the last 16 days, I want to add a few things to the previous posters list (below)
- Much better battery life
- "Always ON" EVF and ready to shoot (I know this contradicts item 1)
- Faster, smoother, higher resolution EVF for tracking action (should be part of a 1dx comparable MLC)
- Assignable audio for each frame capture of the electronic shutter vs flashing frame which I find distracting
- Slightly smear AI for the "groundbreaking AF" and better support for eye tracking with long lenses.
- AF ability to identify and focus through obstructions on the eye (grease, tree branches, leaves, etc).
- Better dynamic range and handling of dark areas for high contrast, bright situations.
I will add, I really liked shooting with the R5 and have no regrets selling my 1dx II. I am not quite as happy with the 100-500 when used with at the 1.4x TC. Extending the lens to 300 mm before adding the converter and limited to 420-700mm can be an issue with animals on the move and changing distance. I kept my 100-400 II with the intent to sell after testing the 100-500. I am very happy with the performance of the 100-500, but feel I need a second camera with my 100-400 II when I am using the 100-500 with the 1.4x TC. In my view, the ability to use 500-700 mm on the 100-500 is awesome, but it comes with the price of flexibility on the 100-420mm range when shooting with the 1.4x TC.
"My guess is minimum specs as R5 but in 1D body ( AF-On smart controller buttons, dual CFe slots) with:
- Global shutter (no mechanical shutter). Rolling shutter artifactys significantly better than current electronic shutter
- 45mp sensor with IBIS (IBIS can be turned off)
- 30fps electronic shutter burst with full tracking - perhaps with buffer ie not unlimited
- ~20mp on-the fly over sampled (no lossy compression/S-RAW) at full 30fps unlimited buffer. Best of both worlds.
- Dual Digic X to spread the heat generation and generate less heat per CPU
- Unlimited 8k cinema raw lite internal recording
- 6K/60. 4k/120 unlimited no crop internal recording.
- No line skipping/pixel binning 4k/6k modes
- 29:59 recording limit
- Clog3
- minimum 16fps using anti-flicker depending on frequency of the flicker lighting
- AF in very low light (quad pixel makes sense but would be equivalent to a 180mp sensor!)
- pixel shift high res stills
- 9+ megadot EFV with no blackout and fast refresh rates (at lease 120fps). >0.5" in size
- full sized HDMI 2.1 port (48G) or thunderbolt 3 USB-C or both
- Mini XLR audio option
- Ethernet port
- Flippy screen included. Won't be great for portrait recording but still needed I think. Weather sealing will need to be excellent though"