EOS 5D Mark IV Firmware Version 1.0.4 牙膏廠再度發威...有夢最美

https://www.usa.canon.com/internet/portal/us/home/support/details/cameras/dslr/eos-5d-mark-iv?subtab=downloads-firmware

All video output will still be 8-bit.
Sampling for DCI 4K will be increased to a 5632 x 2970 pixel sensor area resulting in a 1.27x Crop factor.
Sampling for UHD will be from a 5472 x 3078 pixel sensor area resulting in a 1.29x Crop factor.
Both modes are accurately down-sampled to their final resolutions.
Existing frame rates will remain the same.
The current 1:1 4K sampling mode will remain an option for situations benefiting from the 1.78x Crop factor.
There will also be new full-sensor 3K modes added including 60fps and HDR 24fps.[…]
FullHD 1080p will also use this 3K full-sensor mode with down-sampling for a noticeable improvement in perceived resolution.
FullHD 1080p will also receive a modest frame rate boost to 72/75fps.
The EOS 5D Mark IV will gain the XF-AFC file format at 120Mbps (4:2:0) and 200Mbps (4:2:2). Both formats should require low enough data rates to accommodate UHS-I U3 type SD Cards.
Reports relating to a possible service job for the 5D Mark IV are the result of the heat sinks on current units not performing well in some environments when used with the newer firmware. […]
The newer firmware will still work in non-serviced cameras, but this may result in premature temperature warnings.

牙膏廠再度發威