08-07-2024 09:36 AM - last edited on 08-08-2024 09:05 AM by Danny
I use Fv with auto ISO, auto aperture, auto shutter speed and ETTL flash.
before Feb, include Feb, the auto f stop can be correctly set as f2.8 automatically.
but from Mar, it always set f4 as priority, and ISO often go to 6400.
today, 2024-Aug-07, I went to a shop to try another two R6 Mark II,
what I found is, if the firmware version is 1.1, auto aperture works normal, but if the firmware version is 1.4, the auto aperture will be f4 for most of the situation, except very low light, it can be f2.8
08-08-2024 12:41 PM
Yes that's exactly how E-TTL works. It always Fill Flash when the camera is NOT set to Manual Mode. In Manual Mode its treated as Main light.
09/26/2024: New firmware updates are available.
EOS R5 Mark II - Version 1.0.1
EOS R6 Mark II - Version 1.5.0
07/01/2024: New firmware updates are available.
04/16/2024: New firmware updates are available.
RF100-300mm F2.8 L IS USM - Version 1.0.6
RF400mm F2.8 L IS USM - Version 1.0.6
RF600mm F4 L IS USM - Version 1.0.6
RF800mm F5.6 L IS USM - Version 1.0.4
RF1200mm F8 L IS USM - Version 1.0.4
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