11-10-2020, 10:10 PM
(11-10-2020, 10:01 PM)Klaus Wrote: So the manual doesn't state anything regarding incompatibilities.
A malfunctioning spot AF is not a big deal - if you know it. I reckon spot AF just doesn't work reliably with an f/7.1 aperture. On Sony cameras, the AF switches to a broader AF field, if it has issues. The EOS R sticks to the setting.
Note that the spot AF works nicely in lab conditions.
Yesterday I shot another set of 50 images mostly at 500mm. Most images were motion blurred (surfers) - which was my fault (in combination with the f/7.1 aperture) because the shutter speed was not sufficient. There was at least one shot which was sharp - albeit not usable because the composition was s**t.
One conclusion is certainly that it isn't a sports lens at f/7.1 - you just end with very high ISOs in such cases.
Well, time to get a different camera in that case.
That's based on what I have seen from R5s and R6s, with this lens, and a bunch of other lenses, including the 600 F/11 and 800 F/11 ....
Kind regards, Wim
Gear: Canon EOS R with 3 primes and 2 zooms, 4 EF-R adapters, Canon EOS 5 (analog), 9 Canon EF primes, a lone Canon EF zoom, 2 extenders, 2 converters, tubes; Olympus OM-D 1 Mk II & Pen F with 12 primes, 6 zooms, and 3 Metabones EF-MFT adapters ....