07-04-2017 12:46 PM
I use 100-400 5.6 tried different lens. What ever I sent the max ISO for auto I use, that's the ISO it uses.
Is that the latest Canon "L" lens? We cannot see your camera, so you have to tell us about how your camera is set. If you call Canon, they will ask you similar questions.
What shooting mode are you using? Have you tried the Green [A] mode in birght sunlight?
07-05-2017 09:54 AM