Just returned from a trip to Iceland & Norway and a little worried about how many keepers I have got from flying birds. Not many have the head sharp in focus. Is there something I am doing wrong? My exposure is 1/3200–1/4000 so that shouldn't be a problem. Using C-AF, Bird detection, AF Area - Large or All, SH2. Can't use back button focus due to my disability. I went from having 90% head sharp BIF with my Sony A9 III to around 20% on my OM1-MK2. I love this combo for everything else, but BIF is becoming a problem.as a fellow OM1II and 150-400 user I will be following this thread.Yea I use 50 fps a second, someone on another forum said to reduce the AF area to the smallest, literally the opposite to what I had to do on my Sony before..will give it a go."someone on another forum said to reduce the AF area to the smallest"
that is interesting advice.
So AF Illuminator Off, and untick everything in C-AF Centre Priority makes a huge difference, much better.