p.1 #1 · Problem\bug with Canon 100mm 2.8L macro lens and EF to RF adapter on R5 MKII
I had an issue recently with my R5 MKII and the EF canon 100MM 2.8L macro lens. It basically stopped focusing in AF mode. It would work a little, andor would work far away but not up close then usually after a few minutes it would stop focusing all together. I put the lens on an older canon 40D and no issue. Back to the R5 and same issue. I used another EF to RF adapter, no help. I turned off IS, tried the macro limiter settings on lens no luck, I then determined it was a camera setting, and found it to be the "Lens Drive when AF impossible" setting in AF menu. Set this to ON and problem went away.
Thought i would share because I found nothing online about this and I got really lucky figuring it out. I thought the lens was just going to be useless on my R5II. Hope this helps someone.
