I just bought myself a Canon 70-200mm F4 IS lens, it was second hand, new in 2012.
When I push the shutter button half down the af is constantly searching, sometimes it wont focus at all.
I can use the manual focus ring to get a good shot, but shouldn't it do this itself?
The AF switch is on, image stabiliser is on, stabiliser mode 1
Am I doing it wrong? Or expecting too much?
I have been using the 55-250mm stm up until now.
Apologies if I have any terms wrong, still a beginner!