falconer2406
Well-known member
Hi all, seem to have an issue with my mk1 500mm prime in as much as it doesn't want to lock into focus.
No matter what I try and what setting I use the lens simply won't lock on.
It sounds like a hammer drill in use where it's constantly trying to lock focus on.
I last used this back in June with no problems at all so I'm stumped as to what can be the problem.
I'm using it with a 7d mk2 which works fine when I put the 100-400mm on so I don't think it's a camera issue.
I've cleaned the contacts and tried various settings but no joy.
Anyone any ideas please?
No matter what I try and what setting I use the lens simply won't lock on.
It sounds like a hammer drill in use where it's constantly trying to lock focus on.
I last used this back in June with no problems at all so I'm stumped as to what can be the problem.
I'm using it with a 7d mk2 which works fine when I put the 100-400mm on so I don't think it's a camera issue.
I've cleaned the contacts and tried various settings but no joy.
Anyone any ideas please?