EF 70-200 L IS II USM Focus Falloff

[rschleyer907]

Focus Trails off toward bottom

Hey all! This has been going on for a while but it seems to be getting worse.  Is this something that can be adjusted or is it time for a new lens?  Thanks!

[rschleyer907]

I rarely shoot at 70mm and that's what these two photos were taken at so my guess is that there's no change throughout the range of the lens, but I will double check that, thanks!

[rschleyer907]

I'm using a Canon adapter for the EF/RF conversion.  Thanks!

[rschleyer907]

I found a local camera repair expert that noticed the rigidity of the lens was a bit sloppy... (overall, minute but more than the lens should have), and he's taking a look at it. He said, "You've got some screws loose." and he'll have it back to me in under two weeks.  I'll update once I've tested it.  Thanks again for your input, all!