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Sudden focusing issue on RF 24-105mm f/4L IS USM

peter_b
Apprentice

Hello everyone,

I'm new and hope I'm posting this in the correct place 🙂

I took some pictures today with my RF 24-105mm f/4L IS USM lens on an EOS RP. It worked fine, but all of a sudden now, in the rage of 24-50mm or so, the left side of the view field is blurred. I can't focus in that area, and all pictures I take come out blurred (on that side) - see attached image.

What happened? Can this be fixed?

Thank you already!IMG_0703.JPG

1 ACCEPTED SOLUTION

I inspected the back side of it closer, and it turned out that one of the screws was loose. So I just tightened it and the issue went away.

 

lens.jpg

View solution in original post

11 REPLIES 11

Glad it was an easy user fix.  And I hope this was a one off QC issue because that screw was likely loose from the moment it came off the line and finally loosened enough to create an optical issue.

Sounds like the hot shoe installation guy got promoted from the camera body to the lens assembly line 😂

Rodger

EOS 1DX M3, 1DX M2, 1DX, 5DS R, M6 Mark II, 1D M2, EOS 650 (film), many lenses, XF400 video

ebiggs1
Legend
Legend

"So I just tightened it and the issue went away."

 

I would certainly be skeptical about that being the cause. Hope it is for your sake but don't be surprised if the condition returns.

EB
EOS 1D, EOS 1D MK IIn, EOS 1D MK III, EOS 1Ds MK III, EOS 1D MK IV and EOS 1DX and many lenses.
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