Gear Talk > Lenses

Vignetting problem on 24-105mm

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Slashp:
Hi all,

I went to Yosemite this weekend to play with my new 5D Mark III (Love this camera) + 24-105mm and I just noticed a weird vignetting issue at 24 mm (does not show at other focal lengths)



The Aperture was f11 and the vignetting is only visible on the top left corner...
Anyone noticed the same behavior with the Kit lens (I am okay with vignetting as long as it is consistent in every corner of the picture...)

neuroanatomist:
That doesn't seem normal.  An improperly mounted hood can cause that, as can stacked filters.  The fact that you're seeing it only in one corner, assuming it's not the hood, suggests some decentering in the lens (i.e. service needed).

K-amps:
A sudden and Harsh vignette like that is not from a normal 24-105mm. That is weird especially being on only one corner.

prestonpalmer:

--- Quote from: neuroanatomist on April 30, 2012, 01:29:11 PM ---That doesn't seem normal.  An improperly mounted hood can cause that, as can stacked filters.  The fact that you're seeing it only in one corner, assuming it's not the hood, suggests some decentering in the lens (i.e. service needed).

--- End quote ---

My first thought was twisted lens hood as well.  Or stacked filter.  Is this a once off thing or does it happen on every photo at this focal length?  Have you tried with the lens hood removed and no filters?

I actually just sent my 24-105 in for repair.  Something came loose inside and it jammed.  Wouldn't close past 35mm.

Brendon:
My copy exhibits a little bit more vignetting in the top left corner at 24 mm when it's wider than f5.6 or so, but nothing like this.  Looks like the hood is not clicked into the right position or you were using cokin filters and the filter holder was a little rotated.  If it's not the hood or a filter, I would definately send it in for repair. 

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