EF 8-15 FE Vignette Issue

[cresantec]

Had an 8-15 for about 9 months and noticed that the vignetting is not even when zoomed out wide. It has more on the right side than the left and the lower left looks the least. I have a 60D and 5DIII and it happens to both. Thinking of dropping off the lens at Canon's local repair center but want to make sure this isn't normal. Sample image below from 60D. It looks worse on the FF. What do you think? Needs service? Thanks!

 

[Hannes]

do you have the lens hood on it when it vignettes?

 

[cresantec]

Lens hood is off. I took a couple pics on my FF to show it better. I don't mind so much but there were a couple shots that had the vignette on the right and not the left. The only thing I can do in post to fix it is crop which sucks when you want to go really wide. No issues on 8mm; It's a full circle. I think I'm going to end up going to Canon service to look it over.

 

[Random Orbits]

Lens hood is off. I took a couple pics on my FF to show it better. I don't mind so much but there were a couple shots that had the vignette on the right and not the left. The only thing I can do in post to fix it is crop which sucks when you want to go really wide. No issues on 8mm; It's a full circle. I think I'm going to end up going to Canon service to look it over.

Not normal at all. My lens vignettes equally in each corner when I shoot wider than 14mm on FF. Have it checked out.