Srange colour shift in the negative frame

[disco2000]

Hello

I get this weird kind of "color shift" with my Yashica 35 GX. It doesn't happen in every frame, but when it does it's always in the same spot. What could be causing this? Is this a light leak? the light seals look like they're all in good shape to the eye..

Here is an example. Any ideas?

 

[farlymac]

Did you look at the negatives to see if the problem is actually in the film? If not, it could be a scanner issue. Never seen something like this before. That's an awfully straight line for it being a camera fault.

PF