I recently bought a Yashica T4 on ebay. I took one roll and noticed a light square on the left side of a lot of my photos.
example :
The camera looked like it was in perfect condition when I got it but then I noticed that the lower latch of the battery door is missing, could this be where the light square squeaks in?
Some photos that were shot in the shade don't seem to have the square.
Thanks. - Nick