CS.

That's a Canon 70-300mm DO.

It is hard to tell if it is on the inside of the second element or the outside.

Wow! I had to look more than once. I thought that was my camera. Come on, grip and what appear to be the same strap?

Anyway, that is good to know. Foam stays.

Thanks!

Thank you for the thoughtful reply.

I shot a couple of rolls some time ago when I got the camera and there was no apparent light leaks.

Now that I am starting to shoot some rolls again I noticed that piece of foam.

Thanks anyway!

Is this a factory installed light seal? I mean the small narrow piece of foam.

Film door (top) gets a little raised where it is installed. The bottom does not look so raised.

Canon EOS 30v.

This is a scan of the same frame done 8 years ago with a different scanner (Plustek). No IR Cleaning.

This was done today with a Nikon Coolscan. No IR Cleaning.

Here is another example from another frame. (IR Cleaning ON)

What could be the cause of thoses stains?

It shows as blue on color negatives. If you look closely there are small ones too.

Thanks!

Inverted

Negative