Soldato
- Joined
- 26 Nov 2003
- Posts
- 6,674
- Location
- East Sussex
So I decided to try some long exposures of the night sky, and was very dismayed to find the following in the top left corner of every shot I took, on several lenses 
Anyone know whats going on?
The effect worsens the longer the exposure, this was ~15mins.
This was much less, but the effect is still apparent:

Anyone know whats going on?

The effect worsens the longer the exposure, this was ~15mins.

This was much less, but the effect is still apparent:
