Insect Diffraction

[tomato]

Whilst trying to align the cameras on my dual rig tonight, I noticed a very prominent single diffraction spike on one scope, and even more weird, it changed position and shape between each 3 second exposure. I peered down the dewshield with a torch but could see nothing, so I returned to the laptop to see the spike had disappeared and then suddenly re-appear! More determined this time, I slid the dewshield back to reveal a very torpid lacewing crawling around the edge of the lens and then deciding  to stride across it. In the end I had to blow him off with a hairdryer. He may have left some poo on the lens so I will need to sort that out without delay.

[bosun21]

I bet that must have really bugged you!