[peeb61 (Paul)]

Hi All,

I have attached one of the images I took of Eta Carina.
It's a quick 2min exposure using my modded Canon 350D.


There appears to be coma? Or is it field rotation? At both ends of the image.

Taken with my 10" LX200gps using a celestron f6.3 focal reducer and guided with a skywatcher 102.

The focal train is….

MeadeMotofocuser >Deep Sky filter>Orion Adaptor tube>f/6.3 focal reducer>T-adapter>Canon 350D



My questions are ...do I have the focal reducer in the right place in the focal train or do I need to move it to another point in order to reduce this error?
Thanks in advance

Paul