Cheers narnyrama... always ready to help out
You should absolutely fly with your TSA102 and modded 40D. Can't wait to give a it a burl with you.
Looking forward to seeing what your more sensitive camera does in relation to my less sensitive one, but with my scope being quite fast at f/4.5 vs. yours at f/6.3 or thereabouts with the reducer fitted.
Thanks too Trevor - and yes, it's been a little while.
