Good idea Tony. I've pushed my 12" Dob up to 334x so far just out of curiosity. But the full moon spoilt the view anyway. But i'm lucky i live in a small town, probably about 1000pop. So skies up here are pretty dark. Mind you i've only got the stock eyepieces that came with the scope and a 2x Bintel barlow. Better eyepieces would help for sure.
Cheers,
Duncan
