Quote:
Originally Posted by little col
details are
30 secs 800iso , prime focus on a 8" newt with a baader nedymium filter/ 350d baader modded dslr
seems that every image has a purple cast to it and its driving me knuts , do you think its l.p ?  
really appreciated for any help |
Hi,
I wouldnt worry about the cast. I image from inner city sydney and have tried an orion lps filter (orange cast), atronomic UHC filter (blue cast). I think all filters give a cast to the LP in the sky background.
I just stack as many photos as possible and process the cast out with PS2 (or equivalent). Also since you have severe LP i would consider capturing at ISO 400, so you will be able to expose longer, stack more subs and rely on PS2 to bring out the details.
Paul