Any computer stores sells 120mm 12volt fans, if you were near by i would give you one lol. This thread may help with your choice of filter
http://www.iceinspace.com.au/forum/s...ad.php?t=77869 personally build light shields and go for targets directly overhead. Where i live i find the highest point for my targets in starry night pro and layout my night of imaging from it, that way i get the best results i can from where i am. I won't bother with filters and if i really want something i can't get ill go to a dark site for it
