Quote:
Originally Posted by TheDecepticon
Thanks Marc.
I thought 3nm would be too hard for a small scope? I was going to go for the 12nm versions. Any reason the 3nm type would be better?  |
Less stars, better cut off in the details. Not sure how it affects small aperture. More subs or longer subs would work IMHO. The only advantage I heard about broader band pass is that they work better with a steep light cone such as the hyperstar. Other than that NB filters can be expensive. If I did it all over again I would have spent a bit more and got narrower ones. Currently I have 7nm, 8nm and 8.5nm Ha/Sii/Oiii. That's all that Baader does. If you want narrower you have to go astronomiks or custom scientific. The Ha 3nm is in the 1K ball park I believe.