ZWO NB filters any good?

[Spookyer (Brett)]

Hi all, I am in the market for some 36mm NB filters. The king is the Astrodons 3mn jobs but looking at $1000 a pop for these. The ZWOs can be had for under $300 (7nm). Anyone with experience with ZWO nb filters? Are they any good?

Cheers
Brett

[glend (Glen)]

Have a look at the Baader Narrowband filter sets from Teleskop-Express. I use the 36mm unmounted Baader NB set with my ASI1600MM-C and QHY filter wheel. They are parafocal, so i rarely have to refocus. And as a set they are very cost effective.

[Spookyer (Brett)]

Thanks Glen, these are not much more expensive than the ZWO. Any opinions on what would be the better product. (For SBIG STT8300 camera)

[glend (Glen)]

Well i have not compared them but Baader has been making filters for a long time, where as ZWO is fairly recent camera making company - mainly. It is your decision. Perhaps looking at the spectrum pass chart for each would help and find out who makes ZWO filters.

[Camelopardalis (Dunk)]

Yeah I'd want as close to 100% tranmittance as possible, ZWO claims 80% My filters are relatively wide, if I'd done my homework I would have got the Baader too.