Ihi
Selling my set of 36mm Baader Narrowband filters as below.
These are 36mm unmounted.
H-alpha - 7nm
OIII - 8.5nm
SII - 8nm
Same as these
http://www.teleskop-express.de/shop/...3-Filters.html
They've always been in my 7 position filter wheel, never really taken out. They're in good condition and do come with the original boxes.
Will post some pics this evening.
Looking for $400 plus postage.
I can sell them individually if required.
Cheers
Alistair