Quote:
Originally Posted by clive milne
Not exactly... you can actually get a 1nm H-a for a couple of grand from Alluxa.
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That's true, but I was told that Astrodon will not make such filters.
For those who might be interested in 1.7 nm Ha filter:
http://buy.alluxa.com/ultra-narrow-b...dpass-210.html
EDIT: In the past (a year or so ago) I enquired Alluxa if they would make a 2nm Ha 1.25" filter for me, so they asked about my budget. Alluxa never got back to me once I told them I could spend up US$1500 for such filter.