DayStar 90mm ERF with custom cell

Please Log In to view the details for this classified ad.

Don't have an Astromart account? Click here to create one

I have for sale a Daystar clear (yellow) ERF filter that has clear aperature of 90mm. The custom aircraft grade aluminum cell was fabricated to be heavy to offset the weight of a heavy DayStar Filter. The I.D. of the filter cell is 4.25". The glass is in perfect condition and has a excellent image when used with a quality refractor. I'm asking $425 and I'll take care of insured shipping.

Martin

Funding Member

Telescopes, Astronomy, Binoculars