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Home > Classifieds > Astromart Classifieds > Filters > Classified #98998

For Sale: Two Optica b/c 1.25-inch Filters - $12 each shipped (Sold)

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Two Optica b/c filters. They don't have cases and have only 3/4-inch of clear aperture, but they are extremely well built and I have been very happy with them. $12 each shipped USPS.

Optica b/c #58 or #61 Green (<24% transmission) Strongly rejects red and blue to increase contrast of Jupiter and Saturn. Also increases contrast of Mars polar ice caps. Filter has no mark, but is slightly darker than my Celestron #58 Green, so my guess is that it is a #61 deep green.

Optica b/c ND20 (20% transmission) Excellent filter for glare reduction. Better transmission numbers make this better than the standard 13% moon filter for small aperture scopes.


If you take them both we can call it $20 and Iwill ship FedEx ground instead of First Class mail. I would be happy to answer any questions. I just bought a complete collection of all four Celestron filter sets, so these duplicates must go.

Thanks,

Paul McCarl

 

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