1.25" UHC Filter for telescope eyepiece - Cuts light pollution deep sky astronomy imaging the flattener is a push

the flattener is a push fit 2" that is threaded to accept all standard 2" filters

and also prevents chemical reactions with other elemental contaminants that may be introduced through a weakened seal

isolates the two doubly ionized oxygen lines (496 and 501nm) in addition to the hydrogen-beta line (486nm) emitted by planetary and most emission nebulae

- Most accurate way to guide - improved accuracy compared to using a separate guide scope

Add the FLAT61A 1

1.25" UHC Filter for telescope eyepiece - Cuts light pollution deep sky astronomy imaging the flattener is a pushUHC Ultra High Contrast Filter 1. 25" Telescope Eyepiece Filter High Contrast Cuts Sky Light Pollution The UHC filter is the best all around dark sky nebula filter. It darkens the sky significantly with increased contrast between sky and nebula. The narrowband UHC filter, isolates the two doubly ionized oxygen lines (496 and 501nm) in addition to the hydrogen beta line (486nm) emitted by planetary and most emission nebulae. This filter permits superb