Search results for 'filter'

This 60mm aperture H-alpha filter can be used with virtually any telescope having a 60mm or greater aperture - but is designed to work best with telescopes having a focal length of under 3000mm . . .

This full aperture solar filter fits all 8" Celestron and Meade Schmidt-Cassegrains and 7" Meade Maksutov-Cassegrains . . .

The 2" Lunt PF-1 polarizing filter is designed for use with 2" eyepieces in the Lunt LS2HW Solar Wedge to control the image brightness during white light visual observing.

This 2" Celestron ultra high contrast (UHC) light pollution filter blocks out most unwanted light pollution, making it easier to pick out faint nebulas from suburban and dark sky observing sites alike . . .

This low profile ZWO filter wheel is just what your monochrome camera ordered.

This 40mm aperture H-alpha filter can be used with virtually any telescope - but is designed to work best with telescopes having a focal length up to 1500mm. The front filter element (containing the ERF and etalon) requires an optional custom mounting plate to attach to your specific telescope. The filter is provided with a 15mm clear aperture blocking filter mounted in a 1.25" right angle star di . . .

This filter is designed to specifically enhance your Origin experience.

This 60mm aperture H-alpha filter can be used with virtually any refractor telescope having a 60mm or greater aperture - but is designed to work best with telescopes having a focal length of 1500mm and under . . .

This Celestron ultra high contrast (UHC) light pollution filter has improved contrast when compared with the wider passband of a broadband filter, making it easier to pick out faint nebulas . . .

This low profile 7 position ZWO filter wheel is just what your monochrome camera ordered.