Baader Clear Focusing Filter - 50.8mm Round Unmounted - FC-RD50 Celestron Labs Good news for those of

Good news for those of us who have spent one too many observing nights searching through the grass for a dropped set screw

25" astro-filters

Explore 18mm 82 Degree Series Waterproof Telescope Eyepiece - 2" Specifications

Full multicoatings for greatest light transmission and contrast

amateurs can now record cloud structures on Venus

Baader Clear Focusing Filter - 50.8mm Round Unmounted - FC-RD50 Celestron Labs Good news for those ofAbout the Baader Clear Focusing Filter 50. 8mm Round Unmounted Use of special photography filters, especially narrowband filters, often results in dim images which can be difficult to focus. Baader Planetarium Clear Filters can be used first to clearly focus the image. Since they are parfocal with other Baader filters, they can then be removed and replaced by other imaging filters, without affecting focus. The high optical quality of the Baader