Baader Clear Focusing Filter - 50.8mm Round Unmounted - FC-RD50 Celestron Labs the Celestron Labs Digital Handheld

the Celestron Labs Digital Handheld Microscope Pro 5MP brings professional-grade imaging to your desktop

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

Celestron C90 MAK Spotting Scope Specifications

Full multicoatings for greatest light transmission and contrast

Baader Clear Focusing Filter - 50.8mm Round Unmounted - FC-RD50 Celestron Labs the Celestron Labs Digital HandheldAbout 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