Baader Clear Focusing Filter - 50.8mm Round Unmounted - FC-RD50 Celestron Labs making it an excellent choice

making it an excellent choice for both terrestrial and astronomical usage

Celestron C90 MAK Spotting Scope Specifications

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

2" Mirror Diagonal - This high quality 90-degree multicoated mirror diagonal allows you to take advantage of the wider field of view provided by 2" eyepieces

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

Baader Clear Focusing Filter - 50.8mm Round Unmounted - FC-RD50 Celestron Labs making it an excellent choiceAbout 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