Baader Yellow 495nm Long-Pass Filter - Round Mounted - FCFY- William Optics Accessories Tele Vue offers the largest

Tele Vue offers the largest

Have you ever wished your 2" eyepiece barrel was just a little longer

Universal AC adapter included

About the Celestron Prepared Microscope Slides - 100 Piece Set

Baader Yellow 495nm Long-Pass Filter - Round Mounted - FCFY- William Optics Accessories Tele Vue offers the largestAbout the Baader Yellow 495nm Long Pass Filter Round Mounted Baader Planetarium astronomy filters by far supersede the mediocre quality of common "flame polished" color filters. A fine optical polish and 2 mm thick glass allows the Baader Yellow Filter to be inserted anywhere into the optical path without introducing astigmatism or other defects. For instance, they can be used in front of a binocular viewer without degrading the image in any way.