Explore Scientific Finder Scope Reticle Illuminator - FNDRILLUM type-focusing A fine optical polish and

A fine optical polish and 2 mm thick glass allows the Baader Dark Blue Filter to be inserted anywhere into the optical path without introducing astigmatism or other defects

Each Celestron OIII Narrowband Telescope Filter has an ultra hard

Celestron Product Number: 18774

Aperture: 203

Tripod Adaptable

Explore Scientific Finder Scope Reticle Illuminator - FNDRILLUM type-focusing A fine optical polish andAbout the Explore Scientific Finder Scope Reticle Illuminator The Explore Scientific Finder Scope Reticle Illuminator was designed specifically for use with the 50mm Explore Reticle Finderscope. Acts as a replacement and is not a stand alone unit. Explore Finder Scope Reticle Illuminator Features Designed specifically for use with the 50mm Explore Reticle Finderscope Adjustable red LED brightness Acts as a replacement not a stand alone unit Explore