ITEM NAME:2" Telescope Eyepiece Filter Blue for Celestron Nikon Astronomy Photo Kit Description: For standard 2" astronomy telescope eyepiece. To observe moon, nebula, star, deep sky object and other planets. Perfect for brighter views and detailedv surface of the observation objects, more comfortable astronomy observation experience. High quality optica glass with aluminum alloy frame. M48x0.75mm thread mount. Specification: Material: Optical Glass + Aluminum Alloy Size: 50x7mm / 2.0x0.3inch Package Includes: 1x Telescope Color Filter.Material: Optical Glass + Aluminum Alloy.
