Description: For Newtonian Reflecting Telescope Eyepiece Erecting Prism 1.25"/31.7mm Star Diagonal Mirror. High Refractivity?built-in high-definition refractive prism, to create a more comfortable viewing position and clear image. 2X Magnification Barlow Lens Effect?rectifies the image and magnifies the image by 2x. Fully Multi-coated Green Film?high quality optical glass for maximum light transmission and brightness. Just insert into 1.25" telescope eyepiece, and fix it by the screw. M42x0.75mm thread to connect film or digital cameras via T ring adapter. Specification: Material?Optical Glass + Meal Coating?Fully Multi-coated Green Film Interface?1.25"/31.7mm Magnification?2x Scew?M42x0.75mm Length?12.3cm/5inch Width?5cm/2inch Package Includes: 1x Telescope Erecting Prism
