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The eye-guard can also rotate for Dioptrx users
Prism Glass (Type): Bak-4
Application: 80mm Finderscopes
TeleVue 60-Degree Everbrite Erect Image Diagonal - 1
grooved or tapered
Explore Scientific HR Coma Corrector for Newtonians - HRCC02-00 Tele Vue Accessories The eye-guard can also rotateAbout the Explore Scientific HR Coma Corrector for Newtonians After hours at the eyepiece, you finally get to view the fruits of your astrophotography labors. The stars in the center of the field pop like brilliant precise points of light. But as you survey the image, you notice the stars at the edge have taken on an unnatural comet like shape. Your long night has been marred by coma. Coma is a common plague of the Newtonian reflector design, and its
