ES Coma Corrector Star Charts This 2” star diagonal has

This 2” star diagonal has the added benefit of allowing you to use larger 2” eyepieces with your telescope

the GEM45EC with its high resolution encoder delivers a PE<0

The set holds three 1

Internal safety stop prevents 1

• Optimized anti-reflection coating

ES Coma Corrector Star Charts This 2” star diagonal hasFeatures 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 annoying presence at the outskirts of an image can be