ES Coma Corrector Star Charts or for boosting the contrast

or for boosting the contrast of nebula from dark sky sites

100 user defined programmable objects and enhanced information on over 200 objects

Maksutov-Cassegrain Optical Design

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ES Coma Corrector Star Charts or for boosting the contrastFeatures 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