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ESSAY: CONTRAST IN EYEPIECES
Contrast in Eyepieces
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Product Code: CONTRAST-IN-EYEPIECES
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CONTRAST IN EYEPIECES--How we define it, how it's created, and how to enhance it.
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  • How we define contrast, how it is produced, the factors that influence it, and ways to improve it in telescope eyepieces.

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 1 Write a review »

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5 of 5 Guide For Achievement of Maximum Visual Contrast November 7, 2019
Reviewer: Gene Cross from Fremont, California  
This is a very insightful essay on all the contributors to image contrast while viewing an astronomical target. It would seem that the evaluation of eyepiece contrast is best done utilizing an optically near perfect telescope, perhaps at least 150mm to 250mm in aperture, with excellent coatings, excellent collimation, excellent stray-light control (good baffles), and under good atmospheric conditions. My thanks to Don Pensack for this very valuable and helpful contribution.

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