Performance Testing a CCD Camera
Submitted by AstroPhoto Insight on Tue, 04/01/2008 - 16:11.
This article, published in the April 2008 issue of AstroPhoto Insight™ Magazine, is reprinted with permission from Astronomy Technology Today magazine, Vol. 2, Issue 2, February 2008. No portion of this article may be copied, reposted, duplicated or otherwise used without the express written approval of the author, Astronomy Technology Today and AstroPhoto Insight. © 2008 Professional Insight
Capturing images from the sky is a complex process. Starlight passes through the atmosphere, through your telescope, through the filters in your camera, until it finally strikes your camera’s image sensor. In the controlled environment of the camera body, photoelectrons accumulate on a CCD image sensor, your camera’s electronics read out the CCD, digitize the signal, and pass data to the driver software in your computer, until it finally reaches the image acquisition software.
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