Lens Plate
Posted April 26, 2010
By admin
An astronomer wants to determine whether or not he or she can photograph Castor and Pollux at the same time?
An astronomer wants to determine whether or not he or she can photograph Castor and Pollux at the same time on at 5 X 8-inch plate using a lens system with a 1200 mm focal lenth. If the two stars are approximately 5 degrees apart, will it be possible to make the photograph?
Tell your teacher that glass photographic plates are no longer used (haven’t been for decades). The current method is to use CCD cameras. Time to overhaul the question
And here’s the current way of figuring out how a given camera will work for a given telescope -
http://www.astromart.com/articles/article.asp?article_id=73
Multi-Protocol Universal PTZ Camera Lens Decoder Board YJS-6013
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