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Experiment with a 4inch Tasco
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08-10-2009, 01:23 PM
paulF
(Paul)
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Join Date: Sep 2009
Location: Melbourne
Posts: 131
Thanks for your reply Renormalised
I thought that aperture controls how dim the image is and not the focal length. Could you please shed some light on why would the image be more dim?
Thanks
paulF
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