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Old Aug 6, 2007, 1:05 AM   #1
Junior Member
Join Date: Aug 2007
Posts: 3


I know this may sound stupid but I am going to ask anyway, because I don't know the answer. How does a Telephoto lens work? Take for instance the 3X Telephoto lens you can get for the Canon S5 IS. Is the 3X power added to the exiting 12X power to bring the camera up to 15X power or is it like 3 X 12 = 36?
AJ DRAGON is offline   Reply With Quote
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