Thread: Which telephoto lens to go for...?
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Old 02-10-2013, 11:00 AM
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Octane (Humayun)
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Octane is offline 		 
Join Date: Dec 2005
Location: Canberra
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f/4 is plenty fast for deep space work.

Why not get the Canon EF 200mm f/2.8L II USM, a dedicated 200mm lens, or if you need the versatility, go for the Canon EF 70-200mm f/2.8L USM (non-IS).

H
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