Thread: Canon EF400mm f/5.6 USM
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Old 08-10-2008, 01:42 AM
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RB (Andrew)
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Quote:
Originally Posted by EzyStyles View Post
i'll go for the 400mm F2.8 L version mick instead of the F5.6L for astro use. F5.6 is relatively slow for deep sky stuff.
mmm but there's a big diff in price between the 400 f2.8 and 400 f5.6.
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