Thread: Tamron SP AF70-200mm F/2.8
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Old 21-02-2009, 05:51 PM
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Rigel003 (Graeme)
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Tamron SP AF70-200mm F/2.8
Is anyone familiar with this lens for astro work? Im wondering if it might be a viable alternative to the Canon L 70-200 f/2.8. It's less than half the price. The reviews say the optics are excellent but the autofocus is slow and occasionally unreliable, which isn't really an issue for astro work.
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