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10-06-2009, 07:06 PM   #1
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Join Date: Jul 2009
Location: South Australia
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Sigma 120-400 HSM

I'm considering upgrading my Sigma 135-400 to the 120-400 HSM.
My biggest gripe with the older lens is the focal length creep when the lens is pointed downwards.
Perhaps someone who has the newer 120-400 can tell me if the same thing happens.


10-06-2009, 07:33 PM   #2
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Join Date: Sep 2009
Location: Tucson, AZ
Posts: 46
I had the 150-500 when I shot Nikon and it has a lens lock to prevent the lens creep.

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