image moves in viewfinder with Sigma 17 50 !!!

Started Sep 6, 2012 | Discussions thread
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Kazzaz
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image moves in viewfinder with Sigma 17 50 !!!
Sep 6, 2012

is it normal that image moves in view finder when turning on the OS ? i just rented one and i don't know if this normal behavior from the lens ? also it has zoom creep maybe this is the reason ?
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 Kazzaz's gear list:Kazzaz's gear list
Nikon D7000 Nikon AF-S DX Nikkor 35mm f/1.8G Nikon AF Nikkor 50mm f/1.8D Sigma 17-50mm F2.8 EX DC OS HSM
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