image moves in viewfinder with Sigma 17 50 !!!

Started Sep 6, 2012 | Discussions thread
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Kazzaz Contributing Member • Posts: 885
image moves in viewfinder with Sigma 17 50 !!!

i have a d7000 i noticed sometimes image moves in the viewfinder when the os is on with the sigma 17 50 specially when zooming to 50 , this doesn't happen with the 35 or the 18 105 or the 18 55 is it normal ? knowing that the lens has zoom creeping when looking up it goes down when zooming to 20mm .
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 Kazzaz's gear list:Kazzaz's gear list
Nikon D7000 Nikon AF-S DX Nikkor 35mm F1.8G Nikon AF Nikkor 50mm f/1.8D Sigma 17-50mm F2.8 EX DC OS HSM
Nikon D7000
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