Sigma 120-400 OS users

Started Oct 12, 2012 | Discussions thread
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Re: Sigma 120-400 OS users
In reply to BPB, Oct 24, 2012

BPB wrote:

All of the information about this lens can be found in the link below,


Bryan (BPB)


i was interested in user's experience as it differentiates from the official specs especially when it comes to third party. For example my (newly purchased used) copy is as unsharp @ f/8 as it is @ f/5,6 and gets sharper @ f/11-f/16 And other people dont use OS over 1/500s others use Mode2 and others Mode1 , so far though none of them can justify their choices with visible constant results .

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