new Sigma 120-400 OS ?

Started May 16, 2010 | Discussions thread
Kalin Forum Member • Posts: 96
Re: new Sigma 120-400 OS ?

The advantage of in-lens OS (or IS or VR or VC) is that the viewfinder is stabilized. At wider FOV this doesn't matter. But try to achieve tight framing at 400 mm and the stabilized viewfinder is a huge help...

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