#1. "RE: D7000 battery drain and OS lenses" In response to In response to 0
Los Angeles, US
In his eBook on the D7000, Thom Hogan writes about VR and battery drain. Of course, he is talking strictly about Nikkor lenses, but the mechanical principles are pretty much the same on Sigma with OS.
He says to keep your finger off the shutter button. That's what initiates VR and increases the current draw on the battery. So, don't hesitate.
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