Thread: Sigma 500mm F4
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Old Saturday 24th September 2016, 14:29   #6
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Join Date: May 2008
Location: Nova Scotia
Posts: 448
Originally Posted by Vespobuteo View Post

Nikon version has the electro magnetic shutter,
Aperture, shutters are in mostly found in camera bodies .......

What it will offer, that non of the other big name primes has to offer is the USB-port to fine-tune lens performance to a camera body and shooting scenario, and to update firmware without sending gear in for service.
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