Objektivskolan - Ordlista - OS (Sigma)

 
Förkortningen betyder
OS = Optical Stabilizer Function
 
 
Förklaring från Sigma
This function utilizes a built-in mechanism that compensates for camera shake. It dramatically expands photographic possibilities by alleviating camera movement when shooting by hand held camera.

The OS function uses two sensors inside the lens to detect vertical andhorizontal movement of the camera and works by moving an optical imagestabilizing lens group to effectively compensate for camera shake. The OSfunction offers the equivalent of using a shutter speed 4 stops faster makingit suitable for telephoto and low lightphotography. As the stabilizing feature is built intothe lens, it can be designedspecifically to suit the characteristicsof that lens. This provides precisecompensation for camera shakethroughout the entire zoom range.This also enables the correctlystabilized image to appear in theviewfinder aiding autofocus andcomposition.
 
 
Se exempel på berörda produkter
Sigma EX 17-50mm f/2,8 DC OS HSM
Sigma EX 70-200mm f/2,8 APO HSM DG OS
Sigma EX 50-500mm f/4-6,3 DG APO OS HSM
 
Se länkar
sigmaphoto.com
sigma-photo.co.jp




Objektiv för Canon
Nedan visas några populära alternativ (se alla)
Canon EF 16-35mm f/2,8 L USM II Canon EF 16-35mm f/2,8 L USM II
Sigma EX 70-200mm f/2,8 APO HSM DG OS Sigma EX 70-200mm f/2,8 APO HSM DG OS
Canon EF 17-40mm f/4 L USM Canon EF 17-40mm f/4 L USM
Canon EF-S 18-55mm f/3,5-5,6 IS STM Canon EF-S 18-55mm f/3,5-5,6 IS STM
 
 

Objektiv för Nikon
Nedan visas några populära alternativ (se alla)
Sigma 17-70mm f/2,8-4,5 DC HSM Macro Sigma 17-70mm f/2,8-4,5 DC HSM Macro
Sigma EX 24-70mm f/2,8 DG Macro  Sigma EX 24-70mm f/2,8 DG Macro
Nikon AF-S DX 12-24mm f/4 G IF-ED Nikon AF-S DX 12-24mm f/4 G IF-ED
Sigma EX 70mm f/2,8 DG Macro Sigma EX 70mm f/2,8 DG Macro
 
 

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