For L-Mount, it is possible to customize the OS effect and the focus limiter distance to suit your shooting style and assign these settings to either Custom Mode switch C1 or C2. This is done via the SIGMA USB DOCK UD-11 (available separately) and the dedicated SIGMA Optimization Pro software (free to download). For Sony E-mount, the OS effect is assigned to Custom Mode switch OFF, C1 and C2 respectively.
Custom Mode switch default settings
The OS effect is well-balanced and suitable for a wide variety of scenes.
C1: Dynamic View Mode
This mode offers a recognizable OS effect to the image in the viewfinder. This helps to ensure the composition of images quickly.
C2: Moderate View Mode
This mode is quickly able to ascertain the difference between fine composition adjustment and unwanted camera shake. It provides a natural and smooth viewfinder image even when composition is changed rapidly.
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