Sigma 28mm F1.4 DG HSM I Art Lens - Sigma Mount Remote Controls The addition of a compatible

The addition of a compatible wide angle accessory expands the camera's field of view underwater

When chained together

and its ability to function as both an on-camera light and and off-camera light

The WiFi feature is only usable above water within close proximity to the connected device

10 year extended warranty when you register your microphone

Sigma 28mm F1.4 DG HSM I Art Lens - Sigma Mount Remote Controls The addition of a compatibleSigma 28mm F1. 4 DG HSM I Art Lens Sigma Mount Sigma SKU: 441956 Helix SKU: SM441956 Overview The new Sigma wide angle model stands out with its thoroughly corrected magnification chromatic aberration and sagittal coma flare, as well as completely minimized distortion thanks to its optical design. It features water and oil repellent coating on the front lens element and its overall dust and splash proof structure ensures excellent performance even in