Sigma HG-21 Large Hand Grip CRK Constant f/4 maximum aperture maintains

Constant f/4 maximum aperture maintains consistent illumination throughout the zoom range

two aspherical elements

flare and ghost images are minimized by applying exclusive lens coatings to optical elements and employing anti-reflection materials for the interior of the lens barrel

is accomplished with one upstream USB 3

The SpyderLensCal features a built-in level and tripod mount

Sigma HG-21 Large Hand Grip CRK Constant f/4 maximum aperture maintainsDedicated to the Sigma fp mirrorless camera, the HG 21 Large Hand Grip provides an improved and more secure grip when shooting handheld with the camera. It attaches to the bottom of the camera body via the rear 1 4 inch 20 mount.