Sigma LC1020-01 Front Lens Hood Cover 12-24mm

The Sigma LC1020-01 is a front hood cover designed exclusively for the Sigma 12-24mm F4.0 DG HSM Art lens. Unlike conventional lenses that accept standard snap-on caps, the 12-24mm F4 DG HSM features a built-in, non-removable petal-shaped lens hood with a bulbous front element that protrudes beyond the hood's rim. This design makes it impossible to use off-the-shelf lens caps, which is exactly why Sigma engineered this dedicated cover. It slides over the front of the built-in hood to protect both the hood petals and the exposed front glass element from impacts, scratches, and dust during transport and storage.

Constructed from metal rather than plastic, the LC1020-01 offers a noticeable step up in durability. The black finish matches the lens body for a clean, integrated look. While it is a simple accessory, it solves a real problem—without it, the front element of one of Sigma's flagship ultra-wide lenses is left vulnerable every time the lens goes into a bag. For photographers who own the 12-24mm F4 DG HSM, this cover is a practical, well-built protective solution with no real third-party alternative.