Sigma Lens Hood LH706-01 - Petal Type

The main purpose of a lens hood is to block stray light from entering the lens, which helps to prevent lens flare, ghosting, and loss of contrast. It also provides physical protection to the front lens element.

No, the LH706-01 is specifically designed for the Sigma 28-70mm f/2.8 DG DN Contemporary lens. It is not compatible with other lens models.

Yes, typically you can use standard 67mm filters with this hood. However, stacking multiple filters or using very thick filters might introduce vignetting, especially at wider focal lengths.

Use a soft, dry microfiber cloth to wipe away dust. For smudges, slightly dampen the cloth with water and wipe gently. Avoid using solvents or abrasive cleaners.

The lens hood is made from plastic.

While it offers some protection against direct splashes or light rain, it is not a substitute for a waterproof cover and should not be relied upon in heavy precipitation.

A petal-shaped hood has cutouts that match the aspect ratio of most camera sensors (typically 16:9). This design allows for maximum shading at the sides and top/bottom of the frame while minimizing the risk of vignetting at the corners when used with wide-angle lenses.

Ensure the hood is properly aligned with the mounting bayonet on the lens. Check for any debris or damage on the mounting points of both the hood and the lens.

Verify that you are using the correct hood for your lens. Ensure the hood is fully attached. While unlikely with this dedicated petal hood, try removing any front-mounted filters to rule them out as a cause.

Confirm the hood is securely locked in place. Inspect the hood for any cracks or damage that might allow light to enter inappropriately.