Sigma LC735-01 Cover Lens Cap provides protection from moisture and dust, this new plastic cover lens cap is compatible with the Sigma 15mm F2.8 EX DG Diagonal Fisheye and 8-16mm F4.5-5.6 DC HSM Lenses.
Price: $69.95 from Camera House
The LCF-105 III from Sigma is a spare or replacement lens cap designed to fit lenses and cameras with a 105mm thread diameter. The lens cap utilizes a center-pinch and side-pinch design. It features a matte black finish with the Sigma logo on the front.