Find the gear
for your lens.

Sigma Art lenses have a loyal following among filmmakers because they are sharp, fast and affordable. The 18-35mm f/1.8 and 50-100mm f/1.8 are the best known pair, but there is a lot more: wide primes, macro lenses, sports zooms and the newer DG DN lenses for L-mount and E-mount. We make a matching gear for each of the lenses on this page.

Typical ring sizes

The Sigma 18-35mm f/1.8 Art uses 3.07–3.15 in (78–80 mm) on the focus ring and 2.95–3.03 in (75–77 mm) on the zoom ring. The 50-100mm f/1.8 Art is bigger, at 3.54–3.62 in (90–92 mm) for focus and 3.19–3.27 in (81–83 mm) for zoom. Among the primes, the 35mm f/1.4 Art needs 2.95–3.03 in (75–77 mm), and the 85mm f/1.4 Art 3.54–3.62 in (90–92 mm).

Picking the right one

• Check the full name. Sigma sells several lenses with the same focal length and aperture, such as the 24-70mm f/2.8 in Art, DG DN and EX versions.
• Choose a focus gear, a zoom gear or both for zoom lenses, depending on what you want to drive.
• If your lens is not listed, the gear for any lens covers 2.24 to 3.62 in (57 to 92 mm).

All gears have Mod 0.8 teeth and fit standard follow focus units and wireless motors. We ship from Texas in about 3–5 days, shipping is free in the US from $60, and returns are accepted for 14 days.