Follow focus gear for Sigma 1.8/18-35mm DC (Art) lens
Made of anodized aluminium. Have tight enough fit, but can also be secured with 3 set screws by means of hex key (included) if necessary.
32 pitch (mod 0.8).
Inner diameter - 78mm
Outer diameter - 88 mm
Width - 25mm
Weight - 70 g
Purposed for Sigma 1.8/18-35mm DC (Art) lens.