1. Easy to use, easy to install 2. Zoom or focus adjustment of the lens. The length of the follower rack can be adjusted according to the lens diameter. This follower bevel is used with the Ronin-S follower motor. 3. Length: 377 mm 4. Fit lens aperture range: 30 to 110 mm 5. Number of teeth: 151 6. Modulus: 0.8
