Constructed from high-quality materials, Chrosziel's DV StudioRig Follow Focus is built for the professional filmmaker working with DSLR, mirrorless, or cinema cameras. The main body of the DV StudioRig is machined from aluminum and the oversized handwheel rotates smoothly with minimal play in the gearbox. Use the knurled thumbscrew on the sliding rod clamp to secure the DV StudioRig to 15mm LWS rods. Since the rod clamp slides, the DV StudioRig is compatible with many lens diameters, from small DSLR lenses to larger cinema lenses. This version of the DV StudioRig comes with a reverse gear drive for pulling focus correctly with lenses whose focus rotation is opposite that of traditional cinema lenses. As this reverse gear has a module of 0.8, it is only compatible with 0.8 MOD drive gears. A white marking disk is included for outlining focus pulls with a dry-erase marker or grease pencil.
In order to be used with a lens, a drive gear must be purchased separately. Drive gears are available in various sizes and tooth spacings to fit ENG and cinema lenses as well as a friction gear for DSLR lenses without teeth. Once you have a gear, it simply snaps into the gearbox and can be easily exchanged. Settable hard stops can be added with the separately available C-206-60 VariLock upgrade kit.