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The Swedish Chameleon SC:BELTKIT "SML" Timing Belt Kit for SC3:FFOCUS Follow Focus is a set of three powerful timing belts, consisting of a small, medium, and large for use with Swedish Chameleon's innovative belt-driven SC3:FFOCUS Video Follow Focus. Each of the three is for use with a different diameter lens, from small to large. In use, each belt loops around the focus ring of a lens and around a belt wheel on the follow focus. At a turn of the follow focus's focus wheel, the belt pulls focus accurately without any play.

The belts are designed for still lenses, as although they each have a pitch, it isn't the .8 pitch that cinema lenses have, and pulls are achieved by friction alone. The belts work with all still lenses but require an added component for those that have aluminum focus rings, (such as those from Zeiss, which all have aluminum focus rings). The added component is Swedish Chameleon's lens rubber and it comes included.

  • 3 timing belts for belt-driven SC3:FFOCUS Follow Focus
  • Diameters: 11.2" (285mm) / 13" (330mm) / and 15" (380mm)
  • Made of very durable polyurethane compounds with steel wire core
  • Features up to a 30% increase in power in comparison with standard belts
Material Durable polyurethane compounds with steel wire core
Diameter Size S / Small: 11.2" (285 mm)
Size M / Medium: 13" (330 mm)
Size L / Large: 15" (380 mm)