Teradek Pre-Marked Focus Ring Set for CTRL

A CTRL controller reads a lens through its focus ring, and a pre-marked ring is what lets it auto-calibrate instead of stepping through a manual mapping pass every time the lens changes. The set includes five focus rings covering a range of minimum focus distances plus one pre-marked iris ring, so a common set of primes can be swapped without re-mapping each one.

Order Imperial or Metric to match how the set is marked; both work with the same CTRL hardware. Teradek sells the two markings as separate parts.