This is a parametric set of lens-gears for a follow focus. Compatible with industry standard follow focus systems.
This is a parametric set of lens-g...ears for a follow focus.
Compatible with industry standard follow focus systems.
(Yes, these things cost an arm and a leg in shops.)
pitch: 0.8
tooth: 97
all gears have the same outer but different inner diameters.
(You you need not adjust your follow focus when switching lenses.)
All gears have their nominal inner diameter labeled onto them in 3d letters.
60mm = 56-60mm
62mm = 59-62mm
65mm = 62-65mm
68mm = 64-70mm
70mm = 67-70mm
example lens-sizes for a few DSLR lenses:
Name ....................... lens gear size (filter size)