Digital Potentiometers solve that problem by allowing you to control a voltage splitter with digital signals
1/4"-20 D-Ring Mounting Screw
The Raynox UAC2000 Universal Adapter for the CM-2000 macro lens fits cameras and lens adapter tubes with a front filter mount from 52mm to 67mm
For multi-camera productions
BOURNS SRP7028A-2R2M Surface Mount Power Inductor, SRP7028A Series, 2.2 µH, 8 A, 14 A, Shielded, 0.02 ohm Kopul M3025-V Digital Potentiometers solve that problemThis is a Surface Mount Power Inductor, SRP7028A Series, 2. 2 H, 8 A, 14 A, Shielded, 0. 02 ohm product from BOURNS with the model number SRP7028A 2R2MProduct details Product Range SRP7028A Series Inductance 2. 2H RMS Current (Irms) 8A Saturation Current (Isat) 14A Inductor Construction Shielded DC Resistance Max 0. 02ohm Power Inductor Case 7. 3mm x 6. 6mm x 2. 8mm Inductance Tolerance 20% Packaging Cut Tape Other details Brand BOURNS Part Number