2015Follow Focus forum
Resolving focus tracking inaccuracy in Bartech wireless follow focus system
What the thread found
- Play in follow focus systems can be reduced by increasing motor torque settings
- Lens stiffness and friction characteristics affect focus tracking accuracy, with slippery lenses sometimes showing improved precision
- Resolution bit depth differences between systems relate to handset and receiver versions rather than motor specifications
- A 16-bit capable system requires both a handset with iris upgrade and a V2-1 receiver model
Depends on
- Testing was done with specific lens types and may not generalize to all lenses
- The relationship between lens friction and accuracy improvement was observed anecdotally rather than systematically tested
- Upgrade to stronger motors was suggested as a potential solution but not confirmed to fully resolve the issue
Parts
Same gear or parts
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