2010Follow Focus forum
Comparing torque ratings of mechanical follow focus motors for handling stiff camera lenses
16 years old. Gear and prices may have changed since.
What the thread found
- The M-One motor generally delivers the highest torque and can handle stiff lenses better than other mechanical options.
- The Heden M28VP provides strong performance and better quality construction than older FMG motors, though it may struggle with extremely stiff lenses.
- The FMG motors are prone to slipping under load with stiffer prime lenses.
- Testing lenses before production and having rental equipment serviced or regreased can help manage issues with stiff focus mechanisms.
- Among tested motors, the ability to move a Zeiss Super Speed 18mm lens serves as a practical benchmark for adequate motor torque.
- Motor selection involves three key considerations: power output, mounting compatibility, and operational noise levels.
Depends on
- Experiences span roughly a decade, with technology and equipment specifications potentially changed since original use.
- Personal preferences and specific lens collections vary significantly between users, affecting real-world performance assessments.
- No direct head-to-head testing of all motors under identical conditions was documented.
- Experiences with Preston MD motors mentioned but not directly comparable to Heden and M-One.
- SLD motors discussed briefly with limited detail on performance characteristics.
Parts
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