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2014Follow Focus forum

Motor torque and speed for vintage anamorphic lenses in cold weather

12 years old. Gear and prices may have changed since.

What the thread found

  • Motor torque depends not only on the motor itself but also on how much current the motor driver can supply.
  • The DM1 and DM2 models offer more torque than the DM1X, though they operate at slower speeds.
  • Vintage anamorphic lenses can become extremely stiff in freezing conditions and may not rotate even with motorized follow focus systems.
  • Analog motor systems like Bartech with an SLD100 motor can serve as backup when powered motorized systems struggle with cold temperatures.
  • Extremely stiff lenses can be difficult to turn manually, indicating the mechanical resistance exceeds what some motor systems can overcome.

Depends on

  • No published torque or speed specifications were found for the M-One Digital motor.
  • The discussion involves only one anecdotal account of cold-weather motor failure with specific vintage anamorphic lenses.
  • The actual specifications and capabilities of the M-One Digital motor remain undocumented in the thread.
  • Cold temperature performance data applies to one particular job context and may not generalize to all conditions.

Parts

Follow Focus

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