What the thread found

• Many Trinity operators carry a dedicated lightweight focus system (WCU-4 with cforce mini RF and mini motors, Teradek RT with MDR.X, or Preston MDR4) in their Trinity rental kit, as an MDR mounted in the gimbal head adds weight and complicates switching between Trinity and studio setups.
• A short, deep, bottom-heavy build performs significantly better than configurations with top-mounted receivers.
• Early communication with the focus puller is essential; a compromise solution is for the AC to keep their rental for other work and use only the lightweight system for Trinity shots, or operators explicitly decline large motors and receivers on the Trinity.
• Distance-measuring accessories such as Cinetape and Focus Bug, plus accessory brackets ('horns') on the build, typically require an additional 500 g of counterweight, which can be a larger issue than the motor systems themselves.
• Alternative solutions include using Tilta Nucleus M or N as a backup focus system, or Heden motors set to match the speed of faster Preston motors.

Depends on

• Depends on AC's existing rental inventory and established workflows.
• Depends on total camera and lens weight, and acceptable rig balance.
• Depends on whether distance-measuring tools are in use.

Gear in this thread

MDR

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