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Flying an ARRI ALEXA 65 on Steadicam®: weight, power supply voltage and mounting plate options
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- The ARRI ALEXA 65 requires 24–32 V input; the Steadicam® sled provides 24 V output via a dedicated camera cable and matching connector.
- Rental houses often supply proprietary 24 V V-Lock batteries for ALEXA 65 operation, though one operator used a 24 V onboard battery instead.
- The camera weighs approximately 10.5 kg, comparable to an ARRI BL3 with 400 ft magazine (about 13 kg) and an Arricam ST (about 11.5 kg).
- A PRO Arm carrying the ALEXA 65 may require the strongest available springs for proper balance.
- The ALEXA 65's thin factory mounting plate is incompatible with standard Steadicam® adapters; rental houses typically supply a dedicated Steadicam® plate.
- A Railway plate with center adapter (cam-jam) offers an alternative but raises the camera approximately one 15 mm rod height higher on the rig.
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- Compatibility depends on sled model and available power output (24 V mandatory per camera specification).
- Mounting solutions vary by rental house inventory and camera height requirements for the shot.
- Spring strength requirements depend on total system weight and operator preference.