SteadiHub
2022From a Facebook group: The Steadicam Group

Mounting the ARRI ALEXA 35 on Steadicam®: plate options and balance considerations.

What the thread found

  • Ready-made plates include the Apex A35 plate and the cam-jam solution, which position the camera lower but restrict access to lower rods; Panavision and Keslow offer solutions with lower rods, and the Keslow variant accepts older mini dovetail plates, allowing setup changes without rebuilding.
  • ARRI SAM-6 with screw-mounted Steadicam® or Apex plate saves approximately 1/8 to 3/8 inch in height and weighs slightly less than SAM-6 alone; SAM-7 was not yet available at the time; SAM-8 was also mentioned.
  • The longer SAM-6 provides greater balance travel for lenses of varying weight.
  • One operator fabricated a custom plate fitting directly into the Top Stage and the BUD-1 mount of the A35, eliminating the need for screw adapters, offering extended balance travel and 15 mm rods at both ends for a matte box.
  • Top rods instead of lower rods allow the flattest mounting geometry, but this approach does not suit every configuration.
  • The ALEXA 35 is light enough to run with an onboard battery and can be mounted using its flat shoulder rest plate.

Depends on

  • Rig configuration and whether lower rod access is required.
  • Lens weight variation affecting choice of SAM plate length.

Gear in this thread

ALEXA 35catalog

Parts

Top Stage

Same gear or parts

  1. 2026Eliminating vibration with the ARRI ALEXA 35 on Steadicam®: rigid mounting plate options to bypass the dovetail systemFacebookThe Steadicam Group
  2. 2026Mounting the RIA-1 wireless receiver on ARRI Trinity with ALEXA 35FacebookArri Artemis Trinity
  3. 2026Power distribution failure of D-Tap step-down splitters on a Venice 2 rig, and proper AKS accessory power supply methods.DisputedFacebookSteadicam operators group
  4. 2026Swapping an ARRI ALEXA 35 between tripod/studio and Steadicam® mounting: baseplate choice and fastest workflow.FacebookSteadicam operators group
Original thread on Facebook (group members only)Ask about this threadThe answer cites the archive