What the thread found

• Baseplate selection matters less than advance planning with focus puller to design the rig for quick conversion: place follow-focus motors on upper rods (never need repositioning), and consider a second wireless transmitter bracket for both studio and Steadicam® positions.
• Keep the sled fully cabled and assembled nearby; mark the baseplate and dovetail adapter to ensure the body sits roughly balanced on first mounting; decide on mode early, before rehearsal, as last-minute mode switches consume the most time.
• Practical baseplate solutions reported: ARRI plates that slide directly from the top stage to the head's ARRI plate (very fast with BUD-1 in the ARRI accessory system), Cam-Jam Cheese Plate with SOS plate, SAM-7 or SAM-8 with Betz Quick Release, or custom plates fabricated under an ARRI cage.
• Use of a cable clamp compendium (LMB) prevents rebuild of the rig between modes.
• With thorough prep, the swap takes under three minutes: remove viewfinder, handle, monitors; attach wireless transmitter to Steadicam® monitor via quick-release; leave remaining accessories cabled.

Depends on

• Switching speed depends on camera weight, accessory configuration, and whether a second transmitter bracket is available.

Gear in this thread

ALEXA 35catalog

Parts

Top Stage, Follow Focus, Base Plate

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