Barrow Mods
Barrow Mods 12V DC 5.5mm/2.5mm to 6Pin Hirose Cable for B4 Lens Servo
Powers B4 lens servos from a 12 V DC source via 5.5 mm/2.5 mm plug to 6-pin Hirose connector
- Powers B4 lens servos from standard 12 V DC sources
- 5 mm by 2.5 mm barrel plugs into common batteries or supplies
- Female 6-pin Hirose mates with Fujinon, Nikon, Angenieux, Schneider servos
- Enables Quick Zoom, Cruise Zoom and memory functions on compatible lenses
- Works with Panasonic AF100, GH series, Olympus PEN, OM-D EM-5, Sony NEX cameras
DC 5.5mm to 6-pin Hirose cable
This cable adapts a male 5.5 mm by 2.5 mm DC plug to a female 6-pin Hirose connector. It is built to deliver 12 V power from a battery or AC-to-DC supply to the servo drive of a B4-mount lens. The assembly targets camera operators who run 2/3-inch broadcast zooms on mirrorless or cinema bodies. It carries the current needed for zoom, focus and iris motors without additional regulation.
For B4 lens owners on mirrorless rigs
The cable suits shooters powering Fujinon, Nikon, Angenieux or Schneider 1/3-inch, 1/2-inch or 2/3-inch B4 servos from a standard 12 V source on Panasonic AF100, GH-series, Olympus PEN, OM-D E-M5 or Sony NEX cameras. It will not help users whose lenses use a different pin count or voltage, nor those needing to power the camera body itself. Operators requiring multi-voltage distribution or integrated battery plates should look at dedicated power boxes instead.
Handles standard B4 servo loads
The lead comfortably runs the zoom servo functions including quick zoom, cruise zoom and memory presets on compatible lenses. It draws operating current from any 12 V battery or AC-to-DC 12 V supply the user provides. Headroom ends at the connector rating and the supply's own current limit; the cable has no built-in fuse or voltage conversion. Extended runs or high-torque zooms may demand a heavier gauge than this assembly provides.
Highlights
- Powers B4 lens servos from standard 12 V DC sources
- 5 mm by 2.5 mm barrel plugs into common batteries or supplies
- Female 6-pin Hirose mates with Fujinon, Nikon, Angenieux, Schneider servos
- Enables Quick Zoom, Cruise Zoom and memory functions on compatible lenses
- Works with Panasonic AF100, GH series, Olympus PEN, OM-D EM-5, Sony NEX cameras
Specifications
No published specifications for this item yet.
Questions about this item
What power source do I need to run the lens servo through this cable?
You need a 12 V DC supply with a 5.5 mm / 2.5 mm barrel plug — either a 12 V battery pack or an AC-to-DC 12 V adapter.
Will it power a B4 servo on my Panasonic GH3 or Olympus OM-D EM-5?
Yes, the Hirose 6-pin female connector fits Fujinon, Nikon, Angenieux or Schneider B4 servos used on GH3/4/5, OM-D EM-5 and other listed cameras.
How can I confirm the servo is receiving power after I connect the cable?
The servo’s Quick Zoom, Cruise Zoom and Memory functions should operate normally when the 12 V source is switched on.
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