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Small rectangular module with matte black finish and branded label

Sekonic

Sekonic RT-BR Broncolor Transmitter Module for L-858D-U Light Meter

SKU CH-6KNG-RRRX2

Transmitter module adds Broncolor radio control and flash-duration analysis to the L-858D-U meter

  • Measure flash duration to freeze fast action
  • Check flash-to-ambient ratio for precise exposure balance
  • Trigger up to 99 Radio Studio Addresses remotely
  • Control 40 Lamp Addresses and modeling lights wirelessly
  • Operate broncolor lights from up to 100ft away

Broncolor transmitter module for L-858D-U

The Sekonic RT-BR plugs into the L-858D-U SPEEDMASTER meter to give broncolor users a fully integrated metering workflow. Photographers can measure, control and analyse flash characteristics directly from the meter without extra accessories.

Full radio control up to 100ft

The module accesses all 99 Radio Studio Addresses and 40 Lamp Addresses, letting you trigger and adjust broncolor lights remotely. Modelling-light power can also be changed wirelessly, so you stay at the camera while fine-tuning the setup.

Adds flash-duration and mix analysis

The upgrade brings flash-duration measurement and flash-percentage readouts that the meter lacks on its own. Studio and product photographers who need to freeze motion or balance ambient light precisely will benefit; shooters who never use broncolor radio gear have no reason to add it.

Highlights

  • Measure flash duration to freeze fast action
  • Check flash-to-ambient ratio for precise exposure balance
  • Trigger up to 99 Radio Studio Addresses remotely
  • Control 40 Lamp Addresses and modeling lights wirelessly
  • Operate broncolor lights from up to 100ft away

Specifications

No published specifications for this item yet.

Questions about this item

Which radio addresses can the RT-BR module control on Broncolor lights?

The module accesses all 99 Radio Studio Addresses (1-99) and 40 Lamp Addresses (1-40, All) for remote triggering and modelling-light power control up to 100 ft away.

What meter body is required to fit the RT-BR module?

It installs only in the Sekonic L-858D-U SPEEDMASTER light meter; no other meter accepts this transmitter module.

How is the module installed in the L-858D-U, and what step is often missed?

Slide the RT-BR into the meter's dedicated module slot until it clicks, then run the meter's firmware update so the new radio menus appear.

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