Ask Our Experts800-952-1815
Hello, Log InAccount & Orders
Video Chat with a Photography Expert - Live
Key Features
- For Speedmaster L-858D-U Light Meter
- Adds Godox Radio Triggering
- Frequency: 2.4 GHz
- Access to 32 Channels and 16 Groups
Add a 2.4 GHz Godox-compatible radio triggering protocol to your Speedmaster L-858D-U light meter with this RT-GX Godox Transmitter Module from Sekonic. Able to be fitted into meter's housing, this module provides multiple functions beyond triggering, including access to 32 channels and up to 16 groups and Wireless IDs for remote triggering within a 98.4' range. This radio control also permits adjusting the modeling light power, supports high-speed sync (HSS) flash metering, and enables Godox users to more easily measure the ambient-to-flash light ratio and flash duration.
More DetailsSee any errors on this page?
Will this trigger a Canon ST-E3-RT?
Will this trigger a Canon ST-E3-RT?
Unfortunately, it will not. This is for the Godox X wireless radio system.
Date published: 2021-07-25
Will this work on a Godox V860iii speedlite?
Will this work on a Godox V860iii speedlite?
As of the time of this writing (November 2023), the Sekonic RT-GX Godox Transmitter Module (B&H# SERTGX) is only designed to work in the Sekonic Speedmaster L-858D-U Light Meter (B&H# SEL858DU). The module serves as an interface between the aforementioned light meter and Godox flashes and strobes using the Godox X radio system such as the Godox Ving V860III TTL Li-Ion Flash Kit for Sony Cameras (B&H# GOV860IIIS).
Date published: 2023-11-27
will this work on the L-358 Meter?
will this work on the L-358 Meter?
I do not have that model light meter so I fon't know. It works flawlessly wuth the 858 meter.
Date published: 2022-01-03
Before I buy this, I need to know if this will ...
Before I buy this, I need to know if this will work with the Sekonic L-358? I see someone said yes, but when I did a search online everything I'm seeing it only works with the L858D-U.
No, The following unit is designed and made for the speedmaster L-858D-U Light Meter.
Not the L-358.
Date published: 2022-03-18
Are Sekonic L-858D and RT-GX compatible with ...
Are Sekonic L-858D and RT-GX compatible with Godox AD100Pro?
The Sekonic RT-GX Godox Transmitter Module in the Sekonic L-858D Speedmaster Light Meter is compatible with the Godox AD100pro Pocket Flash.
Date published: 2023-03-15
Will this work on the L-558 meter?
Will this work on the L-558 meter?
No, the Sekonic RT-GX Godox Transmitter Module will only work with the following models.
Lowepro DP Kit
Sekonic Speedmaster L-858D-U
Date published: 2023-08-14
Will this work on the Sekonic L-758DR?
Will this work on the Sekonic L-758DR?
Can confirm it does not work with the L-758DR
Date published: 2023-06-09