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Sekonic RT-GX Flashpoint and Godox Transmitter Module for L-858D-U SPEEDMASTER Light Meter

SKU: SK401628 MFR: 401-628
$157.00
$204.10
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Key Features

  • Seamlessly integrates with your Sekonic L-858D-U SPEEDMASTER light meter.
  • Expand your light meter capabilities with Flashpoint & Godox transmitter module.
  • Achieve precise flash triggering with reliable Godox transmitter technology.
  • Compact & lightweight design adds minimal bulk to your existing light meter setup.
  • Multi-function meter type broadens creative control in diverse shooting scenarios.
  • Enjoy enhanced durability & accuracy for consistent, professional results every time.
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Q&A

Questions & Answers

ANTHONY B : Will it fit an older L-358 Meter?PHILIP H : No. It does not fit that meter.RICK G : Hi, It won’t. It is a different size. It won’t work with the older meters. RickDAN W : Unfortunately no. It only fits the L858PAUL P : No,it is specifically designed for the Sekonic L-858D-U.RICHARD S : No sorry - made for the L-858D model only.Donald R : Sorry Anthony No ... only fits the 858D-U. All my lighting now is Godox and Flashpoint R2 so I purchased the 858 and the RT-GX. Its an amazing meter... Im selling my Pocket Wizards and 758DR.
Donald R : Is this compatible with the 758?WALTER G : NO just the L-858 maybeRICK G : NoJAE THOMAS S : it is only compatible with the 858.
Greg S : Will this Godox transmitter work with their Flashpoint brand of flashes?RICHARD S : Absolutely - working great with my Flashpoint AD300 Pro!RICK G : Yes it will! I Owen a Flashpoint V1 flashes, streaklight 360, xplor 600, and ad600 pro. It works great!MICHAEL D : Please see the link below for a reference of compatible flashes: <a href="http://www.godox.com/EN/InstructionManual/Sekonic_Godox_Flashpointsystem_compatibility_test_result_20201012.pdf" target="_blank">http://www.godox.com/EN/InstructionManual/Sekonic_Godox_Flashpointsystem_compatibility_test_result_20201012.pdf</a>

Reviews about this item

Review Summary

2022-05-17T12:36:53

Rated 5 out of 5

Recommended

Works great. Recommended.

CHARLES J.

2022-04-29T15:07:03

Rated 5 out of 5

Good

Works as it meant to be ????

MAMOON A.

2021-04-28T08:16:34

Rated 5 out of 5

Makes the light meter even more useful

This has got a lot of use already to control my AD200s from my light meter. It speeds up workflow considerably especially when you don?t have to keep walking back to the camera to attach and detach the trigger. I am very happy with it

Jonathan H.

2021-04-22T09:50:24

Rated 5 out of 5

Simplicity in an Upgrade

Plug and Play. Everything worked perfectly out of the box. The meter detected the card and I've been using it with no issue.

TOM J.

2021-04-19T08:55:26

Rated 5 out of 5

Free you light meter from sync cords!

This product works like a charm. It makes using a light metter with high speed sync easy. No issues at all with product or shipping. Arrived a day earlier than promised.

DANIEL T.

2021-04-11T18:46:24

Rated 4 out of 5

I don?t know yet I can?t download the software to upgrade my flash.

I am having a hard time trying to download the firmware to upgrade my flash. If I can get it to work, I think it?ll be great asset to my lighting and camera set up.

PATRICK L.

2021-02-19T09:24:09

Rated 5 out of 5

Sekonic

Game changer

ANTHONY H.

2021-02-01T13:21:01

Rated 5 out of 5

facil de configurar

fácil de instalar, funciona muy bien

OSCAR V.

2020-12-02T07:44:26

Rated 5 out of 5

If you meter and use Godox in your work this tranmitter is right for you.

I was able to work around not having this transmitter for years, but now it just works. It saves me time and make my work more streamlined. I don't need a separate remote to trigger the flash.

Mark J.

2020-12-02T07:24:58

Rated 5 out of 5

Much needed product

I will begin by telling you that it’s a great product. If you are using Flashpoint or Godox strobes, this is a must have product. When you are trying to balance your lighting this makes it easier and faster to determine the amount of light coming from each strobe. Before this unit was available I had put together a clumsy system that took a lot of time and effort to use. One thing the instructions, that comes with the unit, does not tell you is the Firmware must be level 17 for it to work.

Leonard T.

2020-12-01T09:26:06

Rated 5 out of 5

Game Changer!

Fantastic! This makes metering your Godox or Flashpoint strobes or speedlights so easy now. The Sekonic L-858D-U Light Meter just got a whole lot easier to use and is now actually fun to use when measuring light output. I no longer have to carry around a trigger around or constantly have to remove the trigger from the camera hot shoe! I am able to control all of my light groups power and modeling lights all from my light meter now! This a game changer! I would purchase again in an instant! Highly recommend!

RICHARD S.

2020-11-27T07:34:54

Rated 5 out of 5

Awesome Trigger Moudule!

Works great! It so awesome to trigger my flashpoint stones & flashes fro my Sekonic L858 light/flash meter!??

Rick G.

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Sekonic RT Module Specifications

General

General

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  • Meter Type

    Multi-Function

  • Compatibility

    L-858D-U SPEEDMASTER Light Meter

Physical Details

Jump to...
  • Dimensions

    1.2 x 0.4 x 1.2" / 3 x 1 x 3 cm

  • Weight

    3.2 oz / 90.7 g

  • UPC Code

    4962294012069

About Sekonic RT Module

FEATURED REVIEWS

Much needed product

By Leonard T.

I will begin by telling you that it’s a great product. If you are using Flashpoint or Godox strobes, this is a must have product. When you are trying to balance your lighting this makes it easier and faster to determine the amount of light coming from each strobe. Before this unit was available I had put together a clumsy system that took a lot of time and effort to use. One thing the instructions, that comes with the unit, does not tell you is the Firmware must be level 17 for it to work.

Game Changer!

By RICHARD S.

Fantastic! This makes metering your Godox or Flashpoint strobes or speedlights so easy now. The Sekonic L-858D-U Light Meter just got a whole lot easier to use and is now actually fun to use when measuring light output. I no longer have to carry around a trigger around or constantly have to remove the trigger from the camera hot shoe! I am able to control all of my light groups power and modeling lights all from my light meter now! This a game changer! I would purchase again in an instant! ...

View full Review

Find the perfect balance in your photography lighting with the RT-GX Flashpoint and Godox Transmitter Module for the L-858D-U SPEEDMASTER Light Meter. This innovative product, a result of a strategic collaboration between Godox and Sekonic, offers a fully integrated light metering workflow for Godox users. It's designed to revolutionize the way you measure, control, and analyze flash characteristics, making it an essential tool for every professional photographer.

The Sekonic RT-GX is more than just a transmitter module; it's a tool that simplifies the process of crafting the perfect light in every image. It allows you to dial in your lighting recipe swiftly, helping you achieve your final image with exacting precision.

This high-quality module is fully compatible with Godox, offering all 32 channels (1-32), 16 groups (A-F,0-9), and Wireless ID's to remotely trigger your Godox compatible lights from up to 100ft (30 meters) away. You can also wirelessly control the power of modeling lights, adding to its user-friendly features.

With the RT-GX, High-Speed Sync (HSS) flash metering is no longer a guessing game. Simply input your ISO and shutter speed, and the module will do the rest. It also allows you to measure the percentage of flash in your images, ensuring the desired mix of ambient and flash. Plus, you can measure flash duration to understand how much stopping power your lights have, whether you're capturing an athlete in action or a fashion model's flowing gown.

Compact and durable, the RT-GX Flashpoint and Godox Transmitter Module for the L-858D-U SPEEDMASTER Light Meter is a game-changer in the world of professional photography. It's not just a product; it's a community of supportive and active Godox users sharing lighting diagrams, images, and behind-the-scenes setups. With Sekonic, you're not just getting a product; you're joining a community of passionate photographers.

Sekonic RT Module Features

  • Full Radio Compatibility
  • HSS Flash Metering
  • Next Level Flash Analysis

Product Documents

User Manual

Key Features

  • Seamlessly integrates with your Sekonic L-858D-U SPEEDMASTER light meter.
  • Expand your light meter capabilities with Flashpoint & Godox transmitter module.
  • Achieve precise flash triggering with reliable Godox transmitter technology.
  • Compact & lightweight design adds minimal bulk to your existing light meter setup.
  • Multi-function meter type broadens creative control in diverse shooting scenarios.
  • Enjoy enhanced durability & accuracy for consistent, professional results every time.

What's in the box:

  • RT-GX Godox Transmitter Module
  • Sekonic 1 Year Limited Warranty with 2 Year Extension Upon Online Registration