The technical details behind this Speedlight Transmitter
ProMaster MS1S Speedlight Transmitter – Sony works over a long-range (325′ 100m) to control a ProMaster 200ST-R Speedlight as a slave flash. It can fire the slave(s) in up to 3 groups with up to 15 slaves per group using features such as TTL exposure control, slow sync. HSS high-speed sync., flash bracketing, exposure compensation, and more.
Key features
2.4GHz radio operating frequency
Wireless range: 325′ / 100m
15 Channels + Auto
Top three Reasons we think you will love this Speedlight Transmitter
Incredibly efficient
Great Performance
Our experts opinion
ProMaster MS1S Speedlight Transmitter – Sony offers great features and amazing value for money.

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