ProMaster SM1S Speedlight Master Transmitter for Sony M.I.S.

ProMaster SM1S Speedlight Master Transmitter for Sony M.I.S.ProMaster SM1S Speedlight Master Transmitter for Sony M. I. S. ProMaster SKU: 4959 Helix SKU: PR49591 Overview The ProMaster SM1S Wireless Speedlight Master Transmitter 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

ProMaster SM1S Speedlight Master Transmitter for Sony M.I.S.

ProMaster SKU: 4959 | Helix SKU: PR49591

Overview

The ProMaster SM1S Wireless Speedlight Master Transmitter 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. 

The SM1S utilizes an internal Li-Ion, rechargeable battery as its power source. The unit is incredibly efficient and the battery lasts a very long time. Plus, the SM1S can operate while connected to a charger, for times when you need even more run time. OK, wait a minute, let's explore this a bit more. Let's say your SM1S has sat dormant for 6 months and then you decide to use it extensively for a couple of days. Near the end of day-two you suddenly notice its battery is getting low and realize you had never thought about charging it. Perhaps you can take a 2-hour break and plug it into a wall outlet, since that's all it takes to bring the battery back up to 100%. But, maybe that's not a good option. It's cool. You can use the SM1S while it's plugged-in for charging. Maybe having a cord running to a wall outlet is not convenient. No worries! Grab a common power bank (like the one you use for your phone) and simply connect that to the SM1S. You'll be golden! The USB micro-b to USB-A charging cord is included with the SM1S and is s common cord that can be bought at any corner store (in case you forget it at home). In fact, you may already have one or a dozen laying around from other devices. 

Specifications

• 2.4GHz radio operating frequency
• Wireless range: 325' / 100 m
• 15 Channels + auto
• 3 Groups A/B/C with ratio control (up to 15 units in a group)
• Manual output power range: 1 - 1/128th
• Net Weight: 3.6 oz / 102 g
• Dimensions: 3 5/16" x 2 9/16" x 1 11/16" (84.1 mm x 65.1 mm x 42.9 mm)
• Power Source: Integrated, rechargeable Li-Ion battery (3.7 V 1,000 mAh)
• Charging input: DC 5V 0.5 A
• USB port: Micro B
• ProMaster 5398 USB firmware downloading cable for computer connection

Item Includes