Pro master ST1 User manual

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Parts Identification

Basic Operation

Receiver operation

Transmitter operation

Flash triggering

Parameter control triggering mode

Advanced Applications

Shutter release function

Troubleshooting Guide

Specifications

Firmware upgrade 23

Precautions

Receiver

Transmitter

Precautions

1. Do not attempt to disassemble, open, or repair this transceiver by

yourself.

2. Always use batteries of the same type, brand, and age. Always

replace both batteries at the same time. Do not combine different

types, brands, old, or new batteries. This could cause the batteries

to overheat, leak, or explode.

3. This product is not water resistant. Keep it away from rain, snow,

and high humidity areas.

4. Install the batteries in proper orientation as indicated in the

battery chamber.

5. Remove any batteries from the unit before storing the unit for long

periods.

This product is a wireless transceiver, meaning it can act as either a

transmitter or as a receiver. For the purpose of this instruction

manual it will be called a transmitter (master unit) when installed on

the hot shoe of a camera. It will be called a receiver (slave unit)

when a flash is installed or connected to it for remote operation.

Also, the words 'flash' and 'speedlight' may be used

interchangeably.

Dot matrix LCD display screen

Equipped with an AF focus assist beam (can be disabled)

Supports wireless shutter release for camera

Can individually set group A/B/C/D/E for flash exposure

compensation or flash output within Gr mode

Can individually set group A/B/C flash output within Manual mode

Can individually set exposure compensation and ratio within TTL

mode

Can individually set flash output, frequency, and flash number

within Multi mode

Functions as a basic flash trigger (max sync speed is

1/250S) with a standard hot shoe

Foreword

Here are some of the ST1's features:

Thank you for purchasing the [pro]master ST1 Transceiver.

The ST1C is an excellent tool for advanced wireless flash

photography using Canon cameras and speedlights. Its various

flash-mode functions, include: Gr, E-TTL II, M, Multi, and it

supports a maximum shutter sync speed of 1/8000S. It can also

control up to five flash groups.

From the transmitter you can directly control the flash mode,

output power, and focal length for each group.The ST1's

remote distance can reach up to 100m while supporting 15

wireless channels and 1auto channel.

Shutter Sync: first curtain sync, FP high-speed sync. Maximum

sync speed is 1/8000s

Supports exposure compensation and flash value lock function

Supports 15 wireless channels and 1 auto channel

Transceiver Mini Stand

Firmware can be upgraded through the USB interface

PC sync port

Please read this manual while also referring to your

camera and speedlight's instruction manuals.

Included items:

The ST1 comes with the following accessories.

Manual

ST1C Mini Stand

Parts Identification

PC sync port / USB

Interface

Hot foot

Parts Identification

①Status Indicator ②Power Switch ③Increase Button

④Battery Cover ⑤Decrease Button ⑥Confirm ‘OK’ Button

⑦Zoom/ Function Button ⑧Select/ Sync Button

⑨Mode Button/ Master or Slave Switch

⑩Locking Ring

Transmitter Display

Focal Length Area

Group Function Mode / Exposure Compensation

isplay Area

Number of groups Display Area

Flash mode Transceiver Mode

Channel Icon

Power Icon

AF Assist Beam Emitter State

Receiver Display

Transceiver Mode

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