Hahnel Viper Wireless TTL Flash Trigger for Canon

Check out the Hahnel Viper Wireless TTL Flash Trigger for Canon's Key Features

(Hahnel CHLVIPTTLC)

• Control up to three groups of flash guns, each group comprising of one or more flash units
• TTL, Manual and Multi (Stroboscopic) mode control
• LCD indicates user-friendly status of each group
• TTL Pass Through - hot shoe on transmitter allows E-TTL speedlight's or other TTL systems such as Canon ST-E3 or Tuff TTL to be combined with the Viper
• DCM (Digital Channel Matching) to provide reliable connections
• Over 100m range
• microUSB socket for firmware upgrade
• Compatible with original speedlights
• Easily adjust mode and values on a group by group basis

Overview

The Viper Wireless Group Flash Trigger for Canon Cameras from hahnel provides multi-group wireless flash control to Canon cameras. It operates with a 2.4 GHz frequency with a range of 328'. The system uses Digital Channel Matching to quickly and reliably connect up to three groups of receivers with a transmitter and avoid interference from other devices.

Flash output can be set via the transmitter for each group from 1/1 to 1/128 with intermediate stops of 0.3 and 0.7 for more exacting control over your lighting. This is all shown on the transmitter's backlit LCD display. Additionally, a manual mode is available for setting options on the flash itself and there is a pass-through hot shoe on the transmitter for TTL control of a mounted flash.