- Compatible with Canon E-TTL / E-TTL II
- Twin-Tube Design & 12 Custom Functions
- Guide Number: 45.9′ at ISO 100
- Coverage: 80° Vertical & Horizontal
- LED Focusing Lamps
- Wireless Master TTL Functionality
- Recycle Time: 0.1-5.5 Seconds
- High-Speed & 2nd Curtain Sync
- Runs on 4 AA Batteries
- Attaches to Select Canon Macro Lenses
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