
This wireless flash controller transmits an infrared trigger (no wires needed), exposure and flash ratios to EX Speedlites. The wireless possibilities are exciting, especially getting the main flash off the camera. The ST-E2 also sports a powerful near infrared AF assist light, a welcome feature for EOS cameras lacking an AF assist light.
| Guide Number | Indoors: 12-15 meters/39.4 - 49.2 ft; Outdoors: 8-10/ 26.2-32.8 ft |
| Batteries | 2CR2 lithium (6V) battery x 1 |
| Dimensions | 62 (W) x 51 (H) x 80 (D) mm/2,4 (W) x 3,1 (D) in |
| Weight | 100 g/ 3.5 oz (excluding battery) |
| Compatibility | Type A EOS cameras (E-TTL, autoflash); Type B EOS cameras (Manual flash) |