EOS Dedicated TTL Off-Camera Shoe Adapter OA-2
For off-camera applications of Speedlite flash units, this adapter will accept one Speedlite and a connecting cord to the camera. Has 1/4" tripod thread on bottom
This accessory provides TTL or manual flash control, but is not compatible with E-TTL and will not support automatic flash on digital SLRs.
- Canon OA-2 Off Camera Shoe Adapter