Promaster 8306 キヤノンフラッシュ用光学スレーブトリガー

Finally found a reliable way to trigger my off-camera flash without any radio interference. The detection range is surprisingly good, even when the master flash is slightly behind an umbrella.

The optical sensor picks up my on-camera flash from across the room without fail, and the hot shoe mount feels solid on my Canon speedlite. Set it up in under a minute and it’s been firing consistently every single time during my shoot. Exactly what I needed for a simple two-light setup.

Finally, a way to keep my off-camera strobes synced without buying a radio system. The sensor picked up my on-camera flash from across the room without any delay. Works exactly as described for my Canon 430EX.