District Camera

Promaster 8306 Optical Slave Trigger for Canon Flashes

Promaster 8306 Optical Slave Trigger for Canon Flashes - Main image
$12.19 $19.99 In stock

Category: Lighting Triggers

The ProMaster 8306 Optical Slave Trigger is a lighting trigger designed for use with Canon flashes. It is intended to help fire a compatible flash when it detects the light from a master flash, offering a simple way to add wireless triggering to a lighting setup. ProMaster carries a variety of trigger and conversion adapters to support different flash configurations.

  • Optical slave trigger designed for use with Canon flashes
  • Fires the connected flash in response to a master flash burst
  • Suitable for off-camera lighting setups
  • Part of the ProMaster line of lighting triggers and adapters
Payment options

The checkout page shows the payment options available for your order.

Processing & transit

Compare the processing window with the estimated transit time.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
Refund processing

Merchant processing and bank posting are separate steps.

Please contact us for the refund processing timeframe before returning an item.

View policy
Shipping services

Use the details for the destination and service you select.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Return terms

Follow the stated return method and include your order reference.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (5.0 / 5 · 5 reviews)

Isabella ★★★★★

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.

Emma ★★★★★

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.

Matthew Z. ★★★★★

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.