Digital Auto Slave Flash with Bracket Set For The Canon Powershot A10, A20, A30, A40, A60, A70, A75, A80, A85, A95, A100, A200, A300, A310, S1 IS Digital Cameras with Exclusive FREE Complimentary Super Deal Micro Fiber Lens Cleaning Cloth Auto Pre-flash Sensor for red eye Flash Ready Light indicator Compact, lightweight design is ideal for travel Enables use of smaller apertures for increased depth of field Improves color, depth and evenness of lighting up to 34 feet or more