Kenko AB600-R Color: BLACK I purchased this new, but it has been sitting unopened. The "AI Flash AB600-R" is a clip-on strobe equipped with an "auto bounce function" that automatically measures and assists with the bounce angle. It allows for auto bounce to the ceiling and the left and right walls (3 directions). Regardless of whether it's in auto or manual mode, it also features an "angle lock function" that maintains the set bounce angle even when switching between vertical and horizontal orientations. It boasts a guide number of 60 (at ISO 100, 200mm), providing ample light output. Wireless communication supports both optical and radio wave methods. This allows for various wireless shooting options depending on the equipment and environment. It uses 4 AA batteries for power. #Kenko Tokina #Kenko