The Sony HVL-F43AM is a high quality, reliable flash gun compatible with any Sony DSLR or SLT camera. A moisture and dust resistant design allows the flash to be used in tough shooting environments, Sony’s exclusive Quick Shift Bounce system allows the flash head to be rotated quickly for use with vertical photography, a fast recycling time of 0.1-2.9 seconds allows you to take more shots in less time, Wireless ratio control for up to 3 additional flash units is ideal for studio and creative photography, built in bounce sheet enhances flash effects, all in a compact and lightweight body.