Bought as an alternative Zun plastic diffusers for system flashes the Mini softbox. In particular, directly on the camera is achieved a much softer light than with other options. From the size so that it does not reach into the field of lenses from 25mm focal length. Works well with TTL or manual flash control, not suitable for flash control sensor on the system by lightning, as it is shaded by the reflector. Is and should not be a substitute for Studio softboxes, but a great accessory for rapid flexible use with very good results.