Autofocus auxiliary lamp helps the camera to focus in low-light situations Includes diffuser Guide Number, (Formula): 32, (Guide Number = Distance × f-number) Power Source: 2x 1.5V "AA" batteries (alkaline, lithium, NiCad & NiMH) - NOT INCLUDED. Dedicated flash for (Multi-Interface) Series has vertical bounce Range of 0° - 90° and horizontal swivel Range of 10° - 60°
