Guide Number, (Formula): 35 Meters, (Guide Number = Distance × f-number) , Power Source: 4x 1., 5V AA batteries (alkaline, lithium, NiCad & NiMH) Flash modes: M, S1, S2, Multi. Includes Vertical bounce Range of 0° - 90° and horizontal swivel Range of 0° - 360°. Autofocus auxiliary lamp helps the camera... This flash will attach directly to your cameras hot shoe. Leica D-Lux (Typ 109) Digital Camera, Black with CF D Flash {12.8MP} 18471 Wireless Slave Flash With Diffuser Leica CF D Flash For Leica D-Lux (Typ 109 Leica D-lux 8 Includes Diffuser & Reflecting plate This is a demonstration store. You can purchase products like this from Leica Store Miami. Replacement flash for the Leica D-Lux (Typ 109) compact camera Flash modes: M, S1, S2, Multi. This flash can also flash wirelessly if triggered by a second similar flash.