For side mounting of flash unit
Hand-held UL flash through instant disengagement feature
Additional power source and rotating handgrip
Flash output: +/- 200 / +/- 350 with external SD-8A
Source: 4 batteries (alkaline/NiCd, type LR6/AM3)
Dimensions: 273 x 111 x 78 mm
Weight: 460g (ex. batteries)