Mount Shoe Guide No. 111.5' (33.99 m) ISO100 at 35 mm position Angle of Coverage 104° - 12°Wide-Angle Adapter: 122° - 104° Vari-Power 1/1 - 1/128 TTL Dedication Yes Bounce Head Yes Swivel Head Yes Coverage 17 mm - 200 mm (Full frame) Zoom Head Full frame: 17 mm - 200 mm Off Camera Terminal Proprietary Recycle Time Approximately 2.3 seconds - 4.5 Power Source 4x AA Alkaline, Lithium, NiCad, Rechargeable Ni-MH Batteries Dimensions (WxHxD) 3.1 x 5.7 x 4.4" / 7.87 x 14.48 x 11.18 cm Weight 14.8 oz / 420 g