Manual Flash: 1.Circuit design: IGBT 2.Flash model: M, S1, S2 3.Recycle time ... 24,28,35,50,70,80, 105mm Advanced Manual Camera Flash YN-560 for Canon and Nikon and Olympus and ... Pentax: Advanced Manual FlashFeatures:YN-560 is brand new flash specially designed for professional creative ... Circuit design: IGBTGuide Number: 58 meters, ISO100, 105MM)Flash model: M, S1, S2Zoom Range: 24,28,35, ...