Af Graphic R1 Flash Light for Canon Ae-1 Ae-1 Program A-1 F1 Av-1 Al-1 At-1 SLR Camera Light diffuse angle: Vertical 40 x Horizontal 60 Recycle time : 5 sec - 7 sec (base on 2 pcs FULL-POWER alkaline batteries) Power Supply : 2 x AA batteries (not included) Dimension: 65mm x 60mm x 98mm Compatibility Canon AE-1 AE-1 Program A-1 F1 AV-1 AL-1 AT-1 SLR Camera