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FLASH PHOTOGRAPHY WITH THE
A-1
AE Flash Photography (Full Auto- flash Photography)
There are seven special automatic flash units, the Canon Speedlites 577G, 533G, 199A, 188A, 177A, 155A and 133A, which make AE flash photography possible with the A-1. Just slip the Speedlite 577G's or 533G's sensor unit or the 199A, 188A, 177A, 155A or 133A into the accessory shoe, switch on the flash, focus and shoot. It does not matter whether the AE mode selector is set to Av or TV. Except for “B”, whatever the shutter speed set, as soon as the pilot lamp of the Speedlite comes on, the A-1 switches to the X synchronization speed of 1/60 sec. – automatically. The Speedlite's sensor controls the light output for perfect automatic exposure within auto working ranges. And just as automatically will the camera switch back to the shutter speed actually set on the dial as soon as the pilot lamps goes out. The viewfinder offers you full information needed for flash photography. Moreover, when the main switch of the Speedlite is turned off, the flash circuitry is completely cut off and the A-1 switches over to function as an AE control camera without detaching the Speedlite or sensor unit from the accessory shoe.