137TTL flashUsing TTL flash with the Contax 645 camera and Leaf Credo backresults in a two f-stop overexposure. When using TTL flash, the exposurecompensation on the flash unit must be set to –2 f-stops.This overexposure happens because the CCD element reflects lightdifferently than film and this cannot be communicated to the Contax.Image OrientationThe CCD in the Leaf Credo back is positioned in a landscape orientation.However, the Leaf Credo back has an internal sensor that detects whenit has been rotated. Thus, when the camera is rotated and an image iscaptured in portrait position the image appears correctly oriented on theLCD and in the Capture One application.17.4 Flash Lead ConnectionA flash cable is always connected to the Contax 645 camera body.The flash sync cable must not be connected to the camera back whenused on a Contax 645. The flash sync connector on the Leaf Credo backis only intended for use with large format adapters.
