Leaf shutter lenses are equipped with an internal shutter. When set on X, leaf shutterlenses charge quickly and are capable of high shutter speeds (1/800 sec.) with flashsynchronization during daytime shooting. By merely pressing the shutter button, theleaf shutter will automatically charge, allowing for rapid photography.When the leaf shutter lens is attached, the letters “ ” will appear in the main LCDdisplay. (The leaf shutter icon will also appear).When using settings “P” (Program AE), “Av” (Aperture priority AE) or “Tv” (shutterpriority AE), it is possible to change to focal plane shutter photography.Custom settings (C-17 page 85)Attaching a Leaf Shutter LensManual focusing using the focus mark(Focus confirmation method)With this camera, the focus mark lights in the viewfinder’s LCD when the picture isin focus. With the shutter release button half-pressed, turn the lens focusing ring tofocus on the subject. When the subject is in focus, the focus mark lights in theviewfinder’s LCD.If is lit in the viewfinder’s LCD, the camera is focused on a point behind the object.If is lit, the camera is focused on a point in front of the object.In focusTurn the focusing ring clockwise.Turn the focusing ring counterclockwise.Use the focus mark when taking photos in manual focus mode or using the M645manual lens.If you adjust focus using the focus mark with an M645 lens, make sure to open theaperture. You can use this function with a lens of f/5.6 aperture or higher.Manual Focus Mode (continued)CSM.UPL11114422225ftm