These focusing rails are essential accessories for macro photography, which require precise distance modifications and a steady hand, as well as other situations where accurate camera positioning is crucial. Two 6" rails allow movement in four directions, right, left, forward and backward. Mounts on, and accepts 1/4 thread screws, and will fit most tripods and stands. Positive locking knobs assure rock-steady focus.
This excellent quality rail is for use with all digital and film SLR cameras and is compatible with most Canon, Nikon, Minolta, Olympus and Pentax macro and EOS bellows, macro shot extension tubes, or macro lenses such as the Canon FD and FL
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Exclusively for the EOS 40D, this focus screen is optimized for wide-aperture lenses from f/1.8 to f/2.8. Areas that are slightly out of focus appear more out of focus, making it easier to tell when focus is right-on. Ideal for users who frequently manually-focus in dim light with fast lenses.
