
Interchanging the Focusing Screen
Ec-series Interchangeable Focusing Screens
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Compatible with all EF lenses. Lenses with a maximum aperture smaller than f/5.6 will cause the focusing screen’s microprism to darken.
Compatible with all EF lenses. Ideal for architectural photo- graphy and photo duplication work.
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Compatible with all EF lenses. Lenses with a maximum aperture smaller than f/5.6 will cause the focusing screen’s split portion to darken.
Ec-CIII: Laser-matte
Ec-R New Laser-matte
Compatible with all EF lenses. The scales at the center and periph- ery help you compose shots for
Ec-I: Laser-matte with cross hair reticle
Use the cross hair at the center to focus. Suited for photomicro- graphy and astropho- tography.
Ec-L: Cross split screen
Compatible with all EF lenses. Focus with the vertical and horizontal splits. Lenses with a maximum aperture smaller than f/5.6 will cause the focusing screen’s split portion to darken.