¡ If you do not change the focusing screen that came with the camera, you need not change C.Fn-00-1 factory setting.
¡To change the focusing screen, refer to the instructions that came with the focusing screen.
¡The Ec-A, Ec-B, Ec-I, and Ec-L focusing screens have a prism at the center. A correct exposure reading cannot be obtained with evaluative metering or spot metering based on the center area where there is a prism. Use centerweighted averaged metering or off-center spot metering with such focusing screens.
Ec-series Interchangeable Focusing Screens
Ec-A: Standard microprism | Ec-H: Laser-matte with scale |
Ec-B: New split screen | Ec-I: Laser-matte with cross hair |
Ec-CII: All Laser-matte | Ec-L: Cross split screen |
Ec-CIII: Laser-matte | Ec-N: New Laser-matte |
Ec-D: Laser-matte with grid | Ec-R: New Laser-matte |
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