Canon manual 158

3Custom Function SettingsN

C.Fn-00 Focusing Screen

The camera provides interchangeable focusing screens. This Custom Function must be set so that the exposure correction matches the respective focusing screen.

0:Ee-A

1:Ee-D

2:Ee-S

About focusing screen characteristics

Ee-A: Standard Precision Matte

Standard focusing screen that comes with the camera. Provides good viewfinder brightness and enables easy manual focusing.

Ee-D: Precision Matte with grid

This is the Ee-A with a grid. It makes it easier to align horizontal or vertical lines.

Ee-S: Super Precision Matte

Focusing screen which makes manual focusing easier than with the Ee-A. Effective for users who mainly focus manually.

Super Precision Matte Ee-S and lens’s maximum aperture

Optimum for the lenses whose maximum aperture is f/2.8 or larger. With the lenses whose maximum aperture is smaller than f/2.8, the viewfinder looks darker than attaching the standard focusing screen Ee-A.

Since the Ee-A focusing screen comes with the EOS 5D, C.Fn-00-0 is already set.

To change the focusing screen, follow the instructions that comes with the focusing screen.

The C.Fn-00 setting is not included in the registered camera settings (p.148).

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