Ec-series Interchangeable Focusing Screens

Ec-A: Standard microprism

Lenses with a maximum aperture smaller (higher f/number) than f/5.6 will cause the focusing screen’s microprism to darken.

Changing the Focusing Screen

Ec-H: Laser-matte with scale

The scales at the center and periphery help you compose shots for close-ups and photomicrography.

Ec-B: New split screen

Lenses with a maximum aperture smaller (higher f/number) than f/5.6 will not cause the focusing screen’s microprism to darken.

Ec-I: Laser-matte with cross hair

Use the cross hair at the center to focus. Suited for photomicrog- raphy and astrophotog- raphy.

Ec-CII: All Laser-matte

EOS-1N’s standard focusing screen.

Ec-L: Cross split screen

Focus with the vertical and horizontal splits. Lenses with a maximum aperture smaller (higher f/number) than f/5.6 will cause the focusing screen’s split portion to darken.

Ec-CIII: Laser-matte

Ec-N: New Laser-matte

EOS-1Ds, EOS-1D and

EOS-3’s standard

EOS-1V’s standard

focusing screen.

focusing screen. The

 

CIII logo is imprinted on

 

the lug to distinguish it

 

from the Ec-N.

 

Ec-D: Laser-matte with grid

Ec-R: New Laser-matte

Ideal for architectural

EOS-1N RS’s standard

photography and photo

focusing screen.

duplication work.

 

10

Reference

165