165
Reference
10
Changing the Focusing Screen
Ec-A: Standard microprism
Ec-H: Laser-matte with scale
Lenses with a maxi-
mum aperture smaller
(higher f/number) than
f/5.6 will cause the
focusing screen’s
microprism to darken.
The scales at the
center and periphery
help you compose
shots for close-ups and
photomicrography.
Ec-B: New split screen
Ec-I: Laser-matte with cross hair
Lenses with a maxi-
mum aperture smaller
(higher f/number) than
f/5.6 will not cause the
focusing screen’s
microprism to darken.
Use the cross hair at
the center to focus.
Suited for photomicrog-
raphy and astrophotog-
raphy.
Ec-CII: All Laser-matte
Ec-L: Cross split screen
EOS-1N’s standard
focusing screen.
Focus with the vertical
and horizontal splits.
Lenses with a maxi-
mum 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-1V’s standard
focusing screen. The
CIII logo is imprinted on
the lug to distinguish it
from the Ec-N.
EOS-3’s standard
focusing screen.
Ec-D: Laser-matte with grid
Ec-R: New Laser-matte
Ideal for architectural
photography and photo
duplication work.
EOS-1N RS’s standard
focusing screen.
Ec-series Interchangeable Focusing Screens
Содержание EOS-1
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