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Focusing Screen Selector Guide
TYPO A:
Mane/Fresnel
f~ld
wifh
3mm~
circular
split-Image rangelinder spot and
12mmcP reference
circle.
Rap.
l d and accurate focusing
.
Excellent lor general
photography.
Type
8: Mane/Fresnel flElld with 3mm41 fine-ground matte focusing spot and
12mm41 reference
circle.
Good for general photography. especially with long
lenses.
Type
C:
Fine-ground matte field with 4mm4J clear spot and cross
hair.
For
photomicrography. astrophotography and other high-magnilication
appllcat~ns.
using
parallax
focusing
on aerial
Images.
TYpo
D:
Overall fine-ground mane
liBld.
For specialized
close-up
photography and
for use with long
lenses.
Type
E:
Matte/Fresnel field with 3mm¢ fine-ground matte
spot,
12mm~
reference
circle.
and etched horizontal and ..
rllcallines.
Ideal for archnectural
photography.
TYpo G
:
Clear Fresnel
r~ld w~h
extra-bright
12rnm~
mlcroprlsrn focusing spot for
viewing and focusing
In
poor light. Four models
(G1-G4)
are available corre-
sponding
to
specific focal length lenses. Depth of
field
cannot
be
observed.
Type
H:
Clear Fresnel field with microprism focusing pattern over the entire screen
area.
Pennits rapid focusing on any part of the
screen
with optimum edge-la-edge
brightness
In
poor
light.
Available In lour models
(H1-H4)
corresponding to
particular localleng1h
lenses.
TYpo J
:
Mane/Fresnel field with central mlcroprlsrn focusing spot and
t2
mm</>
circle.
Good for general
photography.
Typo
K:
Combination of Type A and
J
screens.
Mane
/Fresnel
field
w~h 3rnm~ spl~
Image rangefinder
spot
surrounded by
lmm-wide
micnoprlsrn doughnut. Rapid and
accurate
focu~ng
for
subjects
with both straight
lines
and III-defined contours
.
Suitable
for
general
photography.
TYpo
L:
Same
as
Type A screen but with spln-lrnage rangeflnder line at a 45"
angie.
Best lor subjects
w~h
horizontal lines.
Type M:
Fine-ground
Fresnel field
with S.Smmq, clear spot and double cross half for
use
In parallax focusing on aerial Image, plus
millimeter
scales for calculation of
indMduaJ
magnification of objects or tor measuring ob;ects. Brilliant Image In
dim
light.
Su~bIe
for close-ups
.
photom~rography
and other
hlgh
-
magn~tlon
applications.
Type
P:
Same as Type K but with split-image rangefinder line at a 45° angle and
etched horizontal and vertical lines as an aid to composition
.
Rapid and
accurate
focusing for
subject
with horizontal or vertlcallines or til -defined contours
.
Suitable
lor general
photography.
TYpo
R:
Same
as Type A but with rangefindor prisms
of
sloping
surfaces
at a smaller
angle and horizontal and vertical tines to aid proper composition
.
't\brks best with
lenses having maximum apertures from
fl3
.5 to
1/5.6.
Type
T:
Matte/Fresnel
field
with
split-image rangefinoor, 12mmq, reference circle
,
and horizontal and vertical lines.
Used when preparing
slides for
TV
broadcasts,
Dotted
lines indicate standard
TV
screen
format.
SOlid oulline
shows "sale
action"
area,
whereas broken nnes indicate
"safe
title"
area.
Type
U:
Mane /Fresnel
field with 3mm¢ fine-ground matte focusing spot and
12mm¢ reference
circle.
Utilizes the same matte field as Type S, but with lenses
longer
than 100mm the image in the viewfinder
Is
easier to
see.
With shorter focal-
length
lenses,
this screen Is not suitable because of light fall-of!
in
the
comer.
55
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