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38
Focusing
Screen
Selector
Guide
D
Type A:
M~Ue/Fresnel
field with
3mm;
circular
split-Iml.lge
rangefinder
spot
and
12mm~
c
ircle.
Rapid
and
o!Iccurote focusing. Excellent for
general
photogrophy.
Type B: Matte/Fresnel field with
12mm;
line-ground matte focusing spot
In
the
center.
Good for
general
photography, especltlUy with l
ong
-lenses.
Type
C: Fine
-groun
d matte field with
4mm;
clear
spot
o!Ind
cross hair.
For photomicrography, ostrophotogrophy
an
d other high-magnifi-
cation applications. using
~rollax
focusing on aerial images.
Type
D:
Overilll line-ground malte Ileid. For specialized close-up
photography
and
for use with long lenses.
Type
E:
MatteI Fresnel field with
12mm;
fine-ground matte
spot
and
etched
horizontal
and
vertical lines. Ideal
for
architectural photog-
rllphy.
Type
G:
Cle"r
Fresnel field with
ext
ro!l
-bright l2mm; mlcroprism focus-
ing spot for viewi
ng
lind focusing in
poor
light. Four models
(GJ-G4)
o!Ire
o!IvlIllllble
corresponding
to specific focal length lenses. Depth of
field cllnnot
be
obse
rved.
Type H:
Cle"r
Fresnel field with microprism focusing
Po!J,ttern
over
the
entire
screen
lire". Permits
ro!lpid
focusing
on
lIny
Po!J,rt
of
the
screen
with
optimum
edge
-
io-edge
brightness
in
poor
light. AVllilllble in four
models
(HI-H4)
corresponding
to
Po!J,rticulllr
focal length lenses.
Type
J:
MlIUe
/Fresnel field with
centro!ll
microprlsm focusing spot
and
12mmjll
Circle. Good for generlll
photognphy
.
Type K: Comblno!ltion
01
Type A
and
1 screens. Mall
e/
Fresnel field with
3mm
pf
spiit-imllge
rangelinder
spot
surrounded
by I mm-wide micro-
prism
doughnut.
Ro!Ipld
&1d
accurate
focusing lor subjects with both
slralght lines
o!Ind
ill-defined contours. Su
il
o!lble
for
general
photog-
raphy.
Type
L:
Same
as
Type A screen bul with split-imllge rangelinder line at
lI45° &1gle.
Best
for
subjects
with
horizontal lines.
Type
M:
Fine-ground Fresnel field with
5.5mm;
clear
spot
and
double
cross
hair
for use
In
po!Irallllx
focusing
on
o!Ierlal
image, plus millimeter
scales for calculation of IndiVidual mllgnification of objects
or
for
measuring
objects.
Brilllo!lnt
imo!lge
in dim light. Suitable f
or
close-ups,
photomicrography
and
other
high-magnification o!Ipplications.
Type P: SlIme
as
Type K
but
with split-Image ro!lngefinder line
o!It
o!I
45
0
lingle
and
etched
horizontal
and
vertical lines
o!IS
an
aid
to composition.
Rapid
and
accurate
focusing for subject with horizontal
or
vertical lines
or
ill-defined contours.
Suito!lble
for
genero!li
photography.
Type R:
Same
liS
Type A
but
with
rangeflnder
prisms
01
sloping surfaces
at a smllUer
angle
and
horizontaillnd
vertical lines 10
aid
proper
com-
position. Works best with lenses having maximum o!Ipertures from
113
.5
to 1/5.6.
Type
T: Matte/Fresnel field with split-Image rangeflnder,
l2mm~
re
-
ference circle,
and
horizontal
and
vertlclillines. Used when
preparing
slides
for
TV
broadcasts. Dotted lines indicate stando!lrd
TV
screen
format. Solid outline shows
"So!Ife
action"
area,
whereas
broken
lines
indicate
nSo!l
fe
title"
area.