Yashica MAT-LM - Model-Specific Guides

EXPOSURE
Exposure means finding the right combination 01 lens-opening laperturel and shutter speed
in relation to the sensitivity IASAI 01 your film. IASA indicates American Standard Associa-
tianl. For example, il you are using a "1m 01 ASA 2000 ITRI-X typel sensitivity your correct
exposure will be according to the lollowing table:
DA YLiGHT EXPOSURE TABLE
You shutter speed
will be 1/100 with the aperture number shown below.
I
Cloudy-Dull or
Bright Sun Hazy Sun Cloudy-Bright
Open Shadel41
L ight Subiects III
f/32 1/22 1/ 16 1/11
Average Subiects 121
1/22
f/16
f/ll
f/8
Dark Subjects 131
1/16 1/l1
1/5 1/5.6
III Light Subiects: Dista n t 10 ndsca pes, near-by
people with
sea,
beach and snow
scenes in t he background.
121 Average Subjects:
Near-by people, houses,
gardens, buildings
and
place's
not in t he shade.
Advisable to use this class when light and dark objects are
in about equal
proportions.
131
Dark Subiects:
People in dark clothing;
trees, fiowers, animals and large
buildings.
141
Open Shade:
Subjects shaded Irom the sun but
lighted
by
a wide area 01
open sky.
The
less the open sky the larger the
lens opening.
If you are using an ASA 100 film, you will make a larger lens-opening Or lower your
shutter speed
to 1/60.
But if you never want to make a mistake, us~ an exposure meter . Be sure to consult your
local camera dealer.