Pentax ME-F ME-F Manual - Page 68

speed/film

Get Pentax ME-F PDF manuals and user guides View all Pentax ME-F manuals
Add to My Manuals
Save this manual to your list of manuals

Page 68 highlights

METER COUPLING RANGE The meter coupling range of yoru ME-F assures accurate exposure reading over a broad range of shutter speed/film speed combinations. The working EV range of for both auto and manual exposure systms also varies with the lens in use and is reflected in the chart to the right. With the SMC Pentax AF zoom with ASA 100 film it extends from EV-1 (f/2.8 at 4 seconds) to EV 19 (f/16 at 1/2000th second; f/22 at 1/1000th second); with the f/1.4 50mm standard lens it runs from EV-1 (f/1.4 at 1 second) to EV-19 (f/16 at 1/2000th second; f/22 at 1/1000th second). You can calculate what the working EV range would be at other film speeds by mentally adjusting the accurate exposure coupling range. Simply move the ASA arrow at the right of the chart up or down and adjust the chart accordingly. At ASA 50 with the 50mm f/1.4 lens, for example, it would run from EV-0 (f/1.4 at 2 seconds; f/2 at 4 seconds) to EV-18 (f/22 at 1/500th second; f/16 at 1/1000th second). • 64

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
METER
COUPLING
RANGE
The
meter
coupling
range
of
yoru
ME
-F
assures
accurate
exposure
reading
over
a
broad
range
of
shutter
speed/film
speed
combinations.
The
working
EV
range
of
for
both
auto
and
manual
exposure
systms
also
varies
with
the
lens
in
use
and
is
reflected
in
the
chart
to
the
right.
With
the
SMC
Pentax
AF
zoom
with
ASA
100
film
it
extends
from
EV-1
(f/2.8
at
4
seconds)
to
EV
19
(f/16
at
1/2000th
second;
f/22
at
1/1000th
second);
with
the
f/1.4
50mm
standard
lens
it
runs
from
EV-1
(f/1.4
at
1
second)
to
EV-19
(f/16
at
1/2000th
second;
f/22
at
1/1000th
second).
You
can
calculate
what
the
working
EV
range
would
be
at
other
film
speeds
by
mentally
adjusting
the
accurate
exposure
coupling
range.
Simply
move
the
ASA
arrow
at
the
right
of
the
chart
up
or
down
and
adjust
the
chart
accordingly.
At
ASA
50
with
the
50mm
f/1
.4
lens,
for
example,
it
would
run
from
EV-0
(f/1.4
at
2
seconds;
f/2
at
4
seconds)
to
EV-18
(f/22
at
1/500th
second;
f/16
at
1/1000th
second).
•
64