Zooming c, Depth-of-field scale, Infrared photography e – Nikon AI-S Zoom-NIKKOR 80-200mm f-4 User Manual
Page 11: Features/specifications, Depth-of-field scale d
Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".
ZOOMING------------------------------------------------------------------------C
To
zoom
in
or
out,
look
through
the
viewfinder
and
slide
the
focusing
ring
back
and
forth
until
the
desired
composition
is
framed
on
the
focusing
screen.
As
the
ring
is
pushed
forward
for
shorter
focal
lengths,
a
five-
position
scale
is
uncovered
on
the
lens
barrel
to
show
which
focal
length
the
lens
is
set
for.
To
preset
the
lens
for
a
specific
focal
length,
align
the
edge of the focusing ring with the top edge of the digits.
DEPTH-OF-FIELD SCALE
D
A
group
of
colored
lines,
curving
out
toward
the
front
of
the
lens,
are
engraved
on
the
lens
barrel.
To
find
the
depth
of
field
at
a
particular
focal
length
and
aperture,
first
compose
and
focus
the
lens
on
the
subject.
Then
check
the
numbers
on
the
distance
scale
opposite
the
colored
lines
to
find
the
depth
of
field
at
that
aperture.
The
colors
of
the
pairs
of
lines
correspond
to
different
lens
apertures.
The
continuous
curved
lines
of
the
depth-of-field
scale
give
the
reading
at
any
focal
length.
You
can
also
observe
the
depth
of
field
through
the
viewfinder
by
pressing
the
depth-of-field preview button on the camera.
INFRARED PHOTOGRAPHY----------------------------------------------E
In
infrared
photography,
the
plane
of
sharpest
focus
is
slightly
more
distant
than
the
one
produced
by
visible
light.
As
a
rule
of
thumb,
you
can
compen
sate
for
shift
in
focus
by
referring
to
the
curved
red
infrared
line
engraved
between the depth-of-field index lines on the lens barrel.
After
sharply
focusing
the
subject
through
the
viewfinder,
check
the
focused
distance
and
turn
the
focusing
ring
to
the
left
until
the
prefocused
distance
figure
is
aligned
with
the
infrared
compensation
line.
Then
attach
the
filter
to the lens and take the picture.
FEATURES/SPECIFICATIONS
Focal length; 80mm ~ 200mm
Maximum aperture; f/4
Lens construction: 13 elements In 9
groups
Picture angle: 30°10' ~ 12°20’
Distance scale; Graduated in meters and
feet from 1.2m (4 ft) to infinity (~)
Focusing/Zooming control: Via a singie
control ring; reference marks for
focal length settings of 80mm, 90mm,
105mm, 135mm and 200mm are
provided
Aperture scale: f/4 ~ f/32 on both
standard and aperture-direct-readout
scales
Diaphragm: Fully automatic
Exposure measurement: Via full-aperture
method; meter coupling ridge pro
vided for Al cameras and meter
coupling shoe for non-AI cameras
Attachment size; 62mm (P=0.75mm)
Filters: 62mm screw-in
Mount: Nikon bayonet mount
Dimensions: Approx. 73mm0 x 154mm
extension from flange; approx. 162mm
long (total)
Weight: Approx. 81 Og
1 0