Kalinka Optics Zenit-122 User Manual page 10

against light as well as improves color rendition.
If an interchangeable lens has no automatic diaphragm, the diaphragm can be
handled manually. If a picture is taken with a long-focus lens, the left-hand and
right-hand edges of the frame will be slightly cut off.
With the help of a special stand the camera can be
used for making copies of drawings, manuscripts,
photographs. To do this use should be made of
extension tubes by setting them between the
camera body and the lens. To obtain the
magnification you want either one tube or a
combination of some tubes can be used.
Extension tubes provided with a control pin should
be used with lenses where no diaphragm manual
mode switch is provided ("HELIOS-44M-4" for
example).
Extension tubes without control pins should be used
with the lenses in which the aperture is set manually
(the diaphragm mode selector switch should be set
to "M".
Interchangeable Lenses
focal length in
Lens name
Mir-20M
MC Mir-20M
Mir-10A
MC Mir-24M
MC Industar-61
Helios-40-2
Jupiter-9
MC Jupiter-9
Tair-11A
Jupiter-37A
MC Jupiter-37A
MC Granit -11M 80--200
Jupiter-21M
3M-6A
(right: ZM -6A)
MC MTO-11
CA
relative
mm aperture
20 f/3.5
28 f/3
35 f/2
50 f/2.8
85 f/1.5
85 f/2
135 f/2.8
135 1/3.5
f/4.5
200 f/4
500 f/6.3
1000 f/10
angle of field of minimum focusing distance in
view
96°
75°
66°
45°
28°
28°
18°
l8°
30°--12°
12°
5°
2°30'
m
0.18
0.20
0.30
0.30
0.80
0.80
1.20
1.20
1.50
1.80
6.0
8.0