Zenit PhotoSniper User Manual - page 7
Zenit PhotoSniper User manual, 1992 year
– 7 –
against the index mark in the middle of the dial. Figures on the
exposure time dial indicate fractions of a second; “B” indicates hand-
controlled exposure time.
To obtain long exposure tome cock the shutter, set the exposure
time dial at “B”, press the release button and turn it counter-
clockwise as far as it goes. After exposure return the button into
initial position.
Notes:
1. Exposure time may be set both with the shutter cocked
and released.
2. It is good practice to use a tripod when photographing at long exposure time and “B”.
3. When photographing without flash lamps, the synchronization lever may be set in any position.
COMPARATIVE TABLE OF FILM SENSIBILITY UNITS OF ГОСТ, ASA and DIN
ГОСТ
-ASA
16
20 25 32 40 50 65 80 100 130 160 200 250 320 400 500
DIN
13
14 15 16 17 18 19 20 21
22
23
24
25
26
27
28
4.6. Diaphragm Setting
4.6.1. Of the “TAIR-3-PhS” lens
1. Lay your left palm on the lens body and turn the diaphragm knob
with the thumb to the stop in the arrow direction.
2. Turning the diaphragm setting ring, set one of the figures (4.5;
5.6; 8; 11; 16; 22) corresponding to the selected diaphragm against
the index mark. Each of these positions is fixed with a click stop.
4.6.2. Of the “HELIOS-44-2” lens
Set one of the figures (2; 2.8; 4; 5.6; 11, 16) engraved on the
diaphragm setting ring against the index mark (dot). The ring
should be turned up to a click stop.
DEPTH-OF-FIELD TABLE FOR THE “TAIR-3-PhS” LENS
(f = 300 mm)
f/
4.5
5.6
8
11
16
22
D (m)
from – to
from – to
from – to
from – to
from – to
from – to
3
2.99 – 3.01
2.98 – 3.02
2.98 – 3.02
2.97 – 3.03
2.96 – 3.05
2.94 – 3.07
3.5
3.48 – 3.52
3.48 – 3.52
3.47 – 3.54
3.45 – 3.55
3.43 – 3.57
3.41 – 3.60
4
3.97 – 4.03
3.97 – 4.04
3.95 – 4.05
3.93 – 4.07
3.91 – 4.10
3.87 – 4.14
5
4.95 – 5.05
4.94 – 5.06
4.92 – 5.08
4.89 – 5.12
4.84 – 5.17
4.78 – 5.24
6
5.93 – 6.07
5.91 – 6.09
5.88 – 6.13
5.83 – 6.18
5.76 – 6.26
5.68 – 6.37
8
7.87 – 8.14
7.84 – 8.17
7.77 – 8.25
7.69 – 8.34
7.55 – 8.51
7.40 – 8.72
10
9.79 – 10.22
9.74 – 10.28
9.63 – 10.40
9.50 – 10.56
9.29 – 10.85
9.05 – 11.20
15
14.50 – 15.53
14.39 – 15.67
14.14 – 15.98
13.85 – 16.38
13.38 – 17.10
12.86 – 18.05
20
19.11 – 20.98
18.90 – 21.24
18.47 – 21.82
17.96 – 22.59
17.16 – 24.02
16.30 – 25.99
40
36.48 – 44.30
35.71 – 45.49
34.14 – 48.35
32.37 – 52.47
29.81 – 61.18
27.22 – 76.49
80
66.84 – 99.60
64.26 – 105.97 59.29 – 123.19 54.07 – 154.66 47.16 – 269.92
40.92 – ∞
∞
400 – ∞
322 – ∞
225 – ∞
164 – ∞
113 – ∞
82 – ∞
Notes:
1. D – distance in metres – distance from the film plane to the object.
2. In depth of field calculation the circle of confusion was accepted to be equal to 0,05 mm.