Kodak Retina Reflex - Shutter Speeds to Arrest Movement with the Retina

3 ft. 91.4 cm. 40 cm. 15 3/4 in.
4 ft. 1.22 m. 50 cm. 19 3/4 in.
5 ft. 1.52 m. 60 cm. 23 5/8 in.
6 ft. 1.83 m. 80 cm. 31 1/2 in.
7 ft. 2.13 m. 100 cm. 39 1/2 in.
8 ft. 2.44 m. 1.5 m. 4 ft. 11 in.
9 ft. 2.74 m. 2 m. 6 ft. 7 in.
10 ft. 3.05 m. 2.5 m. 8 ft. 3 in.
15 ft. 4.57 m. 3 m. 9 ft. 10 in.
20 ft. 6.10 m. 4 m. 13 ft. 2 in.
30 ft. 9.14 m. 5 m. 16 ft. 5 in.
40 ft. 12.20 m. 10 m. 33 ft. 0 in.
50 ft. 15.24 m. 15 m. 49 ft. 2 in.
100 ft. 30.48 m. 20 m. 66 ft. 0 in.
SHUTTER SPEEDS TO ARREST MOVEMENT WITH THE RETINA
Distance between Camera and Object
Subject
10 ft.
3m.
20 ft.
6m.
40 ft.
12 m.
80 ft.
25 m.
160 ft.
50 m.
Swimmer 1/60 1/30 1/15 1/8 1/4
Walker 1/125 1/60 1/30 1/15 1/8
Runner 1/500 1/250 1/125 1/60 1/30
Cyclist 1/500 1/250 1/125 1/60 1/30
Skater -- 1/500 1/250 1/125 1/60
Horse galloping 1/500 1/250 1/125 1/60 1/30
Horse trotting 1/250 1/125 1/60 1/30 1/15
Horse walking 1/125 1/60 1/30 1/15 1/8
Racehorse -- 1/500 1/250 1/125 1/60
Waves 1/500 1/250 1/125 1/60 1/30
Heavy waves -- 1/500 1/250 1/125 1/60
Boats making 10 knots 1/500 1/250 1/125 1/60 1/30
Boats making 20 knots -- 1/500 1/250 1/125 1/60
Tramcar 1/500 1/250 1/125 1/60 1/30
Motor car on road -- 1/500 1/250 1/125 1/60
Slow train 1/500 1/250 1/125 1/60 1/30
Fast train -- -- 1/500 1/250 1/125
Aeroplane -- -- -- 1/500 1/250
The shutter speeds as listed above are applicable to motion which cuts
right across the direction in which the lens and photographer look.
If the motion photographed is at an acute angle with the direction in which
the lens points the exposure time can be longer, say 1/30 second instead of
1/60.
If the subject moves directly towards the lens (or for that matter away
from it) the exposure time can be three or four times longer, say 1/8 second
instead of 1/30.
ZONE FOCUSING
With 50mm. Lens With 35mm. Lens With 80-85mm. Lens
Subject Stop
Distance
Setting
Depth
From --- To
Distance
Setting
Depth
From --- To
Distance
Setting
Depth
From --- To
Portraits 8 4 ft. 3½ - 4½ ft. -- -- 6 ft. 5½ - 6½ ft.
Children 8 6 ft. 5 - 7½ ft. 6 ft. 4½ - 10 ft. 10 ft. 9 - 11¼ ft.
Children 8 *10 ft. 7½ - 15 ft. *10 ft. 6 - 30 ft. *15 ft. 13 - 18 ft.
Groups 8 12 ft. 9 - 20 ft. *10 ft. 6 - 30 ft. -- --
Landscapes 8 30 ft. 15 ft. - inf 15 ft. 7½ ft. - inf 70 ft. 35 ft. - inf