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The flash range depends on the film speed and focal length in use. Because of
the optical system, the flash range is not the same at the lens’ wide-angle
position as it is at the telephoto position. To ensure proper exposure, the subject
must be within the flash range.
FLASH RANGE
The distances are based on use with color negative film.
ISO100
Focal length
Film speed
0.6 - 4.6 m
(2.0 - 15.1 ft)
37.5 mm
140 mm
(140 model)
0.8 - 2.1 m
(2.6 - 6.9 ft)
0.95 - 2.0 m
(3.1 - 6.6 ft)
160 mm
(160 model)
ISO400
0.6 - 9.2 m
(2.0 - 30.2 ft)
0.8 - 4.2 m
(2.6 - 13.8 ft)
0.95 - 4.0 m
(3.1 - 13.2 ft)