Zorki-4K Brief Description
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Zorki-4K
Brief Description.
1. Purpose
ZORKI-4K is a single-lens rangefinder camera intended for taking various amateur and professional
pictures on black-and-white film.
The camera is provided with a shutter setting lever and a self-timer and is “M” and “X”
synchronized.
The viewfinder and the rangefinder of the camera have a common field of view and the camera
eyepiece is provided with a device for adjusting it according to a particular eyesight. Such a design of
the viewfinder ensures perfect focusing at the moment of picture taking.
The lens is focused by turning its focusing ring. In so doing the rangefinder operates automatically
irrespective of the focal length of an interchangeable lens.
The camera uses a new type of a take-up spool to simplify the camera loading.
The camera accepts standard cassettes with invariable slit.
The camera is delivered in two variants: with INDUSTAR-50 or JUPITER-8 lens.
2. Specifications
Frame size, mm . . . . . . . . . . . . . . . . . . . . . . . . . . . 24×36
Perforated film width, mm . . . . . . . . . . . . . . . . . . 35
Number of frames for one loading . . . . . . . . . . . . 36
Focal plane shutter speeds . . . . . . . . . . . . . . . . . . . 1 to 1/1000 s (automatic), “B” (by band)
and slow shutter speed
Mechanical back focal distance, mm . . . . . . . . . . 28.3
Viewfinder eyepiece magnification, times . . . . . . 1.15
Eyepiece adjustment, diopters . . . . . . . . . . . . . . . . ±2.5
Thread of shutter button for cable release . . . . . . . КФ 3.5×0.5
Tripod bush threa, inch . . . . . . . . . . . . . . . . . . . . . ¼
Lens
INDUSTAR-50
JUPITER-8
Nominal focal length, mm
50
50
Relative aperture range
f/35 to f/16
f/2 to f/22
Focusing range, m
1 to “∞”
1 to “∞”
Field of view, grades
45
45
Lens seaing thread
М39×1
М39×1
Lens mount thread for light filters
СпМ 35.5×0.5
СпМ 40.5×0.5
Seat for sun shade, mm
Ø37
Ø42
Overall dimensions of camera
without case, mm
143×88×94
Mass of camera without case, kg
0.6
0.7
