Praktica
VLC Motor
SR899
- GSK
GSK = Geräuscharme Spiegelreflexkamera = low-noise reflex camera |
| Producer data |
| Producer |
Kombinat VEB
Pentacon Dresden |
responsible constructor |
Rolf Noack
development by order of OTS of MfS (Operativ Technischer Sektor des Ministerium
für Staatssicherheit=Operative Technical Sector of Ministry of National
Security) |
| production period |
approximately 1975 |
no of produced cameras |
approx. 6000
number 1000-6xxx |
| Technical properties of the camera |
| shutter type |
by two electromagnets controlled vertical-moving metal-blade focal plane shutter
|
exposure time
(possible settings) |
B, 1/1, 1/2, 1/4, 1/8, 1/15
1/30, 1/60, 1/125, 1/250,1/500, A, MS, stepless automatic speeds between 1 sec
and 1/1000; |
| view finder |
fixed eye-level view finder (Pentaprism)
with Fresnel lens and microprism range finder as focusing screen |
mirror |
fixed semipermeable
foil-mirror |
| film transport / frame counter |
 | Pentacon Loading-System |
| fixed electric film winder system with electric motor (Dunker Co.)
with one release magnet and camera control electronic |
| camera controlled by special control-unit which allows distant
shutter release with single or serial shots (duration 30 or 60s) with
sequences between 3 and 10s stepless |
| the control unit have three timers, one for shutter speed, one for
duration of serial shots, one for the distance |
| frame counter at the front of the camera |
|
lens mount |
M42x1 |
| self timer |
none |
battery |
external 9V-DC-voltage |
| metering system |
TTL-metering
(25 to 1600 ASA) |
flash system |
X-synchronisation (1/125) |
| flash indication |
none |
aperture reflection into view finder |
none |
| general comments |
| camera with data back no. 3293 and 17m-cassette, control unit and
AC-DC-adapter R203 for use with 220V~(9V- secundary voltage) |
| all cameras with additional control unit have a dot behind the serial
number |
| camera works without control unit using a 9V-DC-voltage |
| available data-back with integrated flash unit with different data
sources |
| available 17m-cassette modified from Praktina |
| available grey tone indicator (G1-device, declaimer number 14571)
will be connected with the special ocular and release camera shot if
brightness has changed in a central field which were checked using
photo-diode |
| available also a TV-camera connectable with the camera ocular (only
some pieces, no existent variety present in collections) |
| special lenses were used with camera, particularly the following:
 | SO-3.1 (2.8/35mm) (SO=Sonderoptik=special optic) |
| SO-3.2 (2.8/50mm) |
| SO-3.3 (3.5/75mm) |
| SO-3.4 (3.5/135mm) |
| SO-2.2B (2.8/180mm Autofocus) |
|
| two versions without fixed foil-mirror
| with SO-2.2B |
| with half-format, with bayonet mount for Dokumar-lenses |
|
| see under Vreisleben D, Die Geräuscharme Spiegelreflexkamera (GSK),
PhotoDeal 33(2): 28-29, 2001 |
|
| collection data |
| Hummel-No |
185 |
Kadlubek-No. |
KWE 2140 |
| body no. |
5294 (without additional dot=but
with control unit) |
lens no. |
9607786 |
| lens type |
Pancolar 1,8/50 Carl Zeiss
Jena DDR |
purchase price |
411€ |
| advertising |
none
|
manual |
|
|
