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Praktica BCA (Roman)
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Praktica BCA Roman numerals for auto exposure correction
Producer data
Producer VEB Pentacon Dresden Betrieb des Kombinates VEB Carl Zeiss Jena responsible constructor Werner Hahn, Rolf Noack
production period August 1986 to December 1989 no of produced cameras 231,806
Technical properties of the camera
shutter type steplessly working electronically controlled vertical-run metal-blade focal plane shutter exposure time
(possible settings)
B, steplessly automatic speeds between 1 sec and 1/1000 sec;  mechanical range 1/60 sec
view finder fixed eye-level view finder (Pentaprism, field of view: 95%) with field lens with triple rangefinder wedge, truncated microprism screen, groundglass field, LEDs- for shutter speed signaling changes their brightness with brightness of the image
bulletred LED for over-exposition
bulletgreen LED for 1/1000 to 1/60
bulletyellow LED for 1/30 to 1 sec
bulletred LED for under-exposition
bulletgreen LED - flash ready signal
mirror instant-return mirror
film transport / frame counter single stroke 125° wind-on quick-release lever with 25° stand off position, accepts B-motor winder, folding crank rewind knob, auto-zeroing frame counter lens mount Praktica-B-mount with EDC (electronic diaphragm control)
self timer mechanically, approx. 8 sec delay battery VARTA V28 PX (4xLR44)
metering system TTL-metering (12 to 3200 ASA) using electronic diaphragm control (EDC) for measurement with open aperture using a Cadmium sulphide  photo-resistor, auto exposure compensation with +/- two shutter speeds in half steps, automatic exposure system with memory key, battery check facilities flash system X-synchronisation (1/60), accessory shoe at the top of the pentaprism
flash indication yes aperture reflection into view finder yes
general comments version with Roman numerals for auto exposure correction
collection data
Hummel-No 228 Kadlubek-No. KWE 1380
body no. 484039 lens no. 4645098
lens type Pentacon Prakticar 1:1.8 f=50mm MC purchase price 100€



under construction





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Stand: 10. April 2010