PRAKTICA BX 20

Technical features:

• SRL camera for a frame size of 24mm x 36mm, open-aperture TTL metering system with electronic aperture setting transfer
• Automatic electronic shutter speed control (stepless) in the range from 1/1000 s to 40 s
• Change-over from automatic to semi-automatic mode possible; fixed speed range from 1/1000 s to 1 s
• Electronic TTL metering system for flashes and correct dosage of light for dedicated computerized flash unit, X synchronization (approx. 1/100s)
• Flash readiness indication (and "flash O.K." signal) in viewfinder image
• LED information on expected shutter speed in viewfinder
• Indication of overexposure or underexposure
• Aperture setting displayed at bottom of viewfinder image
• Shutter cocked information
• Manual exposure compensation of ± 2 exposure factors, indication of compensation by red LED
• Mocking of metered value and indication there by green LED at AEL ~ (automatic exposure lock)
• Self-timer (approx. 10 s) with starting button serves also as stop-down lever for depth-of-field checking
• Focusing system comprises Fresnel lens with innovative diagonal triple wedge, microprism ring and ground glass ring
• Viewfinder image shows approx. 95 per cent of picture sides
• PRAKTICA bayonet (flange focal length 44.4mm internal diameter 48.5 mm)
• Connection for motor winder
• Film information holder on camera back
• Indication of battery condition in viewfinder
• Power source: 6V primary battery (e. g. PX281Mallory)
• Silicon photo element as light sensor
• Metering and control range: 0-17 EV at 100ASA and aperture 1.4
• Dimensions of body: 141mm x 88mm x 49mm
• Weight of body without battery: 510 g