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| Praktica PL nova I-modelsProduction period: April 1967 to January 1976 Number of Models: 12, including 1 prototype Number of produced items: 837,050 responsible constructor: Herbert Welzel
The success of the Praktica nova-models was the cause of the further development of this series with improved features. The conspicuous changes were the new developed stationary shutter speed knob and the new advanced Pentacon quick-load (PL)-system. At the Leipzig Spring Fair 1967 it was the first night of the new camera Praktica PL nova I. Contemporary, the camera with integrated not through the lens exposure meter, the Praktica PL nova IB, which uses selenium light-sensitive cell instead of the cadmium sulphide (CdS) was introduced. The demand to this cameras was extensive. On this basis some changes and special models were produced. Additionally to the following variations some other types, for example for the market in the Netherlands were produced. During March 1968 a new interesting camera were, the Praktica PL electronic were presented. The Praktica PL electronic was the first SLR with an electronically adjustable shutter speed. Using a electronic circuit with different resistors were used for the adjustment of the shutter speed. The shutter speed was realised using a rubberised focal-plane shutter using switching magnets. The time-line was geometrically with a range between 30s and 1/500s in 14 steps. Without battery a mechanically realised shutter speed of 1/60s realises the further work. The expensive wattache and the expensive tuning of the assembly force the end of production in 1969. The Praktica super TL were introduced at the Leipzig Spring Fair in 1968 as a further model using TTL-stopped-down metering which replace the Praktica mat on the market. The camera was a perfect construction. More than 500,000 cameras of this type were produced. From these camera-type multiple cameras were produced for many other companies.
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