06-05-2006, 02:05
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חבר מתאריך: 16.10.05
הודעות: 5,602
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Mamiya/Sekor DTL Series
The Mamiya 500- and 1000-DTL series cameras were introduced in July 1968. Along with the TL series, these Mamiya/Sekor cameras were the popular backbone of the Mamiya line in the mid-to-late 60s. They were sturdily built, with excellent optics. The lenses were virtually identical to those on the TL-series. They still used the universal "Pentax type" 42mm screw-on mount, although later DTL lenses are identified by the black lens ring which replaced the earlier chrome version. Either lens ring can be found on each series of these cameras today.
The major difference in the newer DTL series was the addition of dual metering patterns, where both spot meter (10 percent of the field) and average readings were possible. The DTL's are also capable of measuring over a wider ASA range (25-3200), and the 1000-series again provided a self-timer that was not included on the 500 DTL.
The Mamiya 500- and 1000-DTL were the only cameras of their day to offer these dual metering patterns! This metering feature, which would eventually become an important marketing feature for all cameras, did not become generally available on SLR's from other manufacturers for several years after the introduction of the Mamiya 500- and 1000-DTL!
An "A" and "S" switch, near the lens mount on the DTL camera body, is used to choose between the average- and spot-meter utility. The light meter itself is activated by pulling the film advance lever slightly away from the camera body. Readings are taken by pushing the lever back toward the body, and reading the result through the viewfinder. The meter is designed to be entirely deactivated by depressing the round button on top of the film advance lever.
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