Prontor

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The Prontor is a long-lived series of leaf shutters made by the German company Gauthier based in Calmbach.

The Prontor II exists with the following speed ranges:

  • T, B, 175, 100, 50, 25, 10, 5, 2, 1, not synchronized
  • 200, 100, 50, 25, 10, 5, 2, 1, B, T, synchronized

The Prontor-S is synchronized.

The Prontor-SV has dual M/X synchronization and exists with 1, 2, 5, 10, 25, 50, 100, 250, B speed range.

The Prontor-SVS has a common mechanism for the M/X synchronization and the self-timer.

Bibliography

  • Kamera no mekanizumu sono I: "Hai! Chīzu" Shunkan o torae-tsuzukeru shattā-ten (カメラのメカニズム・そのⅠ・「ハイ!チーズ」瞬間をとらえ続けるシャッター展, Camera mechanism, part 1 "Cheese!" Exhibition of instant taking shutters). Tokyo: JCII Camera Museum, 2002. (Exhibition catalogue, no ISBN number)

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