Difference between revisions of "Prontor"
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Disambiguation: | Disambiguation: | ||
*1. '''[[Prontor (company)|Prontor]]''' is the new name of the shutter maker [[Gauthier]]. | *1. '''[[Prontor (company)|Prontor]]''' is the new name of the shutter maker [[Gauthier]]. | ||
*2. '''Prontor''' is a [[leaf shutter]] with a great range of speeds, introduced in 1935 by [[Gauthier]]. | *2. '''Prontor''' is a [[leaf shutter]] with a great range of speeds, introduced in 1935 by [[Gauthier]]. | ||
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{{Flickr image | {{Flickr image | ||
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The '''Prontor Professional''' is a [[large format]] shutter with speeds from 1 to 1/125 sec. plus B. It has an additional cable release thread for an aperture release, a lever to switch from stepless to stepwise aperture setting, and facilities to connect its aperture levers to a mechanical aperture remote control on the camera back. | The '''Prontor Professional''' is a [[large format]] shutter with speeds from 1 to 1/125 sec. plus B. It has an additional cable release thread for an aperture release, a lever to switch from stepless to stepwise aperture setting, and facilities to connect its aperture levers to a mechanical aperture remote control on the camera back. | ||
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| + | == Photos of internal mechanisms == | ||
| + | {{Flickr_image | ||
| + | |image_source= http://www.flickr.com/photos/29504544@N08/5672380312/in/pool-camerawiki | ||
| + | |image= http://farm6.static.flickr.com/5061/5672380312_9edf942f13_m.jpg | ||
| + | |image_align= left | ||
| + | |image_text= Prontor-S | ||
| + | |image_by= Hans Kerensky | ||
| + | |image_rights= with permission | ||
| + | }} | ||
| + | {{Flickr_image | ||
| + | |image_source= http://www.flickr.com/photos/29504544@N08/5674641227/in/pool-camerawiki | ||
| + | |image= http://farm6.static.flickr.com/5147/5674641227_7119cae041_m.jpg | ||
| + | |image_align= middle | ||
| + | |image_text= Prontor-S mechanics, side views | ||
| + | |image_by= Hans Kerensky | ||
| + | |image_rights= with permission | ||
| + | }} | ||
| + | {{br}} | ||
== Bibliography == | == Bibliography == | ||
Revision as of 18:59, 3 May 2011
Disambiguation:
- 1. Prontor is the new name of the shutter maker Gauthier.
- 2. Prontor is a leaf shutter with a great range of speeds, introduced in 1935 by Gauthier.
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| Prontor II on Japanese camera image by eBayer hbpartner (Image rights) |
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 flash synchronized.
The Prontor-SV has dual M/X synchronization and exists with 1, 2, 5, 10, 25, 50, 100, 250, B speed range (alternatively 1/300 instead of 1/250).
The Prontor-SVS has a common mechanism for the M/X synchronization and the self-timer (usage: first select the wanted speed, then cock the shutter and then optionally engage the self-timer by moving the V/X/M lever to V). Exists with 1/300 and 1/500 top speeds.
The Prontor 125 is an everset shutter, named after its maximum speed 1/125 sec. .
The Prontor 300 is also named after its max. speed, but needs cocking.
The Prontor 250 LK, Prontor 300 LK, Prontor 500 LK and Prontor 1000 LK are meter-coupled Prontors.
The Prontor-SLK is a fast flash synchronized meter-coupled shutter.
The Prontor-Mat-S was a shutter for early cameras with automatic exposure setting control.
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| Prontor-Press with JML lens image by Uwe Kulick (Image rights) |
The Prontor-Press is a so-called "press shutter". That means that it is an everset flash synchronized large format leaf shutter. It has five shutter leaves and an additional five-leaf aperture iris. Its speed range is 1 sec. to 1/125 sec. and includes T and B modes. Speeds can easily be set stepwise by means of the speed setting ring around its front. It has a screw mount in either the front and the back since it's a shutter for lens kits with separate barrels for front and rear elements. The shutter's release lever can alternately be operated with a common remote cable.
The Prontor Press Electronic is an electronically controlled shutter, the Prontor magnetic another electrically-driven one.
The Prontor Professional is a large format shutter with speeds from 1 to 1/125 sec. plus B. It has an additional cable release thread for an aperture release, a lever to switch from stepless to stepwise aperture setting, and facilities to connect its aperture levers to a mechanical aperture remote control on the camera back.
Photos of internal mechanisms
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| Prontor-S image by Hans Kerensky (Image rights) |
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| Prontor-S mechanics, side views image by Hans Kerensky (Image rights) |
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)
Links
- Repair notes for the Klio, Prontor-S and Prontor II, Prontor SVS at Daniel Mitchell's camera site
- disassembly of Prontor-S at APUG [1]
- Prontor-S servicing at Roland and Caroline's website
- Prontor Professional shutters at S.K. Grimes
