Difference between revisions of "Visoflex"

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(Rearranged the text, noted (whatever the WP article says) that Visoflex I and II were made for both screw and bayonet cameras.)
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|image_text= Leitz Visoflex (right) matched with 90mm Elmarit,<br>compared to collapsible Elmar 90mm in standard M mount
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|image_text= Leitz Visoflex II with 90mm Elmarit (right),<br/>compared to collapsible Elmar 90mm in standard M mount
 
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|image_text= Side view of Visoflex III, here<br>adapted to Olympus Digital Pen E-P2
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|image_text= Side view of Visoflex III, here<br/>adapted to Olympus Digital Pen E-P2
 
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The '''Visoflex''' is a [[reflex housing]] made by [[Leitz]] to add ground-glass focusing to [[rangefinder camera]]s. Preceded by the earlier [[PLOOT]], the '''Visoflex I''' was introduced in 1951, followed by the '''Visoflex II''' in 1960, and a '''Visoflex III''' in 1964<REF>According to the [http://en.wikipedia.org/wiki/Main_Page Wikipedia] article [http://en.wikipedia.org/wiki/Leica_Camera#Single-lens_reflex_cameras "Leica Camera"].</REF>.
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The '''Visoflex''' is a [[reflex housing]] made by [[Leitz]] in the 1950s and 60s, to add ground-glass focusing to [[rangefinder camera]]s. It is an update of the 1930s [[PLOOT]] reflex housing. The reflex housings add greatly to the distance between the lens mount and the film plane, so the housings are only suitable for long-focus lenses, or for very close focus. A special range of lenses was made for use with the housings, with short lens-tubes.
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The '''Visoflex I''' was introduced in 1951, originally for screw-mount Leica cameras, but it was also made for the new bayonet-mount M-series cameras after the [[Leica M3]] was introduced in 1954. It requires a double [[cable release]]; one cable to release the shutter and a second to activate the mirror-moving mechanism.
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The '''Visoflex II''' followed in 1960; this was also made for both screw- and bayonet-mount cameras. It has a rigid arm which passes the action of the cable release, attached to the housing, to the [[shutter release]] on the camera body.
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The '''Visoflex III''' was introduced in 1964, and was only made for M-series cameras.<REF>According to the [http://en.wikipedia.org/wiki/Main_Page Wikipedia] article [http://en.wikipedia.org/wiki/Leica_Camera#Single-lens_reflex_cameras "Leica Camera"].</REF> This model has an [[instant-return mirror]].
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The Visoflex I required double [[cable release]]s (one for the camera and a second for the mirror box); but the Visoflex II and III used an external arm which lowered directly onto the [[shutter release]] atop the camera body. The Visoflex III introduced an [[instant-return mirror]].
 
  
 
==Notes==
 
==Notes==
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==Links==
 
==Links==
* Visoflex generations & lenses [http://elshaw.tripod.com/Visoflex/Visoflex.html Pt. 1] and [http://elshaw.tripod.com/Visoflex/VisoflexII.html Pt.2] by [http://elshaw.tripod.com/ Gary Elshaw]
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* [http://www.westlicht-auction.com/index.php?f=popup&id=114113&_ssl=off#114113 Auction lot of Visoflex housings and accessories] including Visoflex I for both screw and bayonet mount, sold at the [http://www.westlicht-auction.com/index.php?id=112147&acat=112147&offset=2&lang=3 June 2008 Westlicht Photographica Auction].
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* [http://www.westlicht-auction.com/index.php?f=popup&id=114121&_ssl=off#114121 Visoflex II for screw-mount camera], also sold at the June 2008 Westlicht auction.

Revision as of 21:41, 11 January 2013

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The Visoflex is a reflex housing made by Leitz in the 1950s and 60s, to add ground-glass focusing to rangefinder cameras. It is an update of the 1930s PLOOT reflex housing. The reflex housings add greatly to the distance between the lens mount and the film plane, so the housings are only suitable for long-focus lenses, or for very close focus. A special range of lenses was made for use with the housings, with short lens-tubes.

The Visoflex I was introduced in 1951, originally for screw-mount Leica cameras, but it was also made for the new bayonet-mount M-series cameras after the Leica M3 was introduced in 1954. It requires a double cable release; one cable to release the shutter and a second to activate the mirror-moving mechanism.

The Visoflex II followed in 1960; this was also made for both screw- and bayonet-mount cameras. It has a rigid arm which passes the action of the cable release, attached to the housing, to the shutter release on the camera body.

The Visoflex III was introduced in 1964, and was only made for M-series cameras.[1] This model has an instant-return mirror.


Notes

  1. According to the Wikipedia article "Leica Camera".

Links