Difference between revisions of "Konica C35 AF"

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The C35AF is a "milestone" camera in that it was the world's first production autofocus camera. It used the "Visitronic" AF system developed and produced by Honeywell (see below for description). This was a "passive" rather than the subsequently more popular "active" system (annouced two years later by Canon in the AF35M).
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The [[Konica]] C35AF (nicknamed "Jasupin") is a milestone camera in that it was the world's first production autofocus camera. Launched in November 1977, it used the "Visitronic" AF system developed and produced by Honeywell (see below for description). This was a "passive" rather than the subsequently more popular "active" system (used two years later by Canon in the [[Canon_Sure_Shot/AF35M/Autoboy|Sure Shot AF35M]]). Konica is said to have sold one million units.
 
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In 1980, the C35 AF was superseded by the [[Konica C35 AF2|C35 AF2]] with some cosmetic differences.
{{br}}
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== Specifications ==
== Specification ==
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* 35mm Autofocus & Auto exposure [[compact camera]]
 
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* Lens: Hexanon 38mm f/2.8, 4 elements in 3 groups
* 35mm Autofocus & Auto exposure Compact camera
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* Shutter: Programmed Leaf shutter with 3 speeds - 1/60s, 1/125s & 1/250s
* Lens: Hexanon 38mm f2.8 3 group 4 element
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* Exposure: Fully automatic - 25-400ASA
* Shutter: Programmed - 3 speeds 1/60, 1/125 & 1/250
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* Meter: CdS
* Exposure; Fully automatic - 25 - 400ASA
 
* Meter: CDS
 
 
* Sensitivity: EV 9 - EV 17 with 100 asa film
 
* Sensitivity: EV 9 - EV 17 with 100 asa film
 
* Viewfinder: Bright Line 0.41 Magnification
 
* Viewfinder: Bright Line 0.41 Magnification
 
* Indication: Underexposure warning light, Parallax Correction Mark, Focus measuring square
 
* Indication: Underexposure warning light, Parallax Correction Mark, Focus measuring square
 
* Flash: GN14 - Exposure determined by range measured by autofocus
 
* Flash: GN14 - Exposure determined by range measured by autofocus
* Film Winding: Manual - Leverwind + re-wind crank
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* Film Winding: Manual - Lever wind + rewind crank
 
* Features: Lens cap obscures viewfinder to prevent errors!
 
* Features: Lens cap obscures viewfinder to prevent errors!
* Deimensions: Width- 132m Height-76mm Depth-54mm
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* Dimensions: 132x76x54mm
 
* Weight: 375 grams
 
* Weight: 375 grams
* Introduced: 1977
 
  
 
== The Honeywell AF system ==
 
== The Honeywell AF system ==
  
 
"Designed by Honeywell for 35 mm cameras (visible light), uses a separate set of detectors and charge coupled devices along with a microprocessor to effect automatic focus.  
 
"Designed by Honeywell for 35 mm cameras (visible light), uses a separate set of detectors and charge coupled devices along with a microprocessor to effect automatic focus.  
 
 
A correlation is performed between sets of detectors utilizing two different, widely separated small areas of the aperture. The technique is based, as in optical rangefinders, on the angular difference between separate receivers in superimposing the same scene.  
 
A correlation is performed between sets of detectors utilizing two different, widely separated small areas of the aperture. The technique is based, as in optical rangefinders, on the angular difference between separate receivers in superimposing the same scene.  
 
 
This technique effectively determines not only whether the system is out of focus, but the amount and direction of lens movement required to achieve optimum focus."
 
This technique effectively determines not only whether the system is out of focus, but the amount and direction of lens movement required to achieve optimum focus."
  
 
"Electronic Focus for Cameras", by N. Stauffer and D. Wilwerding March, Scientific Honeyweller, Volume 3, No. 1 March 1982
 
"Electronic Focus for Cameras", by N. Stauffer and D. Wilwerding March, Scientific Honeyweller, Volume 3, No. 1 March 1982
 
  
 
== Links ==
 
== Links ==
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* [http://www.collection-appareils.fr/konica/html/konica_C35_AF.php Konica C35 AF], [http://www.collection-appareils.fr/konica/html/konica_c35_AF2.php Konica C35 AF2] on [http://www.collection-appareils.fr/general/html/francais.php www.collection-appareils.fr] by Sylvain Halgand
 
* [http://www.collection-appareils.fr/konica/html/konica_C35_AF.php Konica C35 AF], [http://www.collection-appareils.fr/konica/html/konica_c35_AF2.php Konica C35 AF2] on [http://www.collection-appareils.fr/general/html/francais.php www.collection-appareils.fr] by Sylvain Halgand
 
* JJ's French language page on the [http://konica.awardspace.com/page40/page63/page63.html Konica C35 AF]
 
* JJ's French language page on the [http://konica.awardspace.com/page40/page63/page63.html Konica C35 AF]
 
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* [http://en.wikipedia.org/wiki/Konica_C35_AF C35 AF] on Wikipedia
 
 
in Japanese:
 
* [http://www.ca.konicaminolta.jp/oldnew/konica/1970/1977.html Konica Minolta]
 
  
 
[[Category: Japanese 35mm autofocus]]
 
[[Category: Japanese 35mm autofocus]]
 
[[Category: Konica|C35 AF]]
 
[[Category: Konica|C35 AF]]
 
[[Category: K]]
 
[[Category: K]]
[[Category: C|C35 Af]]
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[[Category: C|C35 AF]]

Revision as of 21:57, 18 July 2009

The Konica C35AF (nicknamed "Jasupin") is a milestone camera in that it was the world's first production autofocus camera. Launched in November 1977, it used the "Visitronic" AF system developed and produced by Honeywell (see below for description). This was a "passive" rather than the subsequently more popular "active" system (used two years later by Canon in the Sure Shot AF35M). Konica is said to have sold one million units. In 1980, the C35 AF was superseded by the C35 AF2 with some cosmetic differences.

Specifications

  • 35mm Autofocus & Auto exposure compact camera
  • Lens: Hexanon 38mm f/2.8, 4 elements in 3 groups
  • Shutter: Programmed Leaf shutter with 3 speeds - 1/60s, 1/125s & 1/250s
  • Exposure: Fully automatic - 25-400ASA
  • Meter: CdS
  • Sensitivity: EV 9 - EV 17 with 100 asa film
  • Viewfinder: Bright Line 0.41 Magnification
  • Indication: Underexposure warning light, Parallax Correction Mark, Focus measuring square
  • Flash: GN14 - Exposure determined by range measured by autofocus
  • Film Winding: Manual - Lever wind + rewind crank
  • Features: Lens cap obscures viewfinder to prevent errors!
  • Dimensions: 132x76x54mm
  • Weight: 375 grams

The Honeywell AF system

"Designed by Honeywell for 35 mm cameras (visible light), uses a separate set of detectors and charge coupled devices along with a microprocessor to effect automatic focus. A correlation is performed between sets of detectors utilizing two different, widely separated small areas of the aperture. The technique is based, as in optical rangefinders, on the angular difference between separate receivers in superimposing the same scene. This technique effectively determines not only whether the system is out of focus, but the amount and direction of lens movement required to achieve optimum focus."

"Electronic Focus for Cameras", by N. Stauffer and D. Wilwerding March, Scientific Honeyweller, Volume 3, No. 1 March 1982

Links