Difference between revisions of "Aerotronica 69"

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The '''Aerotronica 69''' is an aerial camera made by [[Linhof]] in 1983.<ref name=hist>[http://www.linhof.com/history_e.html History] page at the [http://www.linhof.com/index-e.html Linhof] website.</ref> It makes 6x9-cm images on 70 mm film in a motorised magazine, allowing 320 exposures in one load.<ref name=hist/><ref>[http://www.auction2000.se/auk/w.Object?inC=WLPA&inA=20131004_0909&inO=441 Aerotronica 69] serial no. 9421055, with Tele-Arton 250 mm f/5.6, sold at the [http://www.auction2000.se/auk/w.AuctionList?inL=&inC=WLPA&inA=20131004_0909&inWLPAAuctionType=AUCTION 24th Westlicht Photographica Auction], on 23 November 2013.</ref> Lenses from 75 to 480 mm in focal length can be mounted by means of an adjustable lens-tube.<ref name=GP>[http://www.galerie-photo.com/linhof.html Linhof cameras] including the Aerotronica 69, at [http://www.galerie-photo.com/index.html Galerie-Photo] (text in French).</ref>
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The '''Aerotronica 69''' is an aerial camera made by [[Linhof]] in 1983.<ref name=hist>[http://linhof.com/en/linhof-history/ History] page at the [http://linhof.com/en/ Linhof] website.</ref> It makes 6x9-cm images on 70 mm film in a motorised magazine, allowing 320 exposures in one load.<ref name=hist/><ref>[https://wlpa.auction2000.se/auk/w.Object?inC=WLPA&inA=20131004_0909&inO=441 Aerotronica 69] serial no. 9421055, with Tele-Arton 250 mm f/5.6, sold at the [https://wlpa.auction2000.se/auk/w.AuctionList?inL=&inC=WLPA&inA=20131004_0909&inWLPAAuctionType=AUCTION 24th Westlicht Photographica Auction], on 23 November 2013.</ref> Lenses from 75 to 480 mm in focal length can be mounted by means of an adjustable lens-tube.<ref name=GP>[http://www.galerie-photo.com/linhof.html Linhof cameras] including the Aerotronica 69, at [http://www.galerie-photo.com/index.html Galerie-Photo] (text in French).</ref>
  
 
The camera relies on an innovative focal-plane shutter, composed of two discs, each with a slit, rotating continuously at slightly different speeds. A third shutter covers the rotating discs, and is opened to allow an exposure.
 
The camera relies on an innovative focal-plane shutter, composed of two discs, each with a slit, rotating continuously at slightly different speeds. A third shutter covers the rotating discs, and is opened to allow an exposure.
 
<ref name=Pat>[http://worldwide.espacenet.com/publicationDetails/originalDocument?CC=DE&NR=3316009A1&KC=A1&FT=D&ND=3&date=19841108&DB=worldwide.espacenet.com&locale=en_EP German Patent 3316009], ''Rotationsschlitzverschluß für Fotographische Kameras'' (Rotating slit-shutter for cameras), filed May 1983 and granted November 1984 to Linhof Präzisions-Kamera-Werke GmbH, and [http://worldwide.espacenet.com/publicationDetails/biblio?DB=worldwide.espacenet.com&II=1&ND=3&adjacent=true&locale=en_EP&FT=D&date=19841108&CC=DE&NR=3316009A1&KC=A1 Bibliographic Data page for the Patent], including English translation of the abstract, at [http://worldwide.espacenet.com/?locale=en_EP Espacenet], the patent search facility of the European Patent Office.</ref> The speed of the rotation of both discs is adjustable, giving a range of six speeds between 1/500 and 1/1500 second.  
 
<ref name=Pat>[http://worldwide.espacenet.com/publicationDetails/originalDocument?CC=DE&NR=3316009A1&KC=A1&FT=D&ND=3&date=19841108&DB=worldwide.espacenet.com&locale=en_EP German Patent 3316009], ''Rotationsschlitzverschluß für Fotographische Kameras'' (Rotating slit-shutter for cameras), filed May 1983 and granted November 1984 to Linhof Präzisions-Kamera-Werke GmbH, and [http://worldwide.espacenet.com/publicationDetails/biblio?DB=worldwide.espacenet.com&II=1&ND=3&adjacent=true&locale=en_EP&FT=D&date=19841108&CC=DE&NR=3316009A1&KC=A1 Bibliographic Data page for the Patent], including English translation of the abstract, at [http://worldwide.espacenet.com/?locale=en_EP Espacenet], the patent search facility of the European Patent Office.</ref> The speed of the rotation of both discs is adjustable, giving a range of six speeds between 1/500 and 1/1500 second.  
  
The camera has a frame-finder, with red and green LED indicator lamps in the eyepiece loop; these presumably indicate the state-of readiness of the camera.
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The camera has a frame-finder, with red and green LED indicator lamps in the eyepiece loop; these presumably indicate the state of readiness of the camera.
  
 
The camera can be powered by mains electricity or a battery pack.<ref name=GP/> A data-back was made for the camera.<ref name=GP/>  
 
The camera can be powered by mains electricity or a battery pack.<ref name=GP/> A data-back was made for the camera.<ref name=GP/>  

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The Aerotronica 69 is an aerial camera made by Linhof in 1983.[1] It makes 6x9-cm images on 70 mm film in a motorised magazine, allowing 320 exposures in one load.[1][2] Lenses from 75 to 480 mm in focal length can be mounted by means of an adjustable lens-tube.[3]

The camera relies on an innovative focal-plane shutter, composed of two discs, each with a slit, rotating continuously at slightly different speeds. A third shutter covers the rotating discs, and is opened to allow an exposure. [4] The speed of the rotation of both discs is adjustable, giving a range of six speeds between 1/500 and 1/1500 second.

The camera has a frame-finder, with red and green LED indicator lamps in the eyepiece loop; these presumably indicate the state of readiness of the camera.

The camera can be powered by mains electricity or a battery pack.[3] A data-back was made for the camera.[3]


Notes

  1. 1.0 1.1 History page at the Linhof website.
  2. Aerotronica 69 serial no. 9421055, with Tele-Arton 250 mm f/5.6, sold at the 24th Westlicht Photographica Auction, on 23 November 2013.
  3. 3.0 3.1 3.2 Linhof cameras including the Aerotronica 69, at Galerie-Photo (text in French).
  4. German Patent 3316009, Rotationsschlitzverschluß für Fotographische Kameras (Rotating slit-shutter for cameras), filed May 1983 and granted November 1984 to Linhof Präzisions-Kamera-Werke GmbH, and Bibliographic Data page for the Patent, including English translation of the abstract, at Espacenet, the patent search facility of the European Patent Office.