Difference between revisions of "Polaroid CB80 back for Holga"

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Polaroid introduced a camera back, the CB80, for the popular [[Holga]] cameras. Designed to use Type-80 peel-apart films, the back included a diopter lens, battery holder/6x6 mask, dark slide, and featured a tripod mount.
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{{Flickr_image
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|image_source= http://www.flickr.com/photos/davedunne/446260431/in/pool-camerawiki
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|image= http://farm1.static.flickr.com/214/446260431_8d60aeed12.jpg
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|image_text= Polaroid "Full Frame" Holga back<br/>for type 80 (square) film
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|image_by= Dave Dunne
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|image_rights= with permission
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It was most often sold with a Holga 120SF (hence the included battery holder), however the back can be purchased separately.  The CB80 can be used on any Holga 120-series camera.
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[[Polaroid]] introduced a camera back, designated '''CB80''', for the popular [[Holga]] camera, which many users dubbed "the Holgaroid."
  
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When first introduced, the image produced by a CB80 did not cover the full frame of the Type-80 film.  Shortly after its release, a modified CB80, called the CB80 Full Frame, was introduced that matched the full size of the film.
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Designed to use square-format Type 80 peel-apart films, the back kit included a diopter lens, a battery clip/6x6 mask, a dark slide, and featured a tripod mount. The negative diopter is necessary to adjust the Holga lens's focal length, as the film plane of the Polaroid back sits behind that of the original 120 film gate.  
  
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Due to the design of the back, the Holga viewfinder is completely obscured when the two are used together.  An external Holga "viewfinder" can be purchased that mounts onto the CB80 and provides an accurate view of the scene.  
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The back was often sold with a Holga 120SF (hence the included battery holder), however the back could be purchased separately. The CB80 fits correctly on any Holga 120-series camera.
  
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The original CB80 Polaroid back has been discontinued, however, in 2007, a new Polaroid back made by A-Power was released that is nearly identical to the CB80.  This back comes with the dark slide, diopter lens, 6×6 mask, and viewfinder.  The biggest improvement to this version is that it now takes the Type 660 (originally known as Type 100, and not to be confused with Type 600 which is an integral instant film used in Polaroid consumer cameras) films in addition to the Type 80, a move possibly made due to the discontinuation of the Type 80 films at the end of 2006. When using Type 660/100 films with the new back, a 6×6 image is produced, leaving a black area on the right of the image.
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When first introduced, the image produced by a CB80 did not cover the full frame of the Type-80 film. Shortly after its release, a modified CB80, called the CB80 Full Frame, was introduced that matched the full size of the film.
  
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The Polaroid back is known as Polgasun in Japan.
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Due to the design of the back, the Holga viewfinder is completely obscured when the two are used together. An external frame viewfinder could be purchased that mounts onto the CB80 and permits the framing of the image to be gauged.
  
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Polaroid square Type 80 film format was discontinued at the end of 2006, and Polaroid also ceased production of the CB80. (Ultimately, Polaroid ceased all production of [[instant film]].) Owners of the CB80 have a tiny and dwindling supply of expired film packs available to use with their Holgas.
  
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== Type 80 Films ==
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==A-Power back==
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However, in 2007, a new Polaroid back made by A-Power was released that functions exactly like the CB80.  This back comes with the dark slide, diopter lens, 6×6 mask, and viewfinder. The biggest improvement to this version is that it now takes the more common  3&frac14;&times;4&frac14; inch peel-apart film packs, including [[Fuji]]-branded film which remains in production. This is sometimes referred to as 100-series film (after Polaroid's original type number) or 660 series (as it included Polaroid types 664, 669, etc.). These must not to be confused with Type 600, which is an integral instant film used in Polaroid consumer cameras.
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When using Type 660/100 films with the new back, the image is still only 6×6 cm (approximately), leaving a black area on the right of the image.
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The Polaroid back was known as Polga Sun in Japan and the Polga branding is still used.
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== Type 80 films (all discontinued)==
  
 
*Type 84 - medium-contrast black and white film.  Produces a positive image.  ISO/100.
 
*Type 84 - medium-contrast black and white film.  Produces a positive image.  ISO/100.

Revision as of 02:25, 28 May 2011

446260431_8d60aeed12.jpg
Polaroid "Full Frame" Holga back
for type 80 (square) film
image by Dave Dunne (Image rights)

Polaroid introduced a camera back, designated CB80, for the popular Holga camera, which many users dubbed "the Holgaroid."

Designed to use square-format Type 80 peel-apart films, the back kit included a diopter lens, a battery clip/6x6 mask, a dark slide, and featured a tripod mount. The negative diopter is necessary to adjust the Holga lens's focal length, as the film plane of the Polaroid back sits behind that of the original 120 film gate.

The back was often sold with a Holga 120SF (hence the included battery holder), however the back could be purchased separately. The CB80 fits correctly on any Holga 120-series camera.

When first introduced, the image produced by a CB80 did not cover the full frame of the Type-80 film. Shortly after its release, a modified CB80, called the CB80 Full Frame, was introduced that matched the full size of the film.

Due to the design of the back, the Holga viewfinder is completely obscured when the two are used together. An external frame viewfinder could be purchased that mounts onto the CB80 and permits the framing of the image to be gauged.

Polaroid square Type 80 film format was discontinued at the end of 2006, and Polaroid also ceased production of the CB80. (Ultimately, Polaroid ceased all production of instant film.) Owners of the CB80 have a tiny and dwindling supply of expired film packs available to use with their Holgas.

A-Power back

However, in 2007, a new Polaroid back made by A-Power was released that functions exactly like the CB80. This back comes with the dark slide, diopter lens, 6×6 mask, and viewfinder. The biggest improvement to this version is that it now takes the more common 3¼×4¼ inch peel-apart film packs, including Fuji-branded film which remains in production. This is sometimes referred to as 100-series film (after Polaroid's original type number) or 660 series (as it included Polaroid types 664, 669, etc.). These must not to be confused with Type 600, which is an integral instant film used in Polaroid consumer cameras.

When using Type 660/100 films with the new back, the image is still only 6×6 cm (approximately), leaving a black area on the right of the image.

The Polaroid back was known as Polga Sun in Japan and the Polga branding is still used.


Type 80 films (all discontinued)

  • Type 84 - medium-contrast black and white film. Produces a positive image. ISO/100.
  • Type 85 - medium-speed, high-resolution black and white film. Produces both a positive image and a negative that can be printed later. ISO/80.
  • Type 87 - medium-contrast, high-speed, black and white film. Produces a positive image. ISO/3000
  • Type 88 - medium-contrast, medium-speed color film. Produces a positive image. Can be used for emulsion lifting and image transfers. ISO/80.
  • Type 89 - medium-speed, medium-grain color film. Accurately matches ISO 100 chrome films. Produces a positive image. ISO/100.


Links

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