Idea (metal)

From Camera-wiki.org
Revision as of 11:15, 23 January 2008 by Rebollo fr (talk | contribs) (-WIP)
Jump to: navigation, search
Japanese plate cameras
Monocular cameras (edit)
No.0 (4×5cm) Secrette
atom (4.5×6cm) New Argus | Egorette | Secrette
Box cameras (edit)
No.0 (4×5cm) Adam | Hayatori Renshūyō
atom (4.5×6cm) Atom Hayatori Shashinki
meishi (5.5×8cm) Cherry
tefuda (8×10.5cm) Champion | Cherry | Sakura Army | Sakura Honor | Sakura Navy
nimaigake (8×12cm) Sakura Honor
kabine (12×16.5cm) Sakura Honor
Folding bed cameras (edit)
No.0 (4×5cm) Alpha | Sweet | Pony Sweet | Taishō-shiki
atom (4.5×6cm) Monarch | Need | Palma
meishi (5.5×8cm) Eagle | Idea A | Idea B | Idea Snap | Idea No.1 | Iris | Lily (horizontal) | Pearl No.3 | Special Camera | Venis | X
daimeishi (6.5×9cm) Apollo | Arcadia | Crite | Special East | Eaton | Elliotte | First | First Etui | Gold | Happy | Hope | Idea No.1 | Idea (metal) | Kinka | Kokka | Lily (horizontal) | Lily (metal) | Tropical Lily | Lloyd | Lomax | Masnette | Mikuni | Need | Nifca Klapp | Nifca Sport | Ohca | Palma | Peter | Prince | Prince Peerless | Proud | Romax | Rosen | Rubies | Sirius | Sun | Super | Tokiwa | Venus | Weha Idea | Weha Light
tefuda (8×10.5cm) Eagle | Idea A | Idea B | Idea No.1 | Idea (metal) | Iris | Lily (original) | Lily (horizontal) | Lily (metal) | Palma | Pearl No.3, No.4 | Minimum Pearl | Special Pearl | Sakura Palace | Sakura Pocket Prano | Star | Tokiwa | Weha
nimaigake (8×12cm) Eagle | Idea | Idea Binocular | Sakura Prano | Sakura Binocular Prano | Star Premo
hagaki (8×14cm) Eagle | Noble | Pearl No.3, No.4 | Star
kabine (12×16.5cm) Idea | Noble | Sakura Prano | Star Premo
Strut-folding cameras (edit)
No.0 (4×5cm) CH
atom (4.5×6cm) Idea Spring
meishi (5.5×8cm) Minimum Idea | Korok
daimeishi (6.5×9cm) Idea Spring | Minolta | Auto Minolta | Auto Press Minolta | Nifca-Dox | Vester Klapp
tefuda (8×10.5cm) Focal Happy | Idea Spring | Idea Telephoto
10×15cm Kongo Press
kabine (12×16.5cm) Idea Spring | Idea Telephoto
SLR cameras (edit)
atom (4.5×6cm) Simplex Reflex | Speed Reflex
meishi (5.5×8cm) Speed Reflex
daimeishi (6.5×9cm) Convex Reflex | Hogo Reflex | Idea Reflex (1932) | Neat Reflex | Simplex Reflex | Speed Reflex
tefuda (8×10.5cm) Idea Reflex (1910 and 1911) | Idea Reflex (1932) | Neat Reflex | Photo Deluxe Reflex | Speed Reflex
nimaigake (8×12cm) Idea Reflex (1910 and 1911) | Sakura Reflex Prano
kabine (12×16.5cm) Idea Reflex (1910 and 1911)
daikabine (13×18cm) Guaranteed Reflex
unknown Hardflex | Leinflex | Photoman Special Reflex
Stereo cameras
3.7×5cm Tokioscope
4×5in Idea Binocular | Sakura Binocular Prano
Japanese 3×4 and 4×4, 4×5 and 4×6.5, 4.5×6, 6×6 and 6×9 ->

The Idea (アイデア) are Japanese plate folders made by Rokuoh-sha, the manufacturing branch of Konishiroku (predecessor of Konica). This page is about the models made after the introduction of a metal body in 1930, existing in 6.5×9cm or 8×10.5cm size. All the metal Idea have a vertical body and split folding struts. For the earlier wooden models, see Idea (wooden).

1930 model

Description

The Idea models released in 1930 were the first to have a metal body.[1] The bellows have "one and a half" extension,[2] and there is a small focusing index on the photographer's right, moving along a distance scale. The U-shaped front standard has rounded contours and allows vertical movements;[3] it is pulled forward by two cylindrical pins. There is a brilliant finder, a wireframe hinged to the front standard and a small round eyepiece at the rear. There is a leather handle and a folding bed release at the top. The original ground glass hood has the name Rokuoh-sha embossed in the leather, and the metal plate holders and film pack holder also have ROKUOH-SHA inscribed in relief.

The known surviving examples show some variations in the position of the brilliant finder and consequently in the shape of the lens standard. At least three types exist. The presumably older one, observed in 6.5×9cm size, has the brilliant finder centered above the lens; this finder is collapsible and has a square window.[4] The presumably intermediate type, observed in 8×10.5cm size, has a large collapsible finder offset to the left, with a round window.[5] The presumably late type, observed in 6.5×9cm size, has a smaller rigid finder offset to the left, with a round window, similar to that of the 1933 Idea.[6]

Versions

The 1930 model exists in 6.5×9cm and 8×10.5cm size. In an advertisement in the June 1932 issue of Asahi Camera, the price is given as "from ¥35" for 6.5×9cm daimeishi size and "from ¥44" for 8×10.5cm tefuda size, with an f/6.8 lens.

The camera was reportedly offered with the following lens and shutter combinations:[7]

One example is also known with the Trinar f/6.3 lens and a Koilos shutter (T, B, 25–100), in 8×10.5cm size.[11]

Another example is known with a Nikkor 105mm f/4.5 lens by Nippon Kōgaku, a Compur shutter (T, B, 1–250) and the early type of viewfinder.[12] Nippon Kōgaku had previously made a preseries of Lily cameras with its earlier Anytar lenses, and it perhaps switched to the Idea for its first Nikkor lenses.

1933 model

New main body

The 1930 model was replaced in 1933 by the Year-Eight Idea (8年型アイデア), only existing in 6.5×9cm size. The name "Year-Eight Idea" refers to Shōwa year 8, i.e. 1933; this name is found in today's sources but it is not known if it was used at the time.[13] It has a different body, easily recognized by the angled front standard pulled out by two triangular handles. Limited vertical movements are available, as on the 1930 model. There is a rigid brilliant finder offset to the left; the wireframe finder has indents at the bottom, and the rear eyepiece has a rectangular shape. All these features would be shared by the Ohca plate folder released by Konishiroku in 1935.

Two models exist; the simpler one has a focusing system similar to the 1930 model, with a focusing index and distance scale on the photographer's right, the same as on the 1930 model. The advanced model has true double extension bellows, with more elaborate focusing rails, a small focus wheel on the right and the distance scale on the left. The modern sources imply that the two models were offered simultaneously, but this is unconfirmed, and the double extension model might plausibly have replaced the simpler one.

Japanese lenses and shutters

The Year-Eight Idea was the first model to have Japanese lenses and shutters. The camera was initially announced with a Zion f/6.3 or f/4.5 lens made by Asahi Kōgaku and an Apus or Zeus shutter by Rokuoh-sha, in all four possible combinations.[14] Some months later, the Zion lens was replaced by the Optor, again in f/6.3 or f/4.5; it seems that the Zeus shutter was renamed Durax at about the same time.[15] Sources are conflicting on whether the Optor f/6.3 and Durax combination was offered or not.[16]

The Idea was reportedly advertised with an Apus shutter in July and August 1936 issues of camera magazines, and as the "Idea New" (アイデア新型) with a Durax shutter in the July 1936 issue of Kogata Camera and in a catalogue by Yamashita Yūjirō Shōten dated April 1937.[17] The Idea was advertised again in the May 1939 issue of Asahi Camera, where it is said to have true double extension bellows.[18] In this advertisement, the price is given as ¥45 with an Apus shutter and f/6.3 lens, and as ¥50 with an f/4.5 lens. Brown or green leather covering was available for ¥2 extra. One source says that the green model comes with green bellows,[19] and one brown example has been reported with tan bellows.[20]

Surviving examples are known in the following combinations:

  • Zion Anastigmat 10.5cm f/6.3, Apus, single extension;[21]
  • Zion Anastigmat 10.5cm f/4.5, Apus, double extension (lens and shutter perhaps not original);[22]
  • Optor Anastigmat 10.5cm f/6.3, Apus, single extension;[23]
  • Optor Anastigmat 10.5cm f/6.3, Apus, double extension;[24]
  • Optor Anastigmat 10.5cm f/4.5, Apus, single extension;[25]
  • Optor Anastigmat 10.5cm f/4.5, Apus, double extension;[26]
  • Optor Anastigmat 10.5cm f/4.5, Durax, single extension;[27]
  • Optor Anastigmat 10.5cm f/4.5, Durax, double extension;[28]

No example has yet been observed with a Zeus shutter.

Notes

  1. Date: Kikuoka, p.30 of Kurashikku Kamera Senka no.10; Sugiyama, items 1096–9.
  2. "One and a half" extension: Kikuoka, p.30 of Kurashikku Kamera Senka no.10.
  3. Vertical movements: Kikuoka, p.30 of Kurashikku Kamera Senka no.10.
  4. Examples pictured in Sugiyama, items 1096 and 1103, and in McKeown, p.538.
  5. Example pictured in Sugiyama, item 1098.
  6. Examples pictured in Sugiyama, items 1097 and 1099.
  7. Kikuoka, p.31 of Kurashikku Kamera Senka no.10.
  8. This version is pictured in 6.5×9cm size in Sugiyama, item 1099 (where the lens name is wrongly spelled "Deltus"), and perhaps in McKeown, p.538.
  9. This version is pictured in 6.5×9cm size in Sugiyama, item 1096.
  10. This version is pictured in 6.5×9cm size in Sugiyama, item 1097.
  11. Example pictured in Sugiyama, item 1098.
  12. Example pictured in Sugiyama, item 1103, where it is dated 1935 for some reason.
  13. "Year-Eight Idea": Tanaka, p.40 of Kurashikku Kamera Senka no.10. Sugiyama, items 1100–2, says "Idea (Showa 8)" or "Idea Hand Camera (Showa 8)".
  14. Kikuoka, p.31 of Kurashikku Kamera Senka no.10; Tanaka, p.40 of the same magazine.
  15. Kikuoka, p.31 of Kurashikku Kamera Senka no.10, says August 1933 for the Optor and Durax; Tanaka, p.40 of the same magazine, says 1934 for the Optor.
  16. Kikuoka, p.31 of Kurashikku Kamera Senka no.10, does not list the Optor f/6.3 and Durax combination; Tanaka, p.40 of the same magazine, mentions this combination in the text.
  17. Kokusan kamera no rekishi, p.334.
  18. Advertisement reproduced in Kokusan kamera no rekishi, p.82.
  19. Tanaka, p.40 of Kurashikku Kamera Senka no.10.
  20. Example offered for sale by a dealer, with an Optor f/6.3 lens and Apus shutter; no picture was observed and the exact model is unknown.
  21. Examples pictured in Sugiyama, item 1101, in Kikuoka, p.30 of Kurashikku Kamera Senka no.10, and in Tanaka, p.40 of the same magazine (where it is wrongly reported as having an Optor).
  22. Example observed in an online auction. It has a depth-of-field table riveted on the side with the words Optor Anas.t 10.5c.m.
  23. Example observed in an online auction.
  24. Examples pictured in Lewis, p.47, and observed in an online auction.
  25. Examples pictured in Sugiyama, item 1100, in Kikuoka, p.30 of Kurashikku Kamera Senka no.10, and in Tanaka, p.40 of the same magazine.
  26. Example observed in a Chinese website.
  27. Example pictured in the first page of the Yamada Camera Museum.
  28. Examples pictured in Sugiyama, item 1102, and observed in online auctions.

Bibliography

Links

In Japanese: