Pearlette

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The Pearlette (パーレット) is a Japanese folding camera taking 4×6.5cm and 3×4cm exposures on 127 film, made by Konishiroku (predecessor of Konica) from 1925 to the early postwar period. The Pearlette is historically significant as the first mass-produced Japanese camera.

See also the Special Pearlette and B Pearlette which have nothing in common except for the name and format.

General description

The Pearlette is a near-copy of the Piccolette by Contessa-Nettel, itself inspired by the Vest Pocket Kodak. The camera is easily recognized by the name Pearlette under the lens.

The front standard is mounted on a pair of scissor struts and extends to the bottom, acting as a standing leg. There is a round cut-off on each side of the body to pull out the front standard easily. A pivoting brilliant finder is mounted on one corner of the front plate. There are two tripod threads: one is at the bottom right, as seen by a photographer holding the camera vertically, and the other is on a strut joining the two sides of the trellis structure at the bottom. Most of the other features evolved during the camera's very long production run.

The regular models have a fixed-focus lens, either a simple meniscus achromat lens (usually US 8, i.e. f/11) or a triplet lens (f/6.8, later f/6.3). The shutter is a Woco by Wollensak or a Pegasus or Echo by Konishiroku, depending on the year of production. All have three speeds: 1/25, 1/50 and 1/100.

A special edition called the High-Grade Pearlette was also offered for a short time with higher lens and shutter specifications.

First generation: side loading

The first generation models have a removable side plate for film loading, and an advance key at the top left. They always display a logo on the front plate, opposite the brilliant finder, reading RK and ROKUOH SHA TOKYO.

1925 model: no wireframe, Wollensak lens and shutter

The Pearlette was introduced in June 1925.[1] The original model is mainly recognized by the absence of a wireframe finder, and the sliding button used to open the side.[2] The brilliant finder is of the folding type, and its front window has a thin rim surrounded by three small screws. There is a small hole on the front plate, next to the lens, whose purpose is unknown. The fixed body side is engraved PEARLETTE, and has a silver tripod attachment retained by three screws. The camera takes 4×6.5cm pictures only, and the back has a removable disc containing a single red window. The removable disc was used to clean or dismantle the lens, or to attach the camera to an enlarger, using it as an enlarging lens.[3] The scissor struts can be extended further by acting on a spring-loaded lever on the rear side of the front plate, at the bottom, allowing to take portrait pictures despite the fixed-focus lens.

The shutter is a N°0 Woco by Wollensak, marked N°0 WOCO above the lens and WOLLENSAK U.S.A. below. The speed is set by an index at the top, and the aperture scale is at the bottom. On the original version, the available speeds are T, 25, 50, 100. The camera exists with a Deltas Aplanat 75/6.8 lens or with a meniscus achromat lens whose aperture runs from 8 to 64 in the Uniform Scale.

It is said that the lesser version was priced at ¥17, and the f/6.8 version was priced at ¥25.[4] (The advertisements dated 1925 or 1926 observed so far, including that in Ars Camera December 1926 reproduced here, do not mention the price.)[5]

A dedicated users club was founded in April 1926, some months after the camera's release, continuing the trend initiated with the Minimum Society for the users of the Minimum Idea.[6] Initially called the Pearlette Alliance (パーレット連盟), it was renamed Pearlette Association (パーレット同人会) in May 1930.[7]

The earliest cameras have a large rivet placed under the front logo, well visible on the drawings in the advertisements, and confirmed on an original example.[8] Very soon, this part was moved towards the bottom, to the side of the lens near the puller grip, perhaps reflecting a change in the underlying mechanism.[9] It is said that the new release layout was first advertised in July 1928.[10] It is also said that the front logo was very slightly enlarged at about the same time and the front engravings became golden instead of silver-coloured.[11]

1929 model: wireframe finder and close-up attachment

The 1929 model[12] has a newer body with slightly larger dimensions.[13] It has a rectangular wireframe finder hinged to the front standard and containing a close-up lens in the middle, which stands in front of the taking lens when the wireframe is in the folded position. (The previous close-up device extending the scissor struts was removed.) The retractable eyepiece is hosted in the removable disc containing the red window, which is reportedly removed when turned by 90 degrees instead of 45 degrees.[14] The side latch consists of a pivoting lever instead of a sliding button. On the other side, the name is engraved in relief and the tripod attachment is black finished and retained by a single screw. The brilliant finder is rigid, with a thick rim around the front window and a chrome frame around the viewing lens. The release mechanism has been modified once again, with a cable release hole separate from the release button. Minor changes are visible on the front plate: the small hole on the side of the lens and the small rivet inside the logo have disappeared, and the large rivet on the same side has moved upwards again.

The 1929 model was reportedly released in May.[15] The earliest advertisements known so far are in the May 1929 issue of Asahi Camera and in the June 1929 issue of Shashin Geppō.[16] They mention the new wireframe and close-up attachment, and the rigid brilliant finder. The price is unchanged, at ¥17 for the lesser model with MA lens, and ¥25 for the model with Deltas f/6.8 lens.

In 1931, the wireframe hinge was reinforced and the front plate was enlarged a little.[17]

1932 model: Pegasus shutter, Japanese lenses

The imported lenses and shutters were replaced in 1932 by equipment made by Rokuoh-sha. The Pearlette has a Pegasus shutter giving B, 25, 50, 100 speeds. The shutter plate is mottled and marked PEGASUS at the top and ROKUOH-SHA at the bottom. This version exists with a Hexar Ser.II 75/6.3 lens and with an f/8 meniscus lens, said to be made by Asahi Kōgaku.[18]

An additional close-up lens for the brilliant finder is attached to the front wireframe,.[19]

New model: hinged back

The new Pearlette model, released in 1933, has fixed side plates and the back is hinged to the bottom. There is an advance knob at the top right and a tripod screw at the bottom right, as seen by a photographer holding the camera vertically.

This model was first sold with the Pegasus shutter but it was soon replaced by the Echo shutter. The shutter plate is black with a chrome rim. It is marked Echo at the top and Rokuoh-sha at the bottom and the position of the controls is the same.[20] This version with Echo shutter exists with an Optor 75/6.3 lens or an f/8 meniscus lens, both said to be made by Asahi Kōgaku.

The shutter plate was changed in 1937, with a metal stripe on each side.[21] The markings on the front plate were changed in 1940, with the disappearance of the logo and the adoption of a Pearlette name plate screwed to the bottom of the front standard.[22]

Notes

  1. June 1925: Asami, p.102 of Kurashikku Kamera Senka no.4 and p.48 of Kurashikku Kamera Senka no.10.
  2. This model corresponds to Sugiyama's item 1135.
  3. The use as an enlarging lens is reported in Kameari, p.1 of Camera Collectors' News no.11, and in Asami, p.103 of Kurashikku Kamera Senka no.4.
  4. Tables in Asami, p.103 of Kurashikku Kamera Senka no.4 and p.49 of Kurashikku Kamera Senka no.10, and in Kameari, p.6 of Camera Collectors' News no.11.
  5. An advertisement reportedly dated July 1925 is reproduced in Kameari, p.2 of Camera Collectors' News no.11, and in Sakai, p.11 of Kurashikku Kamera Senka no.10. That reproduced in Asami, p.48 of Kurashikku Kamera Senka no.10, is probably dated 1925 too.
  6. Asami, p.102 of Kurashikku Kamera Senka no.4.
  7. Asami, p.102 of Kurashikku Kamera Senka no.4.
  8. Example pictured in this page at R.Konishi Rokuoh-sha.
  9. In 1928, the T setting was replaced by a B setting, certainly a consequence of a change in the release mechanism with no internal change on the Woco shutter itself. The release lever was replaced by an inverted L-shaped button with a built-in cable release attachment, and a very small rivet appeared on the front plate, at the bottom part of the ROKUOH SHA logo. Transitional examples are known with superimposed T and B engravings, probably because stocks of shutter faces already engraved with the "T" were used until they ran out.<REF> See the pictures in this page at R.Konishi Rokuoh-sha.
  10. Asami, p.103 of Kurashikku Kamera Senka no.4 and p.48 of Kurashikku Kamera Senka no.10.
  11. Asami, p.103 of Kurashikku Kamera Senka no.4 and p.48 of Kurashikku Kamera Senka no.10.
  12. This model corresponds to Sugiyama's item 1136.
  13. Larger dimensions: Kameari, p.1 of Camera Collectors' News no.11.
  14. Turned by 90 degrees instead of 45 degrees: Asami, p.103 of Kurashikku Kamera Senka no.10.
  15. Asami, p.103 of Kurashikku Kamera Senka no.4 and p.49 of Kurashikku Kamera Senka no.10.
  16. Advertisement in Asahi Camera May 1929, p.A1, and advertisement in Shashin Geppō June 1929 reproduced in this page at R.Konishi Rokuoh-Sha. See also the advertisement in Shashin Geppō December 1930 reproduced in this page at R.Konishi Rokuoh-Sha.
  17. Sugiyama item 1137.
  18. See this page of the R. Konishi website.
  19. See Sugiyama item 1138.
  20. Sugiyama item 1139 and 1140.
  21. Sugiyama item 1144.
  22. Sugiyama item 1145 and 1146.

Bibliography

Links

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In Japanese:


Konishiroku prewar and wartime cameras (edit)
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