Japanese Baby (3×4) and Four (4×4) (edit)
3×4 Baby Balnet | Doris | Baby Doris | Baby Germa | Kinsi | Baby Leotax | Loren | Baby Lyra | Baby Pearl | Baby Pilot | Baby Rosen | Baby Suzuka | Walz
4×4 Adler Four | Rosen Four
rigid or collapsible
3×4 Baika | Baby Chrome | Comet | Cyclon | Gelto | Baby Germa | Gokoku | Hamond | Baby Hawk | Kinka Lucky | Lausar | Light | Baby Light | Molby | Mulber | Olympic | Baby Ōso | Peacock | Picny | Ricohl | Rorox | Shinko Baby | Slick | Baby Sport | Tsubasa Arawashi | Baby Uirus | Zessan
3.5×4 Kenko 35
4×4 Alma Four | Andes Four | Anny 44 | Arsen | Balnet Four | Bonny Four | Freude | Kalimar 44 | Auto Keef | Kraft | Letix | Mykey-4 | Olympic Four | Roico | Royal Senior | Seica | Terra Junior | Vero Four | Welmy 44 | Yashica Future 127
Baby First | Baby Lyra Flex
Japanese SLR, TLR, pseudo TLR and stereo models ->
Japanese 4×5 and 4×6.5, 4.5×6, 6×6 and 6×9 ->

The Lausar (ローザー) and Baika (バイカ) are Japanese cameras taking 3×4cm pictures on 127 film, made c.1937 by Tomioka and perhaps Sankyō Kōgaku. They have a focal plane shutter and look like the Leica models of the time, though without a rangefinder. Their features are similar to the Riken No.1 and Gokoku, which appeared later and were perhaps related.


The camera has a dodecagonal metal body with leather covering and chrome top and bottom plates. The viewfinder is offset to the left, as seen by the photographer; it is contained in a short casing extending to the right. There is an accessory shoe next to the viewfinder, and the speed dial and shutter release are further to the right. The name, logo and serial number are engraved above the viewfinder.

The film is advanced by a knob at the right end, whose base is surrounded by an exposure counter. There is a fake rewind knob at the left end of the top plate: as the camera uses 127 it does not need rewind and the knob merely serves to make the camera look like a Leica. It seems that the back is removed together with the bottom plate for film loading, but the details are unknown.

It seems that the Lausar and Baika have an interchangeable lens, presumably with Leica screw mount.[1]

The Lausar[]

The Lausar (ローザー) is mainly known from a letter by Ōishi Hiroshi to a Japanese collectors' magazine.[2] The pictures show the only surviving example known so far. The name Lausar is engraved above the viewfinder, together with a logo, the company name Tomioka kogaku Tokyo and a serial number in the 11xx range.[3] The speed dial seems to have Z, 30–500 settings.

The lens is a collapsible Tomioka Lausar 5cm f/3.5. Its barrel is modelled on the Leitz Elmar 5cm f/3.5. The focusing mount is driven by a tab with an infinity stop. The diaphragm is controlled by an index around the front element, and the aperture scale goes from 3.5 to 18. The front rim is engraved Tomioka Lausar f=5cm 1:3,5.

Ōishi says that he asked the Tomioka company about the camera, and the answer was that "about ten prototypes were made at the time of the China events" (a euphemism for the war with China which broke out in 1937) but "it did not enter serial production because of the war".[4]

The Baika[]

The Baika (バイカ) is featured in the April 1937 issue of Camera Club, reproduced above.[5] The document presents the camera as a Leica copy,[6] and the name "Baika" itself is very close to Leica (ライカ, raika in Japanese). The word baika has various meanings in kanji characters, one of which is "plum blossom" (with the characters 梅花), but it is only written in katakana script in the document. The text describes auto-stop film advance, chrome finish, B, 25–500 speeds and a Lausar f/4.5 lens.[7] It gives the price of ¥120, and says that the camera was distributed by the Ōsaka department store Daimaru Hyakkaten.

A single surviving example of the Baika has been found, exactly similar to the camera pictured in Camera Club.[8] There is a Baika logo above the viewfinder, looking like a five-leaf plum blossom, an indication of origin MADE IN NIPPON TOKYO, a company name SANKYO KOGAKU and a serial number. The company might correspond to the current Sankyō Kōgaku Kōgyō, but nothing has yet been confirmed. The camera is identical to the Lausar by Tomioka, except for the lens.

The lens mounted on the Baika pictured in Camera Club and on the surviving example is a collapsible Lausar 5cm f/4.5. Its barrel is similar to that of the f/3.5 lens attached to the Lausar camera. The front element has a reduced diameter, and the aperture scale goes from 4.5 to 18. The front rim is engraved Lausar f=5cm 1:4,5, with no mention of the maker.

Relation with the Riken[]

The general aspect and the layout of the controls on the Lausar and Baika are very similar to the camera Riken announced in 1938 as the Riken No.1 and released in 1939 as the Gokoku. The main body of the Riken and Gokoku has a different, smoother shape, and it seems that they have no part in common with the Lausar and Baika. The design similarity is nonetheless striking, and this naturally leads to the hypothesis that Riken took over the Lausar or Baika project from Tomioka or Sankyō and developed it into the Gokoku.


  1. All the pictures of the Lausar and Baika seem to show an interchangeable lens, and a screw mount is mentioned in Awano, p.59 of Kurashikku Kamera Senka no.37. The compatibility with the Leica mount is plausible but unconfirmed.
  2. Ōishi, "Dokusha-dayori", pp.161–2 of Kurashikku Kamera Senka no.14.
  3. The number is perhaps 1198.
  4. Original text: 当社製である。戦前(支那事変当時当時)試作機として10台程造った。だが戦争のため量産化を断念した.
  5. Column in Camera Club April 1937, p.53.
  6. Original text: ライカのそっくりの型です.
  7. Kokusan kamera no rekishi, p.338.
  8. Example pictured in Awano, p.59 of Kurashikku Kamera Senka no.37.


Original document[]

  • Camera Club April 1937. "Sokuhōtō" (速報塔, News column). P.53.

Recent sources[]

The Lausar and Baika are not listed in Sugiyama.

(at) Wica
(de) Leica I (A) | Leica I (C) | Leica II (D) | Leica Standard (E) | Leica III (F) | Leica 250 Reporter | Leica IIIa (G) | Leica IIIb | Leica IIIc | Leica Ic | Leica IIIf | Leica IIIg
(ja)  Alta | Baika | Bessa L/T/R | Canon II/III/IV | Canon VT | Canon VIT | Canon P | Canon 7 | Canon 7s | Chiyoca | Chiyotax | Gokoku | Honor S1 | Honor SLIchicon-35 | Jeicy | Konica FR | Lausar | Leotax | Leotax G | Melcon | Melcon II | Muley | Nicca | Nicca III-L | Nippon | Tanack 35/IIIS/IV-S | Tanack SD | Tanack VP | Teica | Yasuhara T981
(uk) Periflex | Reid
(ussr) FED | Zorki | MIR | Drug | Leningrad
(de) Astro Berlin | Enna | Hensoldt | Isco | Meyer | Rodenstock | Schacht | Schneider | Steinheil | Voigtländer | Zeiss
(ja) Arco (Colinar, Snowva) | Canon (Serenar) | Fuji (Cristar, Fujinon) | K.O.L. (Xebec) | Konica (Hexanon) | Konishiroku (Hexar, Hexanon) | Kowa (Prominar)Kyōei (Acall) | Lena | Leotax | Chiyoda / Minolta (Rokkor) | Misuzu (Altanon) | MS Optical R&D | Nicca | Nippon Kōgaku (Nikkor) | Olympus (Zuiko)Orion (Supreme) | Pentax | Reise | Ricoh | Sankyō (Komura) | Shōwa Kōki (Piotar) | Sun (Sola, Sophia, Xebec) | Tanaka (Tanar) | Telesar | Tōkyō Kōgaku (Simlar, Topcor) | Voigtländer | Y.K. Optical (Kobalux, Avenon) | Zeika (Rojar) | Zuihō (Honor) | Teikoku / Zunow
(fr) Angénieux | Berthiot
(uk) Corfield | Dallmeyer | National Opt. Co. | Pam | Ross | Taylor, Taylor & Hobson
(it) Elionar | Koritska | Kristall | Trixar | Wega
(nl) Old Delft
(us) Bausch & Lomb | Kodak