Japanese Six (6×6)
Prewar and wartime models (edit)
Adler Six | Bonny Six | Clover-Six | Condor Six | First Six | Gelto Six | Gotex | Green | Lyra Six | Super Makinet Six | Mamiya Six | Miyako Six | Mulber Six | Mulix | National Six | Neure Six | Oko Six | Olympus Six | Pilot Six | Romax | Ugein | Vester-Six | Victor Six | Weha Six
Ehira Chrome Six | Minolta Six | Shinko Super | Weha Chrome Six
Freude Six | Heart Camera | Konter Six | Tsubasa Six
Postwar models ->
Japanese 6×6 TLR, pseudo TLR and medium format SLR ->
Japanese Semi (4.5×6) and older 6×9 ->

The Gelto Six (ゲルトシックス) is a Japanese 6×6 folder, made by Tōa Kōki and distributed by Hattori Tokei-ten. It is only mentioned in the government inquiry listing Japanese camera production as of April 1943.[1] It has a Gelto II shutter giving T, B, 1–300 speeds, made by Tōa Kōki.[2] The lens is a three-element Grimmel 75/3.5 made by Fujita Kōgaku Kikai.[3]

The camera is not listed in the official list of set prices compiled in October 1940 and published in January 1941.[4] It was thus not yet produced at the time.

No surviving example and no picture has been observed so far.


  1. "Kokusan shashinki no genjōchōsa" ("Inquiry into Japanese cameras"), item 91.
  2. "Kokusan shashinki no genjōchōsa" ("Inquiry into Japanese cameras"), shutter item 18-Q-2.
  3. "Kokusan shashinki no genjōchōsa" ("Inquiry into Japanese cameras"), lens item Lb6.
  4. "Kokusan shashinki no kōtei kakaku".


This camera is not listed in Sugiyama nor in Kokusan kamera no rekishi.