Some Japanese advertisements from the 1930s list a lens called トリオナー (torionā) in katakana script, often in association with an Elka shutter. The corresponding Roman spelling is unclear, and may vary from one lens to the other. The possible alternatives are examined below.

The Trionar spelling is the most likely, and appears on numerous actual lenses:

  • a Steinheil München Anastigmat Trionar 105mm f/6.3 lens and dial-set Elka are known, reportedly coming from a Sun plate folder;[1]
  • the same combination is reported on a Need plate folder;[2]
  • a Steinheil Anastigmat Trionar 135mm f/6.3 and an Elka shutter have been reported on an unknown plate folder;[3]
  • a Fuji Optische Werk Anastigmat Trionar 105mm f/6.3 is known in an Elka-C shutter, reportedly coming from a Need plate folder;[4]
  • a Fuji Optische Werk Anastigmat Trionar 105mm f/4.5 is known in a Rulex A shutter, on an unidentified plate folder;[5]
  • a Trionar Anastigmat 75mm f/4.5 lens is reported on a Collex camera;[6]
  • Anastigmat Trionar 50mm f/4.5 lenses are known on the Lucky and Kinka Lucky.[7]

The name Steinheil Trionar was certainly specially carved for the Japanese market: it is only known on these Japanese products, and the normal brand name for the Steinheil three-element lenses was Cassar. The name "Fuji Optische Werk" certainly corresponds to the company Fuji Kōgaku, which maybe acquired the license of the Trionar lens to Steinheil, and maybe assembled the lenses from elements coming from Germany, the same as Neumann & Heilemann certainly did with the Radionar lenses licensed from Schneider.

Torioner is another possibility: a TORIONER lens marking has been observed on a National (4×6.5), for a fixed-focus f/6.8 lens associated with an Elka shutter.[8]

Torionar is closer to the katakana spelling, and a Torionar lens has been reported on the postwar Elliotte 6×6 TLR.[9] However this lens name has not yet been observed in a prewar context.

Terionar does not match the katakana spelling, but a Fuji Kōgaku Terionar f/4.5 lens has been observed with an Elka-C shutter on a surviving example of the Neure Six, certainly the result of a non-original repair.[10] A plausible guess would be that Fuji Kōgaku changed the lens name from Trionar to Terionar, perhaps after it severed the links with Steinheil and made the lens from optical elements made in house. See the Fuji Kōgaku lenses.

Notes Edit

  1. Yazawa, pp.10–1 of Camera Collectors' News no.265.
  2. Sugiyama, item 1212.
  3. See the posts at the bottom of this page of the Monomono blog.
  4. Yazawa, pp.10–1 of Camera Collectors' News no.265.
  5. Example pictured in this page of the Driving Outback blog.
  6. Sugiyama, item 1035.
  7. Advertisement in Asahi Camera July 1936, p.A62, showing an Anastigmat Trionar 50mm f/4.5 on a Lucky, and report in Sugiyama, item 3026, on a Kinka Lucky.
  8. Sugiyama, item 1209. The text wrongly reports "Torionar".
  9. Sugiyama, item 2097.
  10. Example pictured in the Umemoto history page.

Bibliography Edit

Links Edit

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