Difference between revisions of "Tōkyō Kōgaku lenses in Leica screw mount"

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In Japanese:
 
In Japanese:
 
* [http://www003.upp.so-net.ne.jp/Topconclub/lens6.htm Tōkyō Kōgaku 39mm screw lenses] at the [http://www003.upp.so-net.ne.jp/Topconclub/ Topcon Club website]
 
* [http://www003.upp.so-net.ne.jp/Topconclub/lens6.htm Tōkyō Kōgaku 39mm screw lenses] at the [http://www003.upp.so-net.ne.jp/Topconclub/ Topcon Club website]
* Pages of [http://www.cameraguild.jp/nekosan/ Nekosan's website]:
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* Pages of [http://archive.is/www.cameraguild.jp/nekosan/ Nekosan's website] (archived):
** [http://www.cameraguild.jp/nekosan/simlar9cm.htm C Simlar 9cm f/4]
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** [http://archive.is/www.cameraguild.jp/nekosan/simlar9cm.htm C Simlar 9cm f/4]
** [http://www.cameraguild.jp/nekosan/leotax.htm Leotax page] with Tōkyō Kōgaku 39mm screw lenses
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** [http://archive.is/www.cameraguild.jp/nekosan/leotax.htm Leotax page] with Tōkyō Kōgaku 39mm screw lenses
 
<!--Commented out link, page no longer present/availabe, please remove if not returned by 12/2015 * [http://ojyamarche.nobody.jp/leotax_lens.html Topcor 5cm f/2 and Topcor-S 5cm f/2] in [http://ojyamarche.nobody.jp/index.html Kensetsu's camera collection] -->
 
<!--Commented out link, page no longer present/availabe, please remove if not returned by 12/2015 * [http://ojyamarche.nobody.jp/leotax_lens.html Topcor 5cm f/2 and Topcor-S 5cm f/2] in [http://ojyamarche.nobody.jp/index.html Kensetsu's camera collection] -->
 
* [http://koujiyacamera.hamazo.tv/e738570.html Topcor 3.5cm f/2.8], [http://koujiyacamera.hamazo.tv/e741133.html Topcor 5cm f/3.5] and [http://koujiyacamera.hamazo.tv/e787583.html Topcor-S 5cm f/2] at [http://koujiyacamera.hamazo.tv/ Koujiya's blog]
 
* [http://koujiyacamera.hamazo.tv/e738570.html Topcor 3.5cm f/2.8], [http://koujiyacamera.hamazo.tv/e741133.html Topcor 5cm f/3.5] and [http://koujiyacamera.hamazo.tv/e787583.html Topcor-S 5cm f/2] at [http://koujiyacamera.hamazo.tv/ Koujiya's blog]

Revision as of 10:39, 29 June 2017


Tōkyō Kōgaku (maker of the Topcon cameras) made lenses in 39mm Leica mount for some Japanese Leica copies, mainly the Leotax. All were all chrome unless noted. The chronological order is State - C Simlar - Simlar - Topcor - Topcor S.

  • 35/2.8 Topcor, sold with a very big external finder
  • 50/3.5 State (collapsible)[1]
  • 50/3.5 C Simlar (collapsible)
  • 50/3.5 Simlar (collapsible), also as "Simlar 1:3,5 f=5cm Tokyo Opt. Co."
  • 50/3.5 Topcor (collapsible), diaphragm ring around the front lens, then around the barrel
  • 50/3.5 Topcor K (rigid), aluminium barrel and knurled rings
  • 50/2.8 Topcor,(rigid) black and chrome finish. (Heliar) Optical design is a copy of the 1952 Voigtländer (R&D) "Color Heliar" (Extremely rare lens due to very low production numbers)
  • 50/2 Topcor
  • 50/2 Topcor S, chrome, then black and chrome, then black with aluminium barrel
  • 50/1.8 Topcor S, black finish
  • 50/1.5 Simlar
  • 50/1.5 Topcor
  • 9cm f/4 C Simlar[2]
  • 90/3.5 Topcor, aluminium barrel and knurled rings, sold with an external finder
  • 135/3.5 Topcor, aluminium barrel, sold with an external finder with 50/90/135 frames


Notes

  1. Awano, p.123 of Kurashikku Kamera Senka no.32.
  2. See this page of Nekosan's website (archived).


Links

In Japanese:


M39
b
o
d
i
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(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 IIc | 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 | Yashica YE | Yashica YL | Yasuhara T981
(uk) Periflex | Reid
(ussr) FED | Zorki | MIR | Drug | Leningrad
M39
l
e
n
s
e
s
(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