Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
01-16-2010, 11:04 PM   #1
Pentaxian
ducdao's Avatar

Join Date: Dec 2009
Location: Montreal/Vermont
Posts: 2,160
How to identify Tomioka-made lenses?

Hey all,

I recently acquired a bunch of 50,55mm f1.4 lenses off Ebay. The brands are Sears, Mamiya/Sekor, Ricoh/Rikenon and Revuenon. Some sellers claim their lens is made my Tomioka some don't.

My question is how do we know for sure that a given lens is made by Tomioka? Is there a serial number convention like Vivitar or something else?

Thanks,

01-17-2010, 01:05 AM   #2
Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 27,259
Conventional wisdom is that Rikenon and most Sears (rebranded Ricoh) from the mid-late 60s and early 70s are Tomioka along with Yashinon and maybe Fujinon of the same vintage (all of the "-nons" ??). According to Ron Herron (Mamiya expert), Mamiya made their own lenses. It should be noted that Sears/Sekor lenses were made for Sears-labeled Mamiya cameras and were presumably made by Mamiya.

Notice that I said "conventional wisdom". There are other, respected, members on this forum who believe that Tomioka made the Mamiya/Sekor lenses as well.

As for serial numbers or other clues...there are none that I am aware of. The whole business of who made what in the 60s through the mid-80s is pretty foggy sometimes. Tight relationships as well as technology and manufacturing sharing occurred between many makers of both cameras and lenses. One of the best examples are the various Copal "Square" shutter bodies made by Nikon, Ricoh, Mamiya, Cosina, etc.. While the Ricoh variants are the best known, the design (and probably the tooling) was used by each of the other brands.

Steve

Last edited by stevebrot; 01-17-2010 at 01:14 AM.
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
k-mount, lens, pentax lens, slr lens, tomioka
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Who made Polaris lenses??? photobizzz Pentax SLR Lens Discussion 5 02-27-2012 04:29 PM
Can you help identify these lenses? - Soligor oxhoward Ask B&H Photo! 3 10-24-2010 08:15 AM
Russian made lenses Garyleed Pentax SLR Lens Discussion 25 11-30-2009 09:21 PM
How the lenses are made! jjdgti Pentax SLR Lens Discussion 19 05-30-2009 09:08 AM
Anyone able to identify these lenses? Zewrak Pentax SLR Lens Discussion 14 05-11-2008 03:04 PM



All times are GMT -7. The time now is 01:45 PM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top