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RE Auto Topcor serial number and name ring description
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PostPosted: Thu Oct 27, 2016 2:42 am    Post subject: Reply with quote

Welcome to the mflenses Teebain. There are not much info about Topcor lenses either on or off the web. The Topcon Story book written by Antonetto & Russo is the main source of information about Topcon cameras and lenses. Unfortunately the authors gathered their info from document available at the Italian branch of Topcon which might not be completed nor updated. Therefore there are lots of gaps and errors. This thread is a group effort to bring the information about RE Auto Topcor lenes up to date.

In your case the black 25/3.5 was not even mentioned in the book. All of the known serial numbers are overlapped with the silver V1. Your copy is indeed the very first black 25/3.5 with centimeter focal length ever found (so far). So unless we have a new challenger, you lenses will hold a special place in the hearts of all Topcon lovers. Like Dog

BTW A&R said that 7,500 25/3.5 lenses were made in total. Noone know how many of these were black.

Teebain wrote:
I just joined this forum, and it's my first forum experience. So I'll give it a try... I have read a number of entries on mflenses before, and it's been a great source of info on various lenses I've considered picking up.

Tonight I was searching for information on the topcor 2.5cm f3.5 black lens, and I found a serial number listing for this v3 black version in this part of the forum . I was wondering if anyone knows if serial number 933166 is truly the first black version made of roughly 700 total. I would really like to verify this as I just bought this lens with serial number 933166 from an online auction. Are there any topcor experts out there that can verify this for me. I had no idea about the serial number until after I purchased it. I picked it up due to the sample shots and comments for a retro focus ultra wide lens on my a7ii.


PostPosted: Thu Oct 27, 2016 2:55 am    Post subject: Reply with quote

It is interesting that A&R estimate that 2,000-3,000 copies were manufactured for this version. Your lenses might be a proof that more than 5,000 were made. Unless numbers were skipped.

y wrote:
Silver RE,Auto-Topcor 1:1,8 f=5,8cm Tokyo Kogaku Japan
s/n 99005302 - Previous last known is 99003686.

Btw what are the differences in optics among 58/1.8 variants mentioned by the OP?


PostPosted: Sat Oct 29, 2016 1:21 pm    Post subject: Reply with quote

Quote:
==============================================

58/1.8 (Topcon Code 116B)

RE.Auto-Topcor 1:1.8 f=5.8cm Tokyo Kogaku Japan 1160xxxx
Silver
First known: 1160001
Last known: 11608792 {member Oldhand http://forum.mflenses.com/viewtopic,p,1472365.html#1472365}

[The third iteration of 58/1.8 with same optics as 99B but in a slightly modified body]

==============================================


It seems that I have 3 lenses with a higher Serial no.



PostPosted: Thu Jan 12, 2017 10:12 pm    Post subject: Reply with quote

(Silver) RE, Auto-Topcor 1:3,5 f=25mm Tokyo Kogaku Japan 9367295

RE GN TOPCOR M 1:1,4 f=50mm TOKYO KOGAKU LMIJ (15703887)

(Silver) RE, Auto-Topcor 1:5,6 f=200mm Tokyo Kogaku Japan 9833480


PostPosted: Thu Feb 23, 2017 5:09 pm    Post subject: Reply with quote

Another rare 85mm 1.8 for sale on ebay, well within known parameters of serial numbers but the price is definitely going up! Glad I got mine sooner.

Click here to see on Ebay


PostPosted: Thu Feb 23, 2017 11:46 pm    Post subject: Reply with quote

Macca wrote:
Another rare 85mm 1.8 for sale on ebay, well within known parameters of serial numbers but the price is definitely going up! Glad I got mine sooner.

Click here to see on Ebay


Seemingly a fake listing, ebay removed it


PostPosted: Fri Feb 24, 2017 12:01 am    Post subject: Reply with quote

kds315* wrote:
Macca wrote:
Another rare 85mm 1.8 for sale on ebay, well within known parameters of serial numbers but the price is definitely going up! Glad I got mine sooner.

Click here to see on Ebay


Seemingly a fake listing, ebay removed it


Not sure I understand Klaus - what is a fake ebay listing, and why is it done?
T


PostPosted: Fri Feb 24, 2017 8:12 am    Post subject: Reply with quote

Oldhand wrote:
kds315* wrote:
Macca wrote:
Another rare 85mm 1.8 for sale on ebay, well within known parameters of serial numbers but the price is definitely going up! Glad I got mine sooner.

Click here to see on Ebay


Seemingly a fake listing, ebay removed it


Not sure I understand Klaus - what is a fake ebay listing, and why is it done?
T


Easy to see, usually very expensive stuff listed for some start auction price at say $45 and in the description there is an image (not text!!!) with some emai address in bright colors and BUY IT NOW FOR $2000 ONLY, "just contact me"
a dead give away that it is a hacked account and some fake auction listing piled up coming from that (guitars, carbon bikes, all exopensicve stuff...).

Of course I notice the always same pictures and usually report those asap then... Wink


PostPosted: Fri Feb 24, 2017 8:16 am    Post subject: Reply with quote

kds315* wrote:
Oldhand wrote:
kds315* wrote:
Macca wrote:
Another rare 85mm 1.8 for sale on ebay, well within known parameters of serial numbers but the price is definitely going up! Glad I got mine sooner.

Click here to see on Ebay


Seemingly a fake listing, ebay removed it


Not sure I understand Klaus - what is a fake ebay listing, and why is it done?
T


Easy to see, usually very expensive stuff listed for some start auction price at say $45 and in the description there is an image (not text!!!) with some emai address in bright colors and BUY IT NOW FOR $2000 ONLY, "just contact me"
a dead give away that it is a hacked account and some fake auction listing piled up coming from that (guitars, carbon bikes, all exopensicve stuff...).

Of course I notice the always same pictures and usually report those asap then... Wink


Thank you.
I have not encountered this before
T


PostPosted: Fri Feb 24, 2017 9:56 am    Post subject: Reply with quote

Thanks and sorry for posting, I`ve seen these types on Amazon frequently but not ebay and should have examined it more closely.


PostPosted: Fri Feb 24, 2017 1:58 pm    Post subject: Reply with quote

I don't think it is a fake listing. The link just need to be fixed.

Click here to see on Ebay


PostPosted: Fri Feb 24, 2017 5:04 pm    Post subject: Reply with quote

calvin83 wrote:
I don't think it is a fake listing. The link just need to be fixed.

Click here to see on Ebay


Ah that one, saw it....but I have one already Wink


PostPosted: Sun Mar 19, 2017 8:18 pm    Post subject: Reply with quote

RE Zoom Auto Topcor 4.7/87-205mm (1307610)
RE Auto Topcor 2.8/100mm (7506620)
RE Macro Auto Topcor 3.5/58mm (13700743)
Macro Topcor 3.5/30mm (1240740)

Greez, Stephan


PostPosted: Fri Jul 14, 2017 1:15 pm    Post subject: Reply with quote

There are four 85/1.8 currently available on eBay. Two of them have consecutive SN: 327 & 328. Wink

Click here to see on Ebay
Click here to see on Ebay


PostPosted: Fri Aug 25, 2017 7:44 am    Post subject: Reply with quote

Hi, I'm relatively new here. Chanced upon this thread when researching my newly purchased Topcon set which comes with a 58mm 1.4.

I believe the lens belongs to the classification below, serial 11251197.

V2
RE AUTO TOPCOR 1:1,4 f=58mm TOKYO KOGAKU 1125xxxx
Black

Hope to gather more information about this V2, and about the lens. Looking for the hood and front cap too.

Cheers


PostPosted: Tue Sep 05, 2017 10:06 pm    Post subject: Reply with quote

My old login was expired, So joined again.
I know I can't post pix yet...

I've gotten some new 300mm Topcon lenses:

R. Topcor 1:2.8 f=300mm Tokyo Kogaku Japan No.341445
R. Topcor 1:2.8 f=300mm Tokyo Kogaku Japan No.341588
RE AUTO TOPCOR 1:5.6 F = 300mm TOKYO KOGAKU 15500086
R.Topcor 1:5.6 f=30cm Tokyo Kogaku Japan 701239

Others:

Macro -Topcor 3.5/30mm Tokyo Kogaku Japan (second line) 1240399
RE ZOOM TOPCOR 1:4.7 f=87~205mm TOKYO KOGAKU 1305537
RE.AUTO-TOPCOR 1:1,4 F=5.8cm Tokyo Kogaku Japan 1128611
RE GN TOPCOR M 1:1.4 f=50mm TOKYO KOGAKU LENS MADE IN JAPAN (on side 15700190)

R. Topcor 1:2 f=13.5cm Tokyo Kogaku Japan No.318298

Thanks,

Rory Blake


PostPosted: Sun Nov 05, 2017 11:13 pm    Post subject: Reply with quote

I acquired recently a Tokyo Kogaku Topcor.
On the ring it says: RE Macro Auto Topcor 58mm/3.5
S/N: 13706173
Black version.
Missing the rubber ring but otherwise the glass looks pristine.


PostPosted: Mon Nov 06, 2017 12:06 am    Post subject: Reply with quote

Congrats, it's a nice lens, I'm also looking for the black 58/3.5 Macro and the black 58/1.8(with chrome filter ring), I'd love to find a black 25, but I doubt I'll ever find one.


PostPosted: Mon Nov 06, 2017 12:16 am    Post subject: Reply with quote

TKL wrote:
Quote:
==============================================

58/1.8 (Topcon Code 116B)

RE.Auto-Topcor 1:1.8 f=5.8cm Tokyo Kogaku Japan 1160xxxx
Silver
First known: 1160001
Last known: 11608792 {member Oldhand http://forum.mflenses.com/viewtopic,p,1472365.html#1472365}

[The third iteration of 58/1.8 with same optics as 99B but in a slightly modified body]

==============================================


It seems that I have 3 lenses with a higher Serial no.



Code 62B based on the F Auto-Topcor from: 620001 to 625115 (1963)
Code 99B new optics,2nd and 3rd elements were separated. from 99xxxxx to 9901920 (1964)
Code 116B new mechanicals, from 1160001 to 11608302 (1965)
Code 129B (black or chrome) optics changed again From: 1161xxxx to 11670435 last known (1966) your 3 are from this version, I have one, awesome lens.
Code 129BD (Navy) from: 1165xxxx to 11650401 last known (1967)
Code 129BG AUTO-TOPCOR (black) from: 1168xxxx to 11685922 last known (1971)

Up till11649999 focal length was in cm.


PostPosted: Mon Nov 06, 2017 1:56 pm    Post subject: Reply with quote

Bubbleboy2 wrote:


...
I've gotten some new 300mm Topcon lenses:

R. Topcor 1:2.8 f=300mm Tokyo Kogaku Japan No.341445
R. Topcor 1:2.8 f=300mm Tokyo Kogaku Japan No.341588
...
R. Topcor 1:2 f=13.5cm Tokyo Kogaku Japan No.318298

Thanks,

Rory Blake


Not bad Wink Congratulations!!

Stephan


PostPosted: Tue Nov 07, 2017 8:03 am    Post subject: Reply with quote

Yes, congrats, please post some pics from the 135/2, I don't think there are any samples on the forum yet.
I've been curious about it for a long while, since i got it's little brother, the R 135/3.5, I've since picked up the R 90/3.5, 200/4, & 300/5.6
There were possible prototypes of a 28/2.8 and 50/2.8 which I really wish they made. Sad


PostPosted: Wed Nov 22, 2017 11:42 am    Post subject: Reply with quote

Himself wrote:
I acquired recently a Tokyo Kogaku Topcor.
On the ring it says: RE Macro Auto Topcor 58mm/3.5
S/N: 13706173
Black version.
Missing the rubber ring but otherwise the glass looks pristine.

Thanks to Himself for doing a deal for the 58/3.5
It's grease was very stiff so I needed to clean and re-grease it.
Here it is all apart:
Recently Added-28

The front helicoid enters through the back of the middle helicoid:
All Photos-1610

The rear helicoid attached to the middle:
All Photos-1611

All back together with fresh grease:
All Photos-1613

The mount comes off with 4 screws, the aperture ring comes off next (the detent ball was missing).
4 screws hold the 2 guide rails(2 each) between the front and rear helicoids, and a witness mark where the helicoids break apart... That's it, way more simple than I expected.


PostPosted: Wed Nov 22, 2017 7:00 pm    Post subject: Reply with quote

Lightshow wrote:
Himself wrote:
I acquired recently a Tokyo Kogaku Topcor.
On the ring it says: RE Macro Auto Topcor 58mm/3.5
S/N: 13706173
Black version.
Missing the rubber ring but otherwise the glass looks pristine.

Thanks to Himself for doing a deal for the 58/3.5
It's grease was very stiff so I needed to clean and re-grease it.
...
The mount comes off with 4 screws, the aperture ring comes off next (the detent ball was missing).
4 screws hold the 2 guide rails(2 each) between the front and rear helicoids, and a witness mark where the helicoids break apart... That's it, way more simple than I expected.


Thanks for sharing this information. I have two RE 3.5/58mm Macro as well, one of them waiting to be re-greased.

Stephan


PostPosted: Thu Nov 23, 2017 5:52 am    Post subject: Reply with quote

Smile Glad to be of help.
I'll add a few more details for you, after removing the mount and aperture ring, I removed the rubber(if yours is original, check how soft it is), unscrewed the stop screw through the hole in the focus ring(I'm not sure I needed to do this, I assumed I did), set the lens to MFD, unscrewed the rails, then removed the rear helicoid, and added a witness mark in the area under the rubber in line with the center of the DOF scale where the helicoid separates, I did the same with the front helicod, there is a little pointer in the aperture mechanism that aligned with the same witness mark.

I didn't have a thin long screwdriver to separate the focus scale from the middle helicoid, so I didn't have clear access to the threads, so cleaning those threads were a bit of a challenge, I think it was a small flat blade ~1.2mm and the thin shaft needs to be ~1.5"/3cm long, mine are about 2cm long and couldn't reach the screws.

I also had a click/partial obstruction halfway in the focus travel, turns out the aperture bar/rail that attaches to the aperture ring needed to be bent out slightly near the end.

I just noticed my Auto aperture lever is missing a rail off the mount, someone removed it.... grrr
Could you photograph the backside of the mount showing the rail so I can make a replacement, thanks.


PostPosted: Fri Nov 24, 2017 12:51 pm    Post subject: Reply with quote

tao wrote:
Do you have any photos or a reference link?

According to Antonetto & Russo, of the four versions only the 99 & 116 series share the same optics.

y wrote:
Silver RE,Auto-Topcor 1:1,8 f=5,8cm Tokyo Kogaku Japan
s/n 99005302 - Previous last known is 99003686.

Btw what are the differences in optics among 58/1.8 variants mentioned by the OP?




The Silver one I have, with beauty ring; " RE,Auto-Topcor 1:1,8 f=5,8cm Tokyo Kogaku Japan 99005073 "
has one element more at the front than what is shown in any of the lens diagrams for a Topcor 58mm 1.8 at this page.

http://www.topgabacho.jp/Topconclub/lenscut.htm

On the 99005073 from front to rear side -> ( ( ((|)) )

Is that common knowledge or new information?