Home
SearchSearch MemberlistMemberlist RegisterRegister ProfileProfile Log in to check your private messagesLog in to check your private messages Log inLog in

Topcor RE lens diagrams?
View previous topic :: View next topic  


PostPosted: Wed Jun 15, 2016 5:55 pm    Post subject: Topcor RE lens diagrams? Reply with quote

During the last few months quite few RE Topcors happened to arrive here (at least more than i would have expected when i got my first Topcon RE):

* Tokyo Kogaku RE Auto-Topcor 20mm 1:4
* Tokyo Kogaku RE Auto-Topcor 28mm 1:2.8
* Tokyo Kogaku RE Auto-Topcor 5,8cm 1:1.4
* Tokyo Kogaku RE Auto-Topcor 58mm 1:1.8
* Tokyo Kogaku RE Macro Auto-Topcor 58mm 1:3.5
* Tokyo Kogaku RE Auto-Topcor 10cm 1:2.8
* Tokyo Kogaku RE Auto-Topcor 135mm 1:3.5
* Tokyo Kogaku RE Auto-Topcor 200mm 1:5.6

Does anyone have lens diagrams of these lenses? Of course also other lens diagrams, eg. of the following, would be nice:

* Tokyo Kogaku RE Auto-Topcor 25mm 1:3.5
* Tokyo Kogaku RE Auto-Topcor 85mm 1:1.8
* Tokyo Kogaku RE Auto-Topcor 300mm 1:5.6

... and maybe even of these beasts ...??

* Tokyo Kogaku RE Topcor 135mm 1:2
* Tokyo Kogaku RE Topcor 300mm 1:2.8

Any help is greatly appreciated - i plan to write about my experiences with the first mentioned RE Topcors, and some additional information about their construction would be nice.

Stephan


PostPosted: Wed Jun 15, 2016 6:13 pm    Post subject: Reply with quote

You can find most of the diagram here. If you can find the diagram of R Topcor 13,5cm F2, please post it here.
http://www.topgabacho.jp/Topconclub/lenscut.htm

and if you need a larger diagram of the two super-tele.
http://www.topgabacho.jp/Topconclub/lens3.htm

P.S.
The following lenses does not exist, see the list of RE Topcors here http://forum.mflenses.com/re-auto-topcor-serial-number-and-name-ring-description-t65089.html .

* Tokyo Kogaku RE Topcor 135mm 1:2
* Tokyo Kogaku RE Topcor 300mm 1:2.8


PostPosted: Wed Jun 15, 2016 6:37 pm    Post subject: Reply with quote

Thank you very much for your answer and the information contained therein!

Stephan


PostPosted: Wed Jun 15, 2016 10:11 pm    Post subject: Reply with quote

* Tokyo Kogaku RE Auto-Topcor 20mm 1:4



* Tokyo Kogaku RE Auto-Topcor 25mm 1:3.5



* Tokyo Kogaku RE Auto-Topcor 28mm 1:2.8



PostPosted: Thu Jun 16, 2016 2:48 am    Post subject: Reply with quote

Thanks for providing the diagram of the RE 28/2.8. Thank you!


PostPosted: Thu Jun 16, 2016 6:16 am    Post subject: Reply with quote

Excellent to have, thanks all a lot!! Like 1 small Like 1 small Like 1 small

I moved it to the LENSES STICKY section!!


PostPosted: Thu Jun 16, 2016 7:33 pm    Post subject: Reply with quote

Mir wrote:

...

* Tokyo Kogaku RE Auto-Topcor 28mm 1:2.8



Extremely useful information, especially since the focusing of my "new" RE Auto-Topcor 2.8/28mm is quite stiff (cometically it looks quite nice, though). I'll carefully try to dismantle the lens, clean the focusing, and re-build it.

Thank you very much!

Stephan


PostPosted: Fri Jun 17, 2016 6:02 am    Post subject: Reply with quote

Awesome! Thank you.
I hope to see more diagrams.
Edit: just found a bunch http://www.topgabacho.jp/Topconclub/lenscut.htm
Missing from the above link:
Auto Topcor 100/2.8
R 135/2
RE 28/2.8
Any others?

Steve, can we see a family portrait of the RE's please.


PostPosted: Fri Jun 17, 2016 11:47 am    Post subject: Reply with quote

Lightshow wrote:
Awesome! Thank you.
I hope to see more diagrams.
Edit: just found a bunch http://www.topgabacho.jp/Topconclub/lenscut.htm
Missing from the above link:
Auto Topcor 100/2.8
R 135/2
RE 28/2.8
Any others?

Steve, can we see a family portrait of the RE's please.


Yes, for sure - i'm quite busy right now taking images in London, Rome, near St Moritz and in the Vinschgau (German speaking part of Itlay near the Swiss border), and that's why i'm late publishing the promised "family portrait". Probably tomorrow! I hope that a corresponding Edixa => Sony E adapter will arrive next week. Of course i'm quite curious about the Topcors performance, even though i fear they're a bit over-hyped. But let's see ... Wink

Stephan


PostPosted: Sat Jun 18, 2016 2:15 am    Post subject: Reply with quote

stevemark wrote:
Lightshow wrote:
Awesome! Thank you.
I hope to see more diagrams.
Edit: just found a bunch http://www.topgabacho.jp/Topconclub/lenscut.htm
Missing from the above link:
Auto Topcor 100/2.8
R 135/2
RE 28/2.8
Any others?

Steve, can we see a family portrait of the RE's please.


Yes, for sure - i'm quite busy right now taking images in London, Rome, near St Moritz and in the Vinschgau (German speaking part of Itlay near the Swiss border), and that's why i'm late publishing the promised "family portrait". Probably tomorrow! I hope that a corresponding Edixa => Sony E adapter will arrive next week. Of course i'm quite curious about the Topcors performance, even though i fear they're a bit over-hyped. But let's see ... Wink

Stephan

The 58/1.8, 58/1.4, & 85/1.8 are not hype, they are some very impressive lenses, my Topcor's are all tagged in my Flickr feed.


PostPosted: Sat Jun 18, 2016 5:57 am    Post subject: Reply with quote

stevemark wrote:

* Tokyo Kogaku RE Auto-Topcor 28mm 1:2.8
Extremely useful information, especially since the focusing of my "new" RE Auto-Topcor 2.8/28mm is quite stiff (comedtically it looks quite nice, though). I'll carefully try to dismantle the lens, clean the focusing, and re-build it.

Thank you very much!

Stephan

Just be careful with the rubber focus grip, some lenses they become dried out and brittle, just have to run your fingernail across the rubber, if it feels soft and grippy you should be fine.


PostPosted: Sat Jun 18, 2016 3:24 pm    Post subject: Reply with quote

Lightshow wrote:

...
Just be careful with the rubber focus grip, some lenses they become dried out and brittle, just have to run your fingernail across the rubber, if it feels soft and grippy you should be fine.


Thanks for that advise! Luckily, only two of the rubbers are a bit loose, but none of them is really dry / brittle.

And here are the "family photos" i promised earlier Wink




Stephan