View previous topic :: View next topic |
Author |
Message |
55
Joined: 13 May 2013 Posts: 717 Location: U.S.
Expire: 2022-06-15
|
Posted: Thu Mar 31, 2022 12:08 am Post subject: Rexatar and Rexagon lenses (in Prinz brochure) |
|
|
55 wrote:
Circa mid 1970s?
The branding here is curious. In the 1960s, American Camera and Photo Supply Co. began selling photo products under the Prinz brand name. Subsequently, it appears some Prinz lenses were sub-branded as Rexatar and Rexagon.
My own Rexagon 135mm lens was made in Japan and I would assume all the lenses listed here were made in Japan as well. But I have no information about the manufacturer.
#1
#2
#3
#4
#5
|
|
Back to top |
|
|
eggplant
Joined: 27 May 2020 Posts: 517
|
Posted: Wed Apr 06, 2022 1:15 pm Post subject: |
|
|
eggplant wrote:
Very nice to know this exists- I had been looking for brochures like this, which have diagrams, but all mostly in America hidden behind expensive shipping...
Thanks for the upload. |
|
Back to top |
|
|
RokkorDoctor
Joined: 27 Nov 2021 Posts: 1424 Location: Kent, UK
Expire: 2025-05-01
|
Posted: Wed Apr 06, 2022 2:30 pm Post subject: |
|
|
RokkorDoctor wrote:
What is the significance of the shaded lens elements in the diagrams? _________________ Mark
SONY A7S, A7RII + dust-sealed modded Novoflex/Fotodiox/Rayqual MD-NEX adapters
Minolta SR-1, SRT-101/303, XD7/XD11, XGM, X700
Bronica SQAi
Ricoh GX100
Minolta majority of all Rokkor SR/AR/MC/MD models made
Sigma 14mm/3.5 for SR mount
Tamron SP 60B 300mm/2.8 (Adaptall)
Samyang T-S 24mm/3.5 (Nikon mount, DIY converted to SR mount)
Schneider-Kreuznach PC-Super-Angulon 28mm/2.8 (SR mount)
Bronica PS 35/40/50/65/80/110/135/150/180/200/250mm |
|
Back to top |
|
|
55
Joined: 13 May 2013 Posts: 717 Location: U.S.
Expire: 2022-06-15
|
Posted: Wed Apr 06, 2022 10:56 pm Post subject: |
|
|
55 wrote:
eggplant wrote: |
Very nice to know this exists- I had been looking for brochures like this, which have diagrams, but all mostly in America hidden behind expensive shipping...
Thanks for the upload. |
You're welcome.
Yes, I really enjoy finding brochures for third party lenses. And this one was a pleasant surprise:
Full specs and it's even printed on nice, textured paper.
RokkorDoctor wrote: |
What is the significance of the shaded lens elements in the diagrams? |
That's a good question. At first glance, it would appear that cemented groups are shaded. But that doesn't seem to apply in all cases.
Maybe there are mistakes? Or maybe the shading is just marketing razzle dazzle?
I can confirm my copy of the Rexagon 100mm does have a cemented triplet. Alas, that triplet also has some separation.
And I know the Rexagon 135mm which came along with the brochure also has cemented elements... because it too has separation!
The brochure is better made than the lenses! |
|
Back to top |
|
|
RokkorDoctor
Joined: 27 Nov 2021 Posts: 1424 Location: Kent, UK
Expire: 2025-05-01
|
Posted: Thu Apr 07, 2022 9:10 am Post subject: |
|
|
RokkorDoctor wrote:
55 wrote: |
eggplant wrote: |
Very nice to know this exists- I had been looking for brochures like this, which have diagrams, but all mostly in America hidden behind expensive shipping...
Thanks for the upload. |
You're welcome.
Yes, I really enjoy finding brochures for third party lenses. And this one was a pleasant surprise:
Full specs and it's even printed on nice, textured paper.
RokkorDoctor wrote: |
What is the significance of the shaded lens elements in the diagrams? |
That's a good question. At first glance, it would appear that cemented groups are shaded. But that doesn't seem to apply in all cases.
Maybe there are mistakes? Or maybe the shading is just marketing razzle dazzle?
I can confirm my copy of the Rexagon 100mm does have a cemented triplet. Alas, that triplet also has some separation.
And I know the Rexagon 135mm which came along with the brochure also has cemented elements... because it too has separation!
The brochure is better made than the lenses! |
I first thought cemented lenses as well, but as you say, that is not the case for one of these designs.
My best guess would be that they indicate what were at the time considered to be low dispersion glass elements. _________________ Mark
SONY A7S, A7RII + dust-sealed modded Novoflex/Fotodiox/Rayqual MD-NEX adapters
Minolta SR-1, SRT-101/303, XD7/XD11, XGM, X700
Bronica SQAi
Ricoh GX100
Minolta majority of all Rokkor SR/AR/MC/MD models made
Sigma 14mm/3.5 for SR mount
Tamron SP 60B 300mm/2.8 (Adaptall)
Samyang T-S 24mm/3.5 (Nikon mount, DIY converted to SR mount)
Schneider-Kreuznach PC-Super-Angulon 28mm/2.8 (SR mount)
Bronica PS 35/40/50/65/80/110/135/150/180/200/250mm |
|
Back to top |
|
|
philslizzy
Joined: 07 Aug 2012 Posts: 4744 Location: Cheshire, England
|
Posted: Thu Apr 07, 2022 7:04 pm Post subject: |
|
|
philslizzy wrote:
there appear to be two Prinz brands, one was used by Dixons in UK. But their lenses wew simply branded Prinz, no name. Looking at them they probably came from the same budget maker _________________ Hero in the 'messin-with-cameras-for-the-hell-of-it department'. Official. |
|
Back to top |
|
|
55
Joined: 13 May 2013 Posts: 717 Location: U.S.
Expire: 2022-06-15
|
Posted: Tue Apr 12, 2022 5:51 pm Post subject: |
|
|
55 wrote:
RokkorDoctor wrote: |
. . .
My best guess would be that they indicate what were at the time considered to be low dispersion glass elements. |
Interesting. I usually associate "exotic" glass with first party manufacturers. But I'm not knowledgeable.
philslizzy wrote: |
there appear to be two Prinz brands, one was used by Dixons in UK. But their lenses wew simply branded Prinz, no name. Looking at them they probably came from the same budget maker |
Yes, it would be intriguing to know for certain if there was an association between the two. |
|
Back to top |
|
|
calvin83
Joined: 12 Apr 2009 Posts: 7568 Location: Hong Kong
|
Posted: Tue Apr 12, 2022 8:03 pm Post subject: |
|
|
calvin83 wrote:
RokkorDoctor wrote: |
that is not the case for one of these designs. |
That one may be just an mistake. I think it indicates cemented lenses too. _________________ https://www.instagram.com/_lens_fever/
The best lens is the one you have with you. |
|
Back to top |
|
|
Tefolium
Joined: 26 Mar 2021 Posts: 11 Location: japan
|
Posted: Fri Aug 23, 2024 6:05 am Post subject: |
|
|
Tefolium wrote:
I have a Rexagon 28mm 1:2.8, BUT it is Exa mount. |
|
Back to top |
|
|
|
|
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
|