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serkol
Joined: 26 Aug 2012 Posts: 921 Location: Belarus
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Posted: Thu Sep 02, 2021 6:52 pm Post subject: Eta Praha Etastigmat 75 1.8 ? Any information about the lens |
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serkol wrote:
Eta Praha Etastigmat 75mm 1.8
Who has information about this lens? Urgent please _________________ Regards,
Sergey |
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caspert79
Joined: 31 Oct 2010 Posts: 3112 Location: The Netherlands
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Posted: Thu Sep 02, 2021 7:19 pm Post subject: |
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caspert79 wrote:
Meopta (Prague) most likely. Rare I guess. |
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serkol
Joined: 26 Aug 2012 Posts: 921 Location: Belarus
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Posted: Thu Sep 02, 2021 7:40 pm Post subject: |
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serkol wrote:
Thank you, caspert79!
Is this projection lens?
Meybe who has expiriens with this lens? _________________ Regards,
Sergey |
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caspert79
Joined: 31 Oct 2010 Posts: 3112 Location: The Netherlands
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Posted: Thu Sep 02, 2021 7:56 pm Post subject: |
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caspert79 wrote:
Its not a Meostigmat? Likely projector lens. |
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serkol
Joined: 26 Aug 2012 Posts: 921 Location: Belarus
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Posted: Thu Sep 02, 2021 9:07 pm Post subject: |
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serkol wrote:
caspert79 wrote: |
Its not a Meostigmat? Likely projector lens. |
I don't now... But it has an aperture, which is not typical for projection lenses _________________ Regards,
Sergey |
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visualopsins
Joined: 05 Mar 2009 Posts: 10948 Location: California
Expire: 2025-04-11
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Posted: Thu Sep 02, 2021 11:21 pm Post subject: |
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visualopsins wrote:
https://twitter.com/Con222/status/1243586216634642432 _________________ ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX-A ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (151B), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
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caspert79
Joined: 31 Oct 2010 Posts: 3112 Location: The Netherlands
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Posted: Fri Sep 03, 2021 5:42 am Post subject: |
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caspert79 wrote:
serkol wrote: |
caspert79 wrote: |
Its not a Meostigmat? Likely projector lens. |
I don't now... But it has an aperture, which is not typical for projection lenses |
True. Does it have a mount? |
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serkol
Joined: 26 Aug 2012 Posts: 921 Location: Belarus
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Posted: Fri Sep 03, 2021 6:45 am Post subject: |
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serkol wrote:
visualopsins wrote: |
https://twitter.com/Con222/status/1243586216634642432 |
I don't see that
caspert79, yes, it has a self-made mount _________________ Regards,
Sergey |
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Ernst Dinkla
Joined: 30 Nov 2016 Posts: 391
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Posted: Fri Sep 03, 2021 7:57 am Post subject: Re: Eta Praha Etastigmat 75 1.8 ? Any information about the |
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Ernst Dinkla wrote:
serkol wrote: |
Eta Praha Etastigmat 75mm 1.8
Who has information about this lens? Urgent please |
I just searched for ETA Praha.
https://www.etasince1943.com/contact-us/
Probably part of a product made and distributed by ETA with a third party lens rebranded.
EDit3: Not quite, the ETA company was established in 1943 and probably merged after WWII with other companies to what we know as Meopta, communists period. However the ETA brand names were continued for some time. I hit on something else; the Spektarreta, a 3 prism splitter color camera for monochrome film developed in 1939 by another CZ company that merged into Meopta. Ives style of beam splitter cameras that could use a fast lens. On this web page described with a 70mm 2.9 but possibly tried with other lenses in prototypes. Limited production around 1950.
http://camera-wiki.org/wiki/Spektaretta and http://www.fotoburzapraha.cz/ofotografii/muzeum_spektareta.html
A bit too fast for an enlarger lens I guess. Though Friedrich München had a 75mm 1.9 6 elements design. I guess Etastigmat sounds a bit inferiour to 'S' Coronar.
EDit: a Meopta camera relabeled by ETA, https://www.ebay.com/itm/274444175517
EDit2: the owner of this web page must be quite informed on ETA cameras: https://www.ceskefotoaparaty-flexaret.cz/2020/02/28/etareta/ _________________ Met vriendelijke groet, Ernst
http://www.pigment-print.com/spectralplots/spectrumviz_1.htm
March 2017 update, 750+ inkjet media white spectral plots
Last edited by Ernst Dinkla on Fri Sep 03, 2021 9:06 am; edited 2 times in total |
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serkol
Joined: 26 Aug 2012 Posts: 921 Location: Belarus
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Posted: Fri Sep 03, 2021 8:13 am Post subject: Re: Eta Praha Etastigmat 75 1.8 ? Any information about the |
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serkol wrote:
Ernst Dinkla, thank you.
Yes, you right. Probably that lens for enlarger _________________ Regards,
Sergey |
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caspert79
Joined: 31 Oct 2010 Posts: 3112 Location: The Netherlands
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Posted: Fri Sep 03, 2021 5:11 pm Post subject: |
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caspert79 wrote:
I remember reading that some of the lenses of the Flexaret were the sharpest of any TLR. |
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Ernst Dinkla
Joined: 30 Nov 2016 Posts: 391
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Posted: Sat Sep 04, 2021 8:36 am Post subject: |
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Ernst Dinkla wrote:
caspert79 wrote: |
I remember reading that some of the lenses of the Flexaret were the sharpest of any TLR. |
In the category of Triplet and Tessar TLRs then. I am not aware of a Meopta TLR double gauss lens version like the Planar or Xenotar made by Rollei. Or some Mamiya TLRs, maybe a Gowland with double gauss design lenses _________________ Met vriendelijke groet, Ernst
http://www.pigment-print.com/spectralplots/spectrumviz_1.htm
March 2017 update, 750+ inkjet media white spectral plots |
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caspert79
Joined: 31 Oct 2010 Posts: 3112 Location: The Netherlands
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Posted: Sat Sep 04, 2021 10:22 am Post subject: |
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caspert79 wrote:
Ernst Dinkla wrote: |
caspert79 wrote: |
I remember reading that some of the lenses of the Flexaret were the sharpest of any TLR. |
In the category of Triplet and Tessar TLRs then. I am not aware of a Meopta TLR double gauss lens version like the Planar or Xenotar made by Rollei. Or some Mamiya TLRs, maybe a Gowland with double gauss design lenses |
Yeah, you are probably right. In the Tessar category. |
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serkol
Joined: 26 Aug 2012 Posts: 921 Location: Belarus
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Posted: Thu Sep 09, 2021 8:00 pm Post subject: |
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serkol wrote:
Now i have this lens. First imression - intresting. Maybe low contrast, but i love this type lens.
I don't know about optical formula. But 75/1.8 suggested this no tessar and no triplet
Adaptation is good, helicoid and diaphragm works propertly
изображение_viber_2021-09-02_14-23-32-527 by serkol64, on Flickr
изображение_viber_2021-09-02_14-23-30-499 by serkol64, on Flickr
изображение_viber_2021-09-02_14-23-34-157 by serkol64, on Flickr
On Sigma fp
_FP00719_2048px by serkol64, on Flickr
_FP00686_2048px by serkol64, on Flickr _________________ Regards,
Sergey |
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caspert79
Joined: 31 Oct 2010 Posts: 3112 Location: The Netherlands
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Posted: Thu Sep 09, 2021 8:14 pm Post subject: |
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caspert79 wrote:
Pretty cool. Nice results! |
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serkol
Joined: 26 Aug 2012 Posts: 921 Location: Belarus
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Posted: Thu Sep 09, 2021 8:22 pm Post subject: |
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serkol wrote:
caspert79, thank you! _________________ Regards,
Sergey |
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Knudsen
Joined: 16 Jun 2021 Posts: 115 Location: Indiana
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Posted: Thu Sep 09, 2021 11:55 pm Post subject: |
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Knudsen wrote:
I like it serkol!
_________________ ~Jon |
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tromboads
Joined: 29 May 2012 Posts: 1655 Location: Melbourne AU
Expire: 2015-10-01
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Posted: Fri Sep 10, 2021 2:26 am Post subject: |
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tromboads wrote:
Nothing wrong with lower contrast.
Stuff looks good. |
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visualopsins
Joined: 05 Mar 2009 Posts: 10948 Location: California
Expire: 2025-04-11
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Posted: Fri Sep 10, 2021 2:47 am Post subject: |
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visualopsins wrote:
Search for "Eta Etareta" on this page https://www.tresbohemes.com/2017/04/a-collection-of-old-czech-cameras/ _________________ ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX-A ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (151B), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
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serkol
Joined: 26 Aug 2012 Posts: 921 Location: Belarus
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Posted: Fri Sep 10, 2021 6:53 am Post subject: |
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serkol wrote:
Knudsen, tromboads, visualopsins thank you!
_FP00708_2048px by serkol64, on Flickr _________________ Regards,
Sergey |
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Ernst Dinkla
Joined: 30 Nov 2016 Posts: 391
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Posted: Fri Sep 10, 2021 9:56 am Post subject: |
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Ernst Dinkla wrote:
Nice images, good transition to the backgrounds.
Odd aperture scale or is that the aperture 'ring' as well? Any idea about the coverage, I do not see light fall off on the FF images, cropped images? You can reach infinity with it? Aperture in between lens groups or at the rear?
On the origins; Meopta made a lot of military equipment too, during WWII and afterwards. Still does. But the labeling related to ETA is confusing then, that was more a label for distribution to consumers as I understand it. _________________ Met vriendelijke groet, Ernst
http://www.pigment-print.com/spectralplots/spectrumviz_1.htm
March 2017 update, 750+ inkjet media white spectral plots |
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kds315*
Joined: 12 Mar 2008 Posts: 16621 Location: Weinheim, Germany
Expire: 2021-03-09
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Posted: Fri Sep 10, 2021 2:11 pm Post subject: Re: Eta Praha Etastigmat 75 1.8 ? Any information about the |
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kds315* wrote:
serkol wrote: |
Ernst Dinkla, thank you.
Yes, you right. Probably that lens for enlarger |
Honestly doubt that, a f1.8 lens for an enlarger makes not much sense (despite some existing) - wasted efforts based on the needed correction which is difficut to achieve.
Congrats, very nice results you got Serkol!!
_________________ Klaus - Admin
"S'il vient a point, me souviendra" [Thomas Bohier (1460-1523)]
http://www.macrolenses.de for macro and special lens info
http://www.pbase.com/kds315/uv_photos for UV Images and lens/filter info
https://www.flickr.com/photos/kds315/albums my albums using various lenses
http://photographyoftheinvisibleworld.blogspot.com/ my UV BLOG
http://www.travelmeetsfood.com/blog Food + Travel BLOG
https://galeriafotografia.com Architecture + Drone photography
Currently most FAV lens(es):
X80QF f3.2/80mm
Hypergon f11/26mm
ELCAN UV f5.6/52mm
Zeiss UV-Planar f4/60mm
Zeiss UV-Planar f2/62mm
Lomo Уфар-12 f2.5/41mm
Lomo Зуфар-2 f4.0/350mm
Lomo ZIKAR-1A f1.2/100mm
Nikon UV Nikkor f4.5/105mm
Zeiss UV-Sonnar f4.3/105mm
CERCO UV-VIS-NIR f1.8/45mm
CERCO UV-VIS-NIR f4.1/94mm
CERCO UV-VIS-NIR f2.8/100mm
Steinheil Quarzobjektiv f1.8/50mm
Pentax Quartz Takumar f3.5/85mm
Carl Zeiss Jena UV-Objektiv f4/60mm
NYE OPTICAL Lyman-Alpha II f1.1/90mm
NYE OPTICAL Lyman-Alpha I f2.8/200mm
COASTAL OPTICS f4/60mm UV-VIS-IR Apo
COASTAL OPTICS f4.5/105mm UV-Micro-Apo
Pentax Ultra-Achromatic Takumar f4.5/85mm
Pentax Ultra-Achromatic Takumar f5.6/300mm
Rodenstock UV-Rodagon f5.6/60mm + 105mm + 150mm
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serkol
Joined: 26 Aug 2012 Posts: 921 Location: Belarus
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Posted: Sat Sep 11, 2021 7:26 am Post subject: |
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serkol wrote:
Ernst Dinkla wrote: |
Odd aperture scale or is that the aperture 'ring' as well? Any idea about the coverage, I do not see light fall off on the FF images, cropped images? You can reach infinity with it? Aperture in between lens groups or at the rear?
On the origins; Meopta made a lot of military equipment too, during WWII and afterwards. Still does. But the labeling related to ETA is confusing then, that was more a label for distribution to consumers as I understand it. |
Yes, you right, aperture 'ring' is strange. Aperture in between lens groups.
This pictures made with Sigma fp - fullframe mirorless camera, without crop.
Yes, I can reach infinity with it.
I still don't know about sources this lens
kds315* wrote: |
Honestly doubt that, a f1.8 lens for an enlarger makes not much sense (despite some existing) - wasted efforts based on the needed correction which is difficut to achieve.
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Thank you, Klaus.
Maybe you right too.
Intrigue is keeping )) _________________ Regards,
Sergey |
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serkol
Joined: 26 Aug 2012 Posts: 921 Location: Belarus
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Posted: Tue Sep 14, 2021 7:52 am Post subject: |
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serkol wrote:
_FP00654 bw A25_2048px by serkol64, on Flickr _________________ Regards,
Sergey |
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serkol
Joined: 26 Aug 2012 Posts: 921 Location: Belarus
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Posted: Mon Sep 20, 2021 5:50 pm Post subject: |
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serkol wrote:
_FP00700_2048px by serkol64, on Flickr _________________ Regards,
Sergey |
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