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Lexx
Joined: 15 Feb 2016 Posts: 75 Location: Russia
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Posted: Thu Sep 13, 2018 8:26 am Post subject: GOI Helios 75mm f/1.35 prototype cine lens adapted to EOS |
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Lexx wrote:
Hello!
I finished the long-awaited adaptation of the GOI Helios 75mm 1.35 cine lens to the full frame with a stainless steel helicoid. More information about this lens and its history you can read here http://lens-club.ru/lenses/item/c_9807.html and here https://dphotoworld.net/publ/photomuseum/goi_gelios_75_mm_f_1_35/7-1-0-921
The rear focal length of the lens is 46mm, so the main task was to reduce the distance between the rear lens and the camera sensor. To do this, instead of the rear wall of the helicoid, use the EF bayonet in the form of the M42-EOS adapter, and also cut the M42 thread in it and increase the diameter of the hole so that the back of the lens would go there when focusing to infinity. The length of the helicoid came out 25cm, I thought it would be a fairly large minimum distance focusing, but it turned out to be more than enough for a close portrait portrait and is about 20cm.
Conducted the first testing of GOI Helios 75 1.35 in cloudy weather. Shooting on an open aperture. Camera - Canon 6D. Сorrection - sharpness, contrast.
GOI Helios 75mm f/1.35 is a very unusual lens and quite specific. I can not say a good drawing or a bad one, but it is definitely unique. At long range I do not understand what is happening at all - some kind of ball appears in the center, similar to a portal in another dimension). On the near and middle ones it tears and twists the background, distinctly drawing circles and ellipses with brightly drawn borders. Color rendition is good and natural. Sharpness on the open is weak - in the central part is better, but closer to the edges increases soft and other aberrations.
Next, I plan to conduct a full-scale photo shoot to find out how fit it is for portrait photography.
I will be glad to hear the opinions about these photos and the drawing of the lens.
Last edited by Lexx on Sat Sep 29, 2018 5:53 pm; edited 1 time in total |
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y
Joined: 11 Aug 2013 Posts: 304 Location: EU
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Posted: Thu Sep 13, 2018 8:41 am Post subject: |
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y wrote:
What a hallucinogenic effect. It's not very pleasing. |
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kds315*
Joined: 12 Mar 2008 Posts: 16497 Location: Weinheim, Germany
Expire: 2021-03-09
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Posted: Thu Sep 13, 2018 9:08 am Post subject: |
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kds315* wrote:
Very very unique, but I like it! Very nice adaptation done! Congrats!! _________________ 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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kansalliskalaCafe
Joined: 23 Jul 2015 Posts: 602 Location: South Finland, countryside
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Posted: Thu Sep 13, 2018 9:15 am Post subject: |
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kansalliskalaCafe wrote:
y wrote: |
What a hallucinogenic effect. It's not very pleasing. |
agree, I usually use an 11" laptop but now connected a 23" display, almost dropped from my seat
cool mechanical job anyways!
_________________ (my normal account password still on another computer) |
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kds315*
Joined: 12 Mar 2008 Posts: 16497 Location: Weinheim, Germany
Expire: 2021-03-09
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Posted: Thu Sep 13, 2018 9:34 am Post subject: |
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kds315* wrote:
The effect comes from using a cine lens, which was designed for the 18x24mm film format an a FF camera, so also the blurry / distorted part of the picture gets visible which would normally get suppressed. _________________ 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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spleenone
Joined: 26 Dec 2009 Posts: 1130 Location: Slovakia
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Posted: Thu Sep 13, 2018 11:50 am Post subject: |
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spleenone wrote:
Well, that can be named as lens with character. Obviously swirl and like painted effect in out of focused area. Would be interested to see some portraits with that glass. _________________ Shoot on analog mainly with
Nikkor glass
then Pentacon6TL for squares
and Fujica GL690 in case of 6x9
Carpe diem! |
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blotafton
Joined: 08 Aug 2013 Posts: 1534 Location: Sweden
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Posted: Thu Sep 13, 2018 8:15 pm Post subject: Re: GOI Helios 75mm f/1.35 prototype cine lens adapted to EO |
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blotafton wrote:
Interesting lens! I also think it would do well with portraits. |
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Lexx
Joined: 15 Feb 2016 Posts: 75 Location: Russia
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Posted: Thu Sep 13, 2018 11:00 pm Post subject: |
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Lexx wrote:
I agree that the picture is unusual. On the other hand, it is generally good that this lens, in addition to the collector's value, can also be used for shooting given such a large aperture and age of almost 80 years.
Next time I will show portraits. |
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Pancolart
Joined: 04 Feb 2008 Posts: 3693 Location: Slovenia, EU
Expire: 2013-11-18
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Posted: Fri Sep 14, 2018 10:18 am Post subject: |
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Pancolart wrote:
Awesome, me wanna have it! _________________ ---------------------------------
The Peculiar Apparatus Of Victorian Steampunk Photography: 100+ Genuine Steampunk Camera Designs https://www.amazon.com/dp/B0B92829NS |
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Lexx
Joined: 15 Feb 2016 Posts: 75 Location: Russia
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Posted: Fri Sep 14, 2018 6:50 pm Post subject: |
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Lexx wrote:
Today published an article in the photo magazine about the lens, it has additional interesting information
www.dphotoworld.net/publ/photomuseum/goi_gelios_75_mm_f_1_35/7-1-0-921 |
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kds315*
Joined: 12 Mar 2008 Posts: 16497 Location: Weinheim, Germany
Expire: 2021-03-09
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Posted: Sat Sep 15, 2018 3:55 pm Post subject: |
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kds315* wrote:
Wonderful story Alexander, very nicely researched! _________________ 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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Lexx
Joined: 15 Feb 2016 Posts: 75 Location: Russia
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Posted: Sat Sep 15, 2018 8:05 pm Post subject: |
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Lexx wrote:
Thank you! I tried to find all possible information about the GOI cine lens and put it in the most interesting form.
One more shot on GOI Helios 75mm f/1.35 wide open:
.
Noticed at infinity the field of sharpness a bit with curvature, but all the same I like how this lens works. Several portrait photos will be tomorrow |
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Abbazz
Joined: 23 Jun 2007 Posts: 1098 Location: Jakarta
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Posted: Sun Sep 16, 2018 3:04 am Post subject: |
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Abbazz wrote:
Thank you for the information and congratulations on the adaptation to Canon EF-mount. The rendering looks interesting...
Lexx wrote: |
Noticed at infinity the field of sharpness a bit with curvature, but all the same I like how this lens works. |
Quite a bit of field curvature indeed!
Cheers!
Abbazz _________________ Il n'y a rien dans le monde qui n'ait son moment decisif, et le chef-d'oeuvre de la bonne conduite est de connaitre et de prendre ce moment. - Cardinal de Retz
The 6x9 Photography Online Resource:
http://artbig.com/ |
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Lexx
Joined: 15 Feb 2016 Posts: 75 Location: Russia
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Posted: Wed Sep 19, 2018 10:32 pm Post subject: |
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Lexx wrote:
Portraits on GOI Helios 75mm f/1.35 at Canon 6D, wide open
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woodrim
Joined: 14 Jan 2010 Posts: 4060 Location: Charleston
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Posted: Sat Sep 29, 2018 3:05 pm Post subject: |
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woodrim wrote:
I like most of the effect that I'm seeing. The image seems to bend from the center outward, but is there a soft spot in the center or just my eyes? I'd love to play with a lens like that. _________________ Regards,
Woodrim |
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Lexx
Joined: 15 Feb 2016 Posts: 75 Location: Russia
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Posted: Sat Sep 29, 2018 6:12 pm Post subject: |
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Lexx wrote:
woodrim wrote: |
I like most of the effect that I'm seeing. The image seems to bend from the center outward, but is there a soft spot in the center or just my eyes? I'd love to play with a lens like that. |
This lens draws often differently. He also has a variable depth of field from the center to the edge of the frame (like some ultra-fast lenses 50mm 0.95-1.0) and a different "pattern" across the field. The lens I have recently and still did not have time to make good portrait photos. But it is already known that he is capable of giving very unusual images. |
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Lexx
Joined: 15 Feb 2016 Posts: 75 Location: Russia
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Posted: Sun Oct 28, 2018 12:20 am Post subject: |
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Lexx wrote:
Some new portraits on cine lens GOI Helios 75mm f/1.35 (Leningrad 1939), wide open on FF camera:
Next time I will close the diaphragm to 2.0, in this case the sharpness increases significantly and even the plane of sharpness becomes almost completely smooth without curvature. |
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woodrim
Joined: 14 Jan 2010 Posts: 4060 Location: Charleston
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Posted: Sun Oct 28, 2018 2:09 am Post subject: |
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woodrim wrote:
Beautiful. _________________ Regards,
Woodrim |
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Lexx
Joined: 15 Feb 2016 Posts: 75 Location: Russia
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Posted: Sun Oct 28, 2018 6:22 pm Post subject: |
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Lexx wrote:
woodrim wrote: |
Beautiful. |
Thanks! |
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spleenone
Joined: 26 Dec 2009 Posts: 1130 Location: Slovakia
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Posted: Mon Oct 29, 2018 7:47 am Post subject: |
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spleenone wrote:
Really nice results. _________________ Shoot on analog mainly with
Nikkor glass
then Pentacon6TL for squares
and Fujica GL690 in case of 6x9
Carpe diem! |
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Lexx
Joined: 15 Feb 2016 Posts: 75 Location: Russia
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Posted: Mon Oct 29, 2018 3:19 pm Post subject: |
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Lexx wrote:
spleenone wrote: |
Really nice results. |
Thank! Very glad. Only the lens is quite complicated to use, you need to take into account the small curvature of the field of sharpness and accurately focus on, since in addition to the main field of sharpness, there is a second small field of sharpness in the center of the frame, but where the software effect is much less. In general, it is also very unusual.
And made another photo of the lens on the camera
And also manufacturer labeling
Also, GOI made some of the most high-aperture lenses such as the Iskra-3 7,2сm f/0.65 and a mirror-lens 20mm f/0.5, but they are unsuitable for shooting because of the very small rear focal length and range of coverage. |
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