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JohnBar
Joined: 21 Jun 2012 Posts: 581 Location: Liverpool
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Posted: Mon Jan 26, 2015 1:08 pm Post subject: SK Radionar 2.9/75mm on NEX |
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JohnBar wrote:
I did a quick test with a £10 Korelle SK Radionar 2.9/75mm @ F2.9 see exif.
Focus is on barcode, so the battery is slightly oof.
I think its pretty good, the low contrast is because the lens is uncoated. Not bad for a lens made in 1936....
_________________ Rectilux 3FF Series single focus anamorphic attachments
http://www.transferconvert.co.uk/cinemania/rectilux-3ff.html
Regular News on https://www.facebook.com/pages/Rectilux/704770636267200 |
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iangreenhalgh1
Joined: 18 Mar 2011 Posts: 15685
Expire: 2014-01-07
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Posted: Mon Jan 26, 2015 6:26 pm Post subject: |
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iangreenhalgh1 wrote:
Nice. The Radionar is one of the best triplets. I have a 4.5/105 Radionar that I use on my Century Graphic 6x9. I also have a Xenar 3.5/105 and it's a toss-up which is the better lens, the Radionar is very sharp and has a very nice character, the Xenar is perhaps sharper towards the edges. _________________ I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
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JohnBar
Joined: 21 Jun 2012 Posts: 581 Location: Liverpool
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Posted: Mon Jan 26, 2015 7:21 pm Post subject: |
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JohnBar wrote:
Thanks Ian , I know we both share a passion for Schneider glass. The "master tailor"
I was drawn to this lens after seeing this flickr set (not mine). The tonal aspects got me hooked.
https://www.flickr.com/photos/86956792@N06/sets/72157636496915253/
Then one day found myself staring at this
http://www.ebay.co.uk/itm/SCHNEIDER-KREUZNACH-7-5cm-f2-9-RADIONAR-LENS-/141532815694?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2047675.l2557&nma=true&si=GePcwjZho0nJ2RXogfGNM5yk%252FsQ%253D&orig_cvip=true&rt=nc
mounting was a breeze, M42 tube and some plumbers tape, job done _________________ Rectilux 3FF Series single focus anamorphic attachments
http://www.transferconvert.co.uk/cinemania/rectilux-3ff.html
Regular News on https://www.facebook.com/pages/Rectilux/704770636267200 |
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Layer-cake
Joined: 18 Mar 2013 Posts: 560 Location: Cape Town
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Posted: Mon Jan 26, 2015 7:53 pm Post subject: |
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Layer-cake wrote:
could I ask you to try some some shots where you focus on the OOF areas, as its a triplet I want to see if you get the onion rings on the highlights they can produce? |
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JohnBar
Joined: 21 Jun 2012 Posts: 581 Location: Liverpool
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Posted: Thu Jan 29, 2015 9:08 am Post subject: |
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JohnBar wrote:
Layer-cake wrote: |
could I ask you to try some some shots where you focus on the OOF areas, as its a triplet I want to see if you get the onion rings on the highlights they can produce? |
Is this what you meant?, I have no onions just dust
_________________ Rectilux 3FF Series single focus anamorphic attachments
http://www.transferconvert.co.uk/cinemania/rectilux-3ff.html
Regular News on https://www.facebook.com/pages/Rectilux/704770636267200 |
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kds315*
Joined: 12 Mar 2008 Posts: 16497 Location: Weinheim, Germany
Expire: 2021-03-09
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Posted: Thu Jan 29, 2015 10:06 am Post subject: |
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kds315* wrote:
Nope, no onion-rings from that lens type _________________ 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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iangreenhalgh1
Joined: 18 Mar 2011 Posts: 15685
Expire: 2014-01-07
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Posted: Thu Jan 29, 2015 4:25 pm Post subject: |
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iangreenhalgh1 wrote:
JohnBar wrote: |
Thanks Ian , I know we both share a passion for Schneider glass. The "master tailor" |
Indeed, I have never had a single S-K lens dissappoint me so far.
JohnBar wrote: |
The tonal aspects got me hooked. |
Same for me in that it was the tonal rendering when used to shoot BW film that made me appreciate uncoated lenses - there is a definite difference to a coated lens and to my eyes, for many subjects, it can be more pleasing. _________________ I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
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Layer-cake
Joined: 18 Mar 2013 Posts: 560 Location: Cape Town
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Posted: Thu Jan 29, 2015 4:33 pm Post subject: |
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Layer-cake wrote:
indeed it is and Klaus is correct no onion rings. thanks for checking for me though.
I've checked a couple of lenses out for this, but very few have pronounced onion rings, was hoping this would as it is a triplet. |
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calvin83
Joined: 12 Apr 2009 Posts: 7547 Location: Hong Kong
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Posted: Thu Jan 29, 2015 4:43 pm Post subject: |
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calvin83 wrote:
Layer-cake wrote: |
indeed it is and Klaus is correct no onion rings. thanks for checking for me though.
I've checked a couple of lenses out for this, but very few have pronounced onion rings, was hoping this would as it is a triplet. |
If the onion rings is not at the back, you might be able to find them at the front unless the lens is perfectly corrected for spherical aberration. _________________ https://lensfever.com/
https://www.instagram.com/_lens_fever/
The best lens is the one you have with you. |
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Layer-cake
Joined: 18 Mar 2013 Posts: 560 Location: Cape Town
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Posted: Sat Jan 31, 2015 1:52 pm Post subject: |
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Layer-cake wrote:
calvin83 wrote: |
Layer-cake wrote: |
indeed it is and Klaus is correct no onion rings. thanks for checking for me though.
I've checked a couple of lenses out for this, but very few have pronounced onion rings, was hoping this would as it is a triplet. |
If the onion rings is not at the back, you might be able to find them at the front unless the lens is perfectly corrected for spherical aberration |
do you mean in the oof areas in front of the main subject? I don't think I've ever taken the time to look for the highlights in that section.
the whole concept of spherical aberration and their relationship of the onion rings is a bit over my head, I have tried reading up on it but it hasn't clarified to me what I should be looking out for in lens schemes |
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calvin83
Joined: 12 Apr 2009 Posts: 7547 Location: Hong Kong
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Posted: Sat Jan 31, 2015 2:15 pm Post subject: |
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calvin83 wrote:
Layer-cake wrote: |
calvin83 wrote: |
Layer-cake wrote: |
indeed it is and Klaus is correct no onion rings. thanks for checking for me though.
I've checked a couple of lenses out for this, but very few have pronounced onion rings, was hoping this would as it is a triplet. |
If the onion rings is not at the back, you might be able to find them at the front unless the lens is perfectly corrected for spherical aberration |
do you mean in the oof areas in front of the main subject? I don't think I've ever taken the time to look for the highlights in that section.
the whole concept of spherical aberration and their relationship of the onion rings is a bit over my head, I have tried reading up on it but it hasn't clarified to me what I should be looking out for in lens schemes |
Yes. A simple lens scheme will not tell you if a lens is over-corrected or not. You could check the follow site to learn more how the bokeh affected by lens design.
http://jtra.cz/stuff/essays/bokeh/#what_affects_bokeh_shape _________________ https://lensfever.com/
https://www.instagram.com/_lens_fever/
The best lens is the one you have with you. |
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Layer-cake
Joined: 18 Mar 2013 Posts: 560 Location: Cape Town
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Posted: Sat Jan 31, 2015 3:14 pm Post subject: |
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Layer-cake wrote:
many thanks for that, the article puts quite a few things into context for me! I will need to read it again;) |
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