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Davidus
Joined: 07 Oct 2009 Posts: 190 Location: Prague, CZE
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Posted: Tue Dec 01, 2009 7:46 pm Post subject: |
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Davidus wrote:
Thanks.
I'll probably let it go. So any other recommendation in 300mm? But please resonable price. I'm not Rotchild
M42, but not only... _________________ Sony A7, Pentax P30t
MF: Pentax-M 35/2, Pentax-M 50/1.4, Pentax-M 135/3.5
AF: Sony 28-70/3.5-5.6 OSS
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luisalegria
Joined: 07 Mar 2008 Posts: 6602 Location: San Francisco, USA
Expire: 2018-01-18
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Posted: Tue Dec 01, 2009 7:53 pm Post subject: |
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luisalegria wrote:
There are many better 300mm
Some cheap ones -
Tokina automatic 5.5/300 sold as Soligor, Vivitar, Lentar, Hanimex, etc. Heavy but usually very good.
Tokina preset 5.5/300 sold as many different brands. Long minimum focus though.
Tamron Adaptamatic 5.6/300
Tamron preset 5.6/300 - Sold as Aetna Rokunar, Coligon, Soligor, etc. also.
Asahi Takumar 6.3/300 (maybe US $80+, so not that cheap)
There are also several made by Cosina and sold under many brands, including a Cosina-made 60-300 zoom that is very good.
All are probably much better than this Komura. _________________ I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
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Davidus
Joined: 07 Oct 2009 Posts: 190 Location: Prague, CZE
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Posted: Tue Dec 01, 2009 10:34 pm Post subject: |
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Davidus wrote:
Thank you.
So my max is 100 euros. I think it is enough for some decent lens. _________________ Sony A7, Pentax P30t
MF: Pentax-M 35/2, Pentax-M 50/1.4, Pentax-M 135/3.5
AF: Sony 28-70/3.5-5.6 OSS
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Arkku
Joined: 28 Feb 2007 Posts: 1416 Location: Helsinki, Finland
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Posted: Sun Dec 06, 2009 11:42 pm Post subject: |
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Arkku wrote:
I have the Komura 105mm f/2.5. Regarding the spelling, it reads “Sankyo Kohki” on the lens itself, so I guess that's the “official” transliteration. It's a funny lens; very thin, long, completely unusual filter thread sizes (two of them; the original hood mounts with a step-up ring), plenty of aperture blades.
In practice I find that it's somewhat soft wide open, but with a relatively pleasant soft glow. Bokeh can be very smooth, especially wide open, but it's somewhat swirly.
A couple of bokeh samples (wide open or thereabouts):
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Attila
Joined: 24 Feb 2007 Posts: 57865 Location: Hungary
Expire: 2025-11-18
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Posted: Sun Dec 06, 2009 11:53 pm Post subject: |
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Attila wrote:
Looks a very nice lens to me. I had two of them 135mm f.5 and 200mm f4 none of them was sharpness or bokeh champion , but their color was better than most of my lenses. Congrats for this rare and nice piece! _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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Arkku
Joined: 28 Feb 2007 Posts: 1416 Location: Helsinki, Finland
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Posted: Mon Dec 07, 2009 11:30 am Post subject: |
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Arkku wrote:
Relayer wrote: |
nice, thank you. can you compare performance of this lens with Nikkor/Rokkor/Spiratone/Tamron 2.5/105 ? its very interesting for me, because I love and collect 100mm lenses :) |
The only other ~100mm lens I have is the MC Kaleinar-5N. The Kaleinar is sharper, especially wide open (though so are most other lenses), but less “smooth”. The coatings in my Kaleinar are damaged, which is probably why both are low in contrast. |
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Olivier
Joined: 18 Feb 2009 Posts: 5078 Location: France
Expire: 2015-08-06
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Posted: Mon Dec 07, 2009 10:17 pm Post subject: |
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Olivier wrote:
Davidus, you should consider the Tair-3 4.5/300 very closely.
Some go for cheap. _________________ Olivier - Moderator
Dslr : Olympus Pen E-P2 - Fujifilm X-Pro2 - Canon 5D MkII.
SLr and MF lenses : for feedback and helping people, cameras and lenses I own : full list here http://forum.mflenses.com/viewtopic,p,1442740.html#1442740 |
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hinnerker
Joined: 17 Aug 2009 Posts: 929 Location: Germany near Kiel
Expire: 2015-08-09
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Posted: Mon Dec 07, 2009 10:37 pm Post subject: |
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hinnerker wrote:
Olivier wrote: |
Davidus, you should consider the Tair-3 4.5/300 very closely.
Some go for cheap. |
#1
Cheers
Henry _________________ some light-painting lens stuff..
... and an EOS 5D MKII
www.digicamclub.de |
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Sculptur
Joined: 08 Feb 2010 Posts: 29 Location: Amsterdam
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Posted: Wed Jun 23, 2010 3:32 pm Post subject: |
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Sculptur wrote:
[quote="Arkku"]I have the Komura 105mm f/2.5. Regarding the spelling, it reads “Sankyo Kohki” on the lens itself, so I guess that's the “official” transliteration. It's a funny lens; very thin, long, completely unusual filter thread sizes (two of them; the original hood mounts with a step-up ring), plenty of aperture blades.
In practice I find that it's somewhat soft wide open, but with a relatively pleasant soft glow. Bokeh can be very smooth, especially wide open, but it's somewhat swirly.
Somewhat late reply, I just ordered the same 105/2.5 lens for 27 pounds.
It looks like new with leather box and all.
Not so long ago I bought a Komura 135/3.5 in Leica mount with 12 blades.
It is quiet nice, not razorsharp but great bokeh.
Here are some samples.
In nr 3 you can see the starshaped lenblades.
_________________ Panasonic DMC-G1
Lumix G-Vario 14-45/3.5 -5.6, Lumix G Vario 45-200/4-5.6
Zuiko 40 - 150/3.5 - 4.5 , Zuiko 35/3.5, Zuiko 9-18/4-5.6, Sigma 24/1.8 (macro)
Aus Jena: 50/2.8 (Exakta mount)
Beroflex: 500/8 (M42 mount)
Canon FD: 24/2.8, 28/2.8, 28/3.5, 35/2(2x),35/2.8, 50/1.4, 50/1.8, 50 /3.5 Macro, L 85/1.2, 100/4 Macro, 135/2, 200/4 Macro, 200/2.8, 300/4
Carl Zeiss: Planar 50/1.7 (C/Y mount)
Carl Zeiss Jena: Tessar 50/2.8 (Exakta mount), Biotar 58/2 (Exakta mount), Biometar 80/2.8 (P6 mount), Sonnar 135/3.5 (M42 mount), Sonnar (zebra) 180/2.8 (P6 mount)
Cimko: 28/2.8 (M42 mount)
C-Mount: Cosmicar 12,5 /1.4 (C mount), Cosmicar 8/1.4 (C mount)
Cosina: Cosinon 50/1.8 (M42 mount)
Enna: Tele-Ennalyt 135/3.5 (M42 mount)
Isco- Göttingen: Berolina-Westromat 35/2.8 (Exakta mount), Isconar 50/2.8(Exakta mount),135/3.5 (Exakta mount),
Isconar 100/4 (Exakta mount)
Komura:135/3.5 (Leica Mount), 105/2.5 (M42 mount)
Konica Hexanon AR: 28/3.5, 40/1.8, 50/1.7, 50/1.4, 135/3.5, 135/3.2, 200/3.5
Leica R: Elmarit 90 /2.8, Elmarit 135 /2.8, APO Telyt 180/3.4
Meyer: Lydith 30 /3.5 (Exakta mount), Domiplan 50/2.8, Orestor (zebra)100 /2.8 (M42 mount), Orestor (zebra) 135/2.8 (M42 mount), Primotar 180/:3.5, Orestor (zebra) 200/4 (M42 mount), Orestor 300/(M42 mount), Telemegor 300/4.5
Minolta: Rokkor 40/2.8,50/1.7 (MD Mount)
Nikkon: Nikkor-P.C 105/2.5, Nikkor-H 50/2
Novoflex: Macro bellow (Canon FD mount, Macro 60/4 (Canon FD mount)
Olympus OM Zuiko: 24/2.8,28/2.8, 35/2.8, 50/1.8, 50/1.4, 100/2.8, 135/3.5, 200/4, 300/4.5
Pentacon: 50/1.8 (M42 mount)
Revuenon: Special 35/2.8 (M42 mount), 55/1.2 (Pentax K mount)
Robotar: 35/2.8
Russian: Volna-3 85/2.8, Jupiter 9 85/2 (M42 mount), Industar-61 50/2.8 (M42 mount)
Schneider-Kreuznach: Xenar 50/2.8 (Edixa reflex) (M42 mount)
A.Schacht Ulm: Travenar R 90/2.8, Travenar R 135/3.5 (Exakta mount)
Seimar: 135/2.8 (Exakta mount)
Soligor: C/D 28/2, C/D 135/2 (FD Mount)
Tokina: Mirrorlens 500/8 (Canon FD mount), Macro AT-X Pro 90/2.5 (Canon FD mount)
Topcon: Auto Topcor RE 35/2.8 (M42 mount), Topcor RE 13.5cm/3.5
Vivitar: Series 1 VMC Macro Zoom 70-210/3.5 (OM mount), Series 1 28-105/2.8-3.8 (Canon FD mount), Vivitar Auto Macro 55/2.8 (Canon FD mount), 28/2.8(Canon FD mount), 28/2
Voigtländer: Super Wide Heliar 15/4.5 en Nokton 50/1.5
Yashica: DSB 28/2.8, DSB 50/2 |
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D1N0
Joined: 07 Aug 2012 Posts: 2532
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Posted: Sat Jan 15, 2022 2:38 pm Post subject: |
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D1N0 wrote:
The Komura 200mm F4.5 (Sankyo Kohki Japan) seems to be a triplet. Sharpness is nothing to really write home about but probably can be improved when shooting in good lighting. The weather is drab today so ISO 2500.
Faded gold by The lens profile, on Flickr
I sharpened this one a bit, also a slight crop
Hayfeverkeh by The lens profile, on Flickr _________________ pentaxian |
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luisalegria
Joined: 07 Mar 2008 Posts: 6602 Location: San Francisco, USA
Expire: 2018-01-18
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Posted: Sat Jan 15, 2022 4:20 pm Post subject: |
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luisalegria wrote:
I also found the Komura 200mm F4.5 SLR lens to be rather a weak item in the Komura range.
Not as bad as the 300 f/5 but IMHO its just for collectors.
There is a very different Komura 200/4.5 made for Leica screw mount, with rangefinder coupling (a bit famous for being the longest rangefinder coupled lens), that is actually rather better. Its not a triplet, as far as I can tell, I only partially disassembled the optical block but it seems to have a cemented pair in there.
Anyway, its no world beater but not the same and not as bad.
http://forum.mflenses.com/komura-200-4-5-leica-screw-mount-on-mini-bellows-t11128,highlight,%2Bkomura.html _________________ I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
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D1N0
Joined: 07 Aug 2012 Posts: 2532
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Posted: Sat Jan 15, 2022 4:52 pm Post subject: |
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D1N0 wrote:
It has a grand total of 16 aperture blades though.
16 by The lens profile, on Flickr _________________ pentaxian |
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martinsmith99
Joined: 31 Aug 2008 Posts: 6950 Location: S Glos, UK
Expire: 2013-11-18
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Posted: Mon Jan 17, 2022 10:53 am Post subject: |
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martinsmith99 wrote:
Do the RF & SLR lenses both have this many aperture blades?
Some of those old samples taken above look very good. Surprised Attila wasn't blown away. _________________ Casual attendance these days |
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D1N0
Joined: 07 Aug 2012 Posts: 2532
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Posted: Mon Jan 17, 2022 8:07 pm Post subject: |
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D1N0 wrote:
Got this from an Ebay post of the RF model. (Looks a bit different from the slr model, no preset aperture (or maybe a hidden one like with Meyer Optik Lenses) but same blade count. https://www.ebay.com/itm/114930232021?
Rangefinder version is much more expensive than the SLR version, but Ebay prices so who knows... Probably a different optical formula from the slr lens. _________________ pentaxian |
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