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vilva
Joined: 04 Mar 2007
Posts: 785
Location: Porvoo/Borgå, Finland
Expire: 2015-05-27
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 Posted: Mon Apr 13, 2009 2:31 pm Post subject: The IQ of a 1932 S-K Xenar 4.5/75 |
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vilva wrote:
An adjustable close-up ring is short enough to provide a reasonable focusing range for a front cell focusing 75mm Xenar at most front cell settings. Here is my 350D with the Xenar temporarily attached with Blu-Tack to a reversing ring for mounting on the adjustable close-up ring:
With the front cell set at infinity, the nearest focus is about 60cm, and at the other end of the scale, infinity focus is possible with the front cell set at 1.5m.
To give an idea of the IQ, I took three close-ups with the front cell set at infinity, which is probably the sharpest setting, i.e., has the least amount of spherical aberration. The photos were shot at ISO100 using a non-optimal lens shade, a tripod and a remote control, just minimal sharpening before conversion to JPEG, no contrast adjustments, crops from the JPEGs.
First a whole frame:
and then two 100% crops from it:
Another frame:
and two crops:
A third frame:
and a crop (note the dust in the mouth and on the upper lip):
Veijo
_________________
Mainly Schneider-Kreuznach Radionar (1938), VPK Meniscus Achromat (1915), TTH Cooke Anastigmat (1917), TTH Cooke Aviar (1937), Goerz Dopp-Anastigmat III Dagor (1912), Voigländer Heliar (1928) or Aldis Uno Series III (1903 design) mounted on EOS 5D or EOS 350D |
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arhi_tectu1
Joined: 09 Feb 2009
Posts: 315
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| Posted: Mon Apr 13, 2009 3:43 pm Post subject: |
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arhi_tectu1 wrote:
wow just mind blowing
i have no knowledge about this kind of lenses to say more
but they are just great considering the age of the lens (i m wondering how hard is it to make such a lens work on a digital cemara )
i m really impressed
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MF- CZJ 180/2.8@CZJ 50/2.8@Contax CZ 50/1.4@Contax CZ 135/2.8@Nikkor P 180/2.8@Helios 44@Mir 37/2.8@Industar 50/3.5@Pentacon 28/2.8@Pentacon 300/4
AF- Canon 70-200/4L@Canon 60/2.8Macro@Tokina 11-16/2.8
Camera Canon 40D |
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PaulC
Joined: 23 Dec 2008
Posts: 2318
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| Posted: Mon Apr 13, 2009 4:27 pm Post subject: |
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PaulC wrote:
That's a Very nice lens. The hallmark of these older lenses seems to be low contrast rather than poor resolution. I've noticed it with lots of them. It's the coatings that improve contrast, I believe.
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View or buy my photos at:
http://shutterstock.com/g/paulcowan |
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A G Photography
Joined: 11 May 2008
Posts: 1480
Location: Bologna - Italy
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| Posted: Mon Apr 13, 2009 4:32 pm Post subject: |
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A G Photography wrote:
Think also that they were used for B&W film, and contrast were made by the photographer in the darkroom and printing on photo paper. The less contrast from start, the more choices you gave to the photographer.
Btw, it's true nowadays too. I found out that starting from a low contrast image you have a lot of room to play with digital post production, while the output of some lenses is sometime s too much "in your face" and need to be used for carefully selected occasions.
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Alessandro
My Photography Website
My Blog about Photography and Italian Cuisine
My Photostream on Flickr
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DSLR: Nikon d80, Olympus e410
SLR: Chinon CX, Fujica ST605n, Nikon f601, Pentacon FM, Pentax Spotmatic SPII, Praktica FX, Praktica FX2, Voigtlander VST1, Yashica FX-3, Zeiss Contaflex
RF: Altissa Altix, Zorki Ie, Kiev 4b
Medium Format: Pentacon Six TL, Zeiss Ikonta 520/2, Mockba 4, Voigtlander Bessa I, Agfa Isolette II, Agfa Isola
Large Format: Cambo SC 4x5, Rodenstock Sinaron 150/5.6, Rodenstock Rodagon 150/5.6, Schneider Kreuznach Symmar 180/5.6
Lenses
Nikkors: 28/3.5 AIS, 35/2, 50/1.8, 50/2 H, Micro 55/3.5, Micro 60/2.8, 85/1.8, 135/3.5 AI, 200/4 NAI, 18-55/3.5-5.6, 28-80/3.5-5.6, 55-200/4-5.6
CY: Distagon 28/2.8, Planar 50/1.4, Yashika 50/1.7, Sonnar 135/2.8
CZJ m42-Exakta: Flektogon 20/4, Flektogon 35/2.8, Tessar 40/4.5, Tessar 50/2.8, Pancolar 50/1.8, Pancolar 50/2, Biotar 58/2, Biotar 75/1.5, Tessar 80/2.8, Sonnar 135/3.5, Sonnar 135/4, Triotar 135/4
CZJ P6: Flektogon 50/4, Flektogon 65/2.8, Biometar 80/2.8, Biometar 120/2.8, Sonnar 180/2.8
Meyer-Pentacon: Orestegon 29/2.8, Pentacon 29/2.8, Lydith 30/3.5, Primagon 35/4.5, Helioplan 40/4.5, Domiplan 50/2.8, Primotar 50/3.5, Oreston 50/1.8, Primoplan 58/1.9, Orestor 100/2.8, Trioplan 100/2.8, Helioplan 135/4.5, Orestor 135/2.8, Pentacon 135/2.8, Primotar 135/3.5, Primotar 180/3.5, Telemegor 180/5.5, Orestegor 200/4, Pentacon 200/4, Orestegor 300/4, Telemegor 300/4.5, Telemegor 400/5.5
Schneider-Kreuznach: Curtagon 28/4, Curtagon 35/2.8, Xenon 50/1.9, Xenar 50/2.8, Tele Xenar 135/3.5, Tele Xenar 200/4
Russians: Arsat Zodiak 30/3.5, Mir-I 37/2.8, Volna-9 50/2.8, Industar-50 50/3.5, Industar-61 50/2.8, Helios 44 58/2, Helios 44-2 58/2, Helios 44-M-4 58/2, Volna-3 80/2.8, Helios 40 85/1.5, Jupiter 9 85/2, Jupiter 11 135/4
Others: Chinon-Tomioka 55/1.4, Helios 28/2.8, Isco Iscotar 50/2.8, Konica Hexanon 40/1.8, Ludwig Meritar 50/2.9, Schacht Travegon 35/3.5, Schacht Travenon 135/4.5, Sekor 55/1.8, Sigma MF 28/2.8, S-Takumar, 28/3.5, S-Takumar 50/1.4, S-Takumar 55/1.8, S-Takumar 55/2, Steinheil Quinar 135/2.8, Steinheil Culminar 135/4.5, Vivitar 135/2.8, Voigtlander Ultron 50/1.8, Yashica Yashinon DX 50/1.4, Zuiko MC Auto-W 28/2.8
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estudleon
Joined: 15 May 2008
Posts: 3754
Location: Argentina
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| Posted: Mon Apr 13, 2009 4:37 pm Post subject: |
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estudleon wrote:
| PaulC wrote: |
| That's a Very nice lens. The hallmark of these older lenses seems to be low contrast rather than poor resolution. I've noticed it with lots of them. It's the coatings that improve contrast, I believe. |
I agree.
And one more thing, with an old lens with good resolution you will increase contrast in pp (if you like pp way)
But not viceversa, a newer more contrast lens with less resolution don't improve this in PP way like the contrast can be improved (in the same quantity)
Am I right?
_________________
Konica 2,8/100
CZJ: 4/20, 2,4/35, 1,8/50 aus jena, 3,5/135MC, Pentacon 1,8/50
Pentax S-M-C-1,4/50
Helios 44-3
Mamiya 2,8/135
Misc. : jupiter 9
Stuff used:
A) SRL
Alpa 10 D - kern macro Switar 1,9/50 -black, Kilffit apochromat 2/100.
Asahi pentax spotmatic super takumar 1,4/50
Contaflex super B tessar 2,8/50 Pro-tessar 115
Leica R3 electronic summicron 2/50 elmarit 2,8/35
Konica Autoreflex 3 (2 black and chrome one), TC, T4. 2,8/24, 3,5/28 not MC and MC, 1,8/40, 1,4/50, 1,7/50 MC and not MC, 1,8/85, 3,2/135, 3,5/135, 4/200
Minolta XG9 2,8/35, 2/45, 3,5/135
Nikkormat FTn 1,4/50, 2,8/135
Fujica ST 801, 605, 705n. 3,5/19, 1,4/50, 1,8/55, 4/85, 3,5/135.
Praktica MTL 5 and a lot of M42 lenses.
Voigtlander. Bessamatic m, bessamatix de luxe, bessamatic cs, ultramatic and ultramatic cs.
Skoparex 3,5/35, skopagon 2/40, skopar 2,8/50, skopar X 2,8/50, super lanthar (out of catalogue) 2,8/50, dinarex 3,4/90, dinarex 4,8/100, super dinarex 4/135, super dinarex 4/200, zoomar 2,8/36-83, portrait lens 0, 1 and 2. Curtagon 4/28 and 2,8/35
Canon AV1, 1,8/50
Rolleiflex SL35 and SL35 E. 2,8/35 angulon, 2,8/35 distagon, 1,4/55 rolleinar, 1,8/50 planar, 4/135 tessar, 2,8/135 rolleinar, x2 rollei, M42 to rollei adap.
Etc.
RF
Yashica Minister III
Voightlander Vito, vitomatic I, Vito C, etc.
Leica M. M2, M3 (d.s.) and M4. Schenider 3,4/21, 2/35 summaron 2,8/35 (with eyes). Summicron 2/35 (8 elements with eyes), 2/35 chrome, 2/35 black, 1,4/35 pre asph and aspheric - old -, 2/40 summicron, 2,8/50 elmar, 2/50 7 elements, 2/50 DR, 2/50 - minolta version, 1,4/50 summilux 1966 version, 1,4/75 summilux, 2/90 large version, 2/90 reduced version of 1987, 2,8/90 elmarit large version, 4/135 elmar. |
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luisalegria
Joined: 07 Mar 2008
Posts: 6602
Location: San Francisco, USA
Expire: 2018-01-18
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| Posted: Mon Apr 13, 2009 5:03 pm Post subject: |
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luisalegria wrote:
True.
The lack of tonal range in DSLR sensors vs film seems to make the contrast problem worse.
_________________
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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karabud
Joined: 11 Apr 2009
Posts: 843
Location: Lodz
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| Posted: Mon Apr 13, 2009 5:41 pm Post subject: |
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karabud wrote:
Very, very nice!Maby this lens is like old wine ? |
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