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vilva
Joined: 04 Mar 2007 Posts: 785 Location: Porvoo/Borgå, Finland
Expire: 2015-05-27
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Posted: Sat Mar 01, 2008 4:59 pm Post subject: The CZJ Triotar 4/135 arrived |
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vilva wrote:
The Triotar arrived yesterday, and I had hoped I'd would be able to test it properly to-day, but the day has been totally cloudy - there might be some sunshine next Wednesday. However, I did a round with the Triotar mounted on my 350D, just to get at least some idea of the performance. The Triotar is a slender, rather long and heavy lens, about 630g, chrome plated brass, and it looks a little bit strange on the 350D:
The aperture is fully manual and rather stiff, there are 15 rounded blades, which form an almost perfect circle at all settings. Focusing is so stiff that it usually doesn't travel at all when changing the aperture setting, which makes life a little bit easier if one focuses at the full aperture and then wants to stop down. However, the day was rather dark so I shot at the full f/4 aperture and a bit noisy ISO400 -- the results wouldn't be very spectacular with any lens.
There are good news, mostly, and some bad news. The lens seems to be sharp, and the bokeh is pretty good. However, there is some CA but perhaps generally less than with most modern lenses, more, however, than with the original Cooke. Here are some test shots, first the obligatory one:
and a crop thereof exhibiting some CA, not bad, but it's there (I know, in this case I'm perhaps nitpicking) :
Another shot:
and a crop:
A bokeh example:
Another shot with CA:
The crop showing the harsh reality:
And a rather spectacular bokeh example, the Orthodox Cathedral in the background and OOF twigs breaking up the softness:
A different kind of CA in the rigging:
And a final bokeh example, the highlightsoften have a bright edge, but it is usually quite benign:
Finally, crops from f/8 bookshelf shots with the Cooke, the Triotar and the CZ Sonnar 2.8/135, shot in fluorescent light, which makes color reproduction comparisons rather pointless so I've adjusted the white-balance and also compensated for the extra transmission losses of the uncoated Cooke. The diameter of the circle is 10.5 mm.
The Cooke:
The Triotar:
The Sonnar:
At this level of sharpness, even very minimal focusing errors will affect the result, even at f/8.
Now I'm just waiting for some sunshine and a slightly warmer weather.
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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Riku
Joined: 23 May 2007 Posts: 1059 Location: Finland
Expire: 2017-04-30
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Posted: Sat Mar 01, 2008 5:26 pm Post subject: |
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Riku wrote:
Pleasent looking photos, but not very sharp. CA doesn't look bad. |
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fotomachi
Joined: 02 Feb 2008 Posts: 638 Location: Estados Unidos de las Esferas Ultraterrenales
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Posted: Sat Mar 01, 2008 5:42 pm Post subject: |
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fotomachi wrote:
Thanks for the shots, they're helpful information.
Never thought about painting your Canon in chrome? _________________ :::[ f o t o m a c h i . M X ]:::
:::[ F o T o M a C h i . C o M ]:::
:::[ M y . l e n s . c o l l e c t i o n ]:::
:::[ M a c h i g l a z k i . О п т и к . B l o g ]::: |
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Attila
Joined: 24 Feb 2007 Posts: 57865 Location: Hungary
Expire: 2025-11-18
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Posted: Sat Mar 01, 2008 5:42 pm Post subject: |
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Attila wrote:
Sunshine can be dramatically change I look forward those pictures. _________________ -------------------------------
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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poilu
Joined: 26 Aug 2007 Posts: 10472 Location: Greece
Expire: 2019-08-29
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Posted: Sat Mar 01, 2008 6:05 pm Post subject: |
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poilu wrote:
Nice piece of metal!
For wide open at 400 iso I find result pleasant and CA acceptable. _________________ T* |
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vilva
Joined: 04 Mar 2007 Posts: 785 Location: Porvoo/Borgå, Finland
Expire: 2015-05-27
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Posted: Sat Mar 01, 2008 6:59 pm Post subject: |
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vilva wrote:
Riku wrote: |
Pleasent looking photos, but not very sharp. |
In low contrast light like that to-day, with a very good lens and color neg film, enlarging a film area the size of the crop sensor, one would expect to get a sharp photo of about a maximum of 4" x 6" -- using a tripod, not a 135 mm lens at too slow a shutter speed for hands slightly trembling from cold I knew what to expect, I've done the same shooting with very good lenses getting rather disappointing results. This Triotar is a 58 years old, single coated lens, optically no match to modern MC lenses. I was more interested in the bokeh and I got my answers. I'm not searching for another CZ Sonnar or Leitz Elmarit-R, I'm searching for old lenses with a different signature.
Quote: |
CA doesn't look bad. |
Not too bad, but it is partly masked by noise and the low contrast. It may have to be taken into account when selecting the lens to use.
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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vilva
Joined: 04 Mar 2007 Posts: 785 Location: Porvoo/Borgå, Finland
Expire: 2015-05-27
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Posted: Sat Mar 01, 2008 7:00 pm Post subject: |
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vilva wrote:
Attila wrote: |
Sunshine can be dramatically change I look forward those pictures. |
So it can, I'm also looking forward
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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Richard_D
Joined: 21 Oct 2007 Posts: 2378 Location: Faversham Kent UK
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Posted: Sat Mar 01, 2008 7:18 pm Post subject: |
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Richard_D wrote:
Bokeh is certainly very pleasant. CA not bad. _________________ Richard
The interesting bit:
Nikkors: 20mm f2.8 AIS, 24mm f2.8 AIS, 28mm f2.8 AIS, 35mm f2 AIS, 50mm f1.4 AI, 50mm f1.48AI, 50m f2 AI,
55mm f3.5 AI'd, 105mm f4 AI, 135mm f2.8 AI'd, 135mm f3.5 AI'd, 200mm f4 AI'd .
Nikon E Series: 100mm f2.8 .
Soviet Nikon Mount: Zenitar 16mm f2.8, Arsat/arax/photex 85mm T&S f2.8 .
Other: Asahi Super Takumar 55 mm f2 (M42) ,Tamron 300mm f5.6 SP, Tamron 500mm f8 SP.
DSLR: Nikon D700. 35mm SLRsNikon FE, Pentax S1a.
TLR: Rolliecord II.
Sub-Minature: Pentax Auto 110, 18mm f2.8, 24mm f2.8, 50mm f2.8.
More to come... |
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