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Oldhand
Joined: 01 Apr 2013 Posts: 5999 Location: Mid North Coast NSW - Australia
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Posted: Thu Mar 26, 2015 5:30 am Post subject: Question Regarding CZJ Pancolar 2/50 and 1.8/50 |
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Oldhand wrote:
Are these essentially the same lens in the manner of Takumar 2/55 and 1.8/55?
I have googled to no avail.
Thanks
OH |
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Aanything
Joined: 27 Aug 2011 Posts: 2187 Location: Piacenza, Italy
Expire: 2014-05-30
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Posted: Thu Mar 26, 2015 6:22 am Post subject: |
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Aanything wrote:
I have both and, despite not having done a side by side comparison, I'd say they have some differences in rendering, with the f2 version showing some character in common with the earlier biotar.
Also, IIRC, the f1.8 version is a later model, not a more expensive alternative - as in the case of the takumars - so I suspect something in the design has changed between the two version.
BTW, i like the 2/50 very much. _________________ C&C and editing of my pics are always welcome
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mo
Joined: 27 Aug 2009 Posts: 8979 Location: Australia
Expire: 2016-07-30
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Posted: Thu Mar 26, 2015 6:41 am Post subject: |
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mo wrote:
I prefer the 2/50 just for the styling,I don't know if they are the same as the 1.8 . I have both the pentax lens and did try them out, side by side for comparision...not much difference, but mine was not a clinical test _________________ Moira, Moderator
Fuji XE-1,Pentax K-01,Panasonic G1,Panasonic G5,Pentax MX
Ricoh Singlex TLS,KR-5,KR-5Super,XR-10
Lenses
Auto Rikenon's 55/1.4, 1.8, 2.8... 50/1.7 Takumar 2/58 Preset Takumar 2.8/105 Auto Takumar 2.2/55, 3.5/35 Super Takumar 1.8/55...Macro Takumar F4/50... CZJ Biotar ALU M42 2/58 CZJ Tessar ALU M42 2.8/50
CZJ DDR Flektogon Zebra M42 2.8/35 CZJ Pancolar M42 2/50 CZJ Pancolar Exakta 2/50
Auto Mamiya/Sekor 1.8/55 ...Auto Mamiya/Sekor 2/50 Auto Mamiya/Sekor 2.8/50 Auto Mamiya/Sekor 200/3.5 Tamron SP500/8 Tamron SP350/5.6 Tamron SP90/2.5
Primoplan 1.9/58 Primagon 4.5/35 Telemegor 5.5/150 Angenieux 3.5/28 Angenieux 3,5/135 Y 2
Canon FL 58/1.2,Canon FL85/1.8,Canon FL 100/3.5,Canon SSC 2.8/100 ,Konica AR 100/2.8, Nikkor P 105/2.5
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iangreenhalgh1
Joined: 18 Mar 2011 Posts: 15679
Expire: 2014-01-07
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Posted: Thu Mar 26, 2015 7:03 am Post subject: |
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iangreenhalgh1 wrote:
As Anything says, the 2/50 is closer in rendering to the Biotar. This is because it is less highly corrected. If you have the Biotar 2/58, Pancolar 2/50 and Pancolar 1.8/50 there is a clear development in the level of corrections noticeable. They are all roughly equal in sharpness but are progressively better corrected, most noticeably in spherical aberration and coma. This is why the Biotar has the swirly bokeh, the 2/50 has just a little swirl and in the 1.8/50 the swirl is gone - increasingly better correction of spherical aberration.
This increasing level of corrections is due to the advent of computers. The Biotar was designed in the 1930s, before electronic computing. The Pancolars are from the 50s and 60s respectively and considering that computing wasn't available until the late 1950s, I wouldn't be surprised if the 1.8/50 is a redesign of the 2/50 using the newly available computers to refine the level of corrections. _________________ 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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Xpres
Joined: 11 Dec 2007 Posts: 964 Location: UK
Expire: 2014-10-28
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Posted: Thu Mar 26, 2015 10:13 am Post subject: |
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Xpres wrote:
I haven't used it in a long time, but I remember the 50/1.8 pancolar having some 'swirl' as one of its characteristics. Not as much as a Biotar, but there nonetheless. _________________ Film... and sometimes SD14, 5D2 and some other suff! |
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Oldhand
Joined: 01 Apr 2013 Posts: 5999 Location: Mid North Coast NSW - Australia
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Posted: Thu Mar 26, 2015 11:50 am Post subject: |
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Oldhand wrote:
Thanks everyone for the replies.
Google has finally been my friend and I have found some information based on some published schematics:
Pancolar 2/50:
http://www.pbase.com/kkawakami/image/108259869
Pancolar 1.8/50 Ist edition:
http://www.pbase.com/kkawakami/image/108259870
Pancolar 1.8/50 2nd edition:
http://www.pbase.com/kkawakami/image/108259872
This would seem to bear out the fact that the lenses are basically the same six element design, but tweaked from generation to generation.
Cheers
OH |
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