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Langstrum
Joined: 16 Feb 2014
Posts: 351
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 Posted: Fri May 15, 2015 8:01 am Post subject: Cosina L Aspherical 15mm f/4.5 (L39/M39 mount) |
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Langstrum wrote:
My new acquirement! I found this lens on a Korean site but I had zero information, then I figured out it's the original version of the Voigtlander Heliar 15mm f/4.5, before Cosina bought Voigtlander and changed the name of the lens. How rare is it? I found only few copies appeared on the Internet, ranging from $300 to $1000 (I bought it for $280). The build, appearance, quality of this lens is amazing, it's much better than my SEL16 f/2.8 and very it looks very tiny, shining on my NEX-6. I did a quick comparison to SEL16 on NEX-6 at f/4.5 and the Cosina won in every aspects. I wonder how much difference between this lens and the Voigtlander Heliar I 
_________________
Camera: Sony A7 mark III, A6300
AF Lenses:
Canon EF 50/1.8; EF 200/2.8 L, EF 200/1.8 L, EF 300/4 L Sony E mount SEL 50/1.8 OSS, SEL 16/2.8 Fuji X mount XF 35/1.4 R
MF Lenses: Peleng MC 8/3.5, 17/2.8 Samyang 14/T3.1, 35/T1.5, TS 24/3.5 ED, 85/T1.5, Polar 85/1.4 Auto Revuenon 28/2.8; MC 50/1.4 Vega11U 50/2.8 Carl Zeiss Tessar 50/2.8 (exakta mount) Auto Chinon 50/1.9 Zenitar ME1 50/1.7 Sears Auto Sears 55/1.4; Sears 135/2.8 Auto Yashinon DX 50/1.4; Tomioka 50/1.2 SMC Pentax 50/1.7; 50/1.4 Canon FD 50/1.4 S.S.C; 55/1.2 S.S.C; FD 50/1.2 L; FD 85/1.2 L; 85/1.2 S.S.C Aspherical; FD 80-200/4 L 300/2.8 S.S.C Fluorite FD 300/2.8 L FD 200/1.8 LCosina-S 50/1.2 Helios Helios 44 Chrome f/22, 44-2, 44-3, 44M-4, 44M-7 (58/2), Helios-40 85/1.5 Jupiter Jupiter-9 85/2; Jupiter-37A 135/3.5; Jupiter-21M 200/4 Nikon Ai 105/2.5 Tairs-3S 300/4.5
Voigtlander 15/4.5 Aspherical; Ultron 35/1.7
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tb_a
Joined: 26 Jan 2010
Posts: 3678
Location: Austria
Expire: 2019-08-28
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| Posted: Fri May 15, 2015 8:44 am Post subject: Re: Cosina L Aspherical 15mm f/4.5 (L39/M39 mount) |
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tb_a wrote:
| Langstrum wrote: |
My new acquirement! I found this lens on a Korean site but I had zero information, then I figured out it's the original version of the Voigtlander Heliar 15mm f/4.5, before Cosina bought Voigtlander and changed the name of the lens. How rare is it? I found only few copies appeared on the Internet, ranging from $300 to $1000 (I bought it for $280). The build, appearance, quality of this lens is amazing, it's much better than my SEL16 f/2.8 and very it looks very tiny, shining on my NEX-6. I did a quick comparison to SEL16 on NEX-6 at f/4.5 and the Cosina won in every aspects. I wonder how much difference between this lens and the Voigtlander Heliar I
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Gratulations.
Actually the lens is 100% identical to the Voigtlaender lens version 1. Cosina did't have the right's straight from the beginning of this production line to sell their lenses and cameras under the Voigtlaender brand and sold in some markets under their own brand name. Same is true for their cameras. This lens was specially produced for the "Cosina SW-107" which is broadly known as the Bessa-L, which is the version without any built-in Finder for those super wide lenses. The last Bessa L was produced in 2003. It's by the way the most reasonable way to use this lens on a "FF"-body, where it is most attractive without any compatibility problems (like with some Sony digital cameras). A somehow comparable camera is the Leica MD, although it was produced more for scientific purposes and with Leica M bayonet instead of M39/LTM like the Cosina Voigtlaender.
I don't see any reason why this version should be anything special. However, collectors may have other views on that.
Finally, the CV 15mm is a very great lens. There is no doubt about that. I like it very much, although I like my CV 12mm even more. 
_________________
Thomas Bernardy
Manual focus lenses mainly from Minolta, Pentax, Voigtlaender, Leitz, Topcon and from Russia (too many to be listed here). |
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Langstrum
Joined: 16 Feb 2014
Posts: 351
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| Posted: Fri May 15, 2015 11:57 am Post subject: Re: Cosina L Aspherical 15mm f/4.5 (L39/M39 mount) |
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Langstrum wrote:
| tb_a wrote: |
| Langstrum wrote: |
My new acquirement! I found this lens on a Korean site but I had zero information, then I figured out it's the original version of the Voigtlander Heliar 15mm f/4.5, before Cosina bought Voigtlander and changed the name of the lens. How rare is it? I found only few copies appeared on the Internet, ranging from $300 to $1000 (I bought it for $280). The build, appearance, quality of this lens is amazing, it's much better than my SEL16 f/2.8 and very it looks very tiny, shining on my NEX-6. I did a quick comparison to SEL16 on NEX-6 at f/4.5 and the Cosina won in every aspects. I wonder how much difference between this lens and the Voigtlander Heliar I
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Gratulations.
Actually the lens is 100% identical to the Voigtlaender lens version 1. Cosina did't have the right's straight from the beginning of this production line to sell their lenses and cameras under the Voigtlaender brand and sold in some markets under their own brand name. Same is true for their cameras. This lens was specially produced for the "Cosina SW-107" which is broadly known as the Bessa-L, which is the version without any built-in Finder for those super wide lenses. The last Bessa L was produced in 2003. It's by the way the most reasonable way to use this lens on a "FF"-body, where it is most attractive without any compatibility problems (like with some Sony digital cameras). A somehow comparable camera is the Leica MD, although it was produced more for scientific purposes and with Leica M bayonet instead of M39/LTM like the Cosina Voigtlaender. |
Thank you for the detailed information, it's very helpful.
Anyway, this lens is in pristine condition, it looks very nice on NEX camera and totally can replace my Sony 16mm in term of quality, that's the main reasons I like it.
Could you tell me what is the compatibility problem of this lens with Sony digital cameras? I might read it somewhere but I didn't read it carefully.
_________________
Camera: Sony A7 mark III, A6300
AF Lenses:
Canon EF 50/1.8; EF 200/2.8 L, EF 200/1.8 L, EF 300/4 L Sony E mount SEL 50/1.8 OSS, SEL 16/2.8 Fuji X mount XF 35/1.4 R
MF Lenses: Peleng MC 8/3.5, 17/2.8 Samyang 14/T3.1, 35/T1.5, TS 24/3.5 ED, 85/T1.5, Polar 85/1.4 Auto Revuenon 28/2.8; MC 50/1.4 Vega11U 50/2.8 Carl Zeiss Tessar 50/2.8 (exakta mount) Auto Chinon 50/1.9 Zenitar ME1 50/1.7 Sears Auto Sears 55/1.4; Sears 135/2.8 Auto Yashinon DX 50/1.4; Tomioka 50/1.2 SMC Pentax 50/1.7; 50/1.4 Canon FD 50/1.4 S.S.C; 55/1.2 S.S.C; FD 50/1.2 L; FD 85/1.2 L; 85/1.2 S.S.C Aspherical; FD 80-200/4 L 300/2.8 S.S.C Fluorite FD 300/2.8 L FD 200/1.8 LCosina-S 50/1.2 Helios Helios 44 Chrome f/22, 44-2, 44-3, 44M-4, 44M-7 (58/2), Helios-40 85/1.5 Jupiter Jupiter-9 85/2; Jupiter-37A 135/3.5; Jupiter-21M 200/4 Nikon Ai 105/2.5 Tairs-3S 300/4.5
Voigtlander 15/4.5 Aspherical; Ultron 35/1.7
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Aanything
Joined: 27 Aug 2011
Posts: 2187
Location: Piacenza, Italy
Expire: 2014-05-30
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| Posted: Fri May 15, 2015 12:43 pm Post subject: Re: Cosina L Aspherical 15mm f/4.5 (L39/M39 mount) |
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Aanything wrote:
| Langstrum wrote: |
Thank you for the detailed information, it's very helpful.
Anyway, this lens is in pristine condition, it looks very nice on NEX camera and totally can replace my Sony 16mm in term of quality, that's the main reasons I like it.
Could you tell me what is the compatibility problem of this lens with Sony digital cameras? I might read it somewhere but I didn't read it carefully. |
Roughly:
some sony cameras (especially the full frame mirrorless series, but also the nex-7 with some lenses) tend to show smearing and color casts in the corners with some wide lenses, especially rf ones, but not only them and not all of them.
The first version of the CV 4.5/15 had some of these issues, IIRC, that have improved in the last version of the lens - however these should not affect your a6000 - as your samples show.
However, the issue has been widely debated on the forum, so if you want more information you should be able to find quite a lot of threads about it.
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C&C and editing of my pics are always welcome
Samples from my lenses
My gear
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tb_a
Joined: 26 Jan 2010
Posts: 3678
Location: Austria
Expire: 2019-08-28
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| Posted: Fri May 15, 2015 12:51 pm Post subject: Re: Cosina L Aspherical 15mm f/4.5 (L39/M39 mount) |
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tb_a wrote:
| Langstrum wrote: |
Anyway, this lens is in pristine condition, it looks very nice on NEX camera and totally can replace my Sony 16mm in term of quality, that's the main reasons I like it.
Could you tell me what is the compatibility problem of this lens with Sony digital cameras? I might read it somewhere but I didn't read it carefully. |
I like it too. However, since I have besides my NEX (was by the way bundled with the 16mm Sony lens, so I know exactly what you mean) also the Ricoh GXR-M which is specially designed for Leica M and M39/LTM lenses, I use my Voigtlaender LTM lenses mainly on the Ricoh.
I've seen a lot of pictures from different NEX versions and also from the A7 and A7R where this CV 15mm creates color cast in the edges. If you google around, I am sure that you will find something more detailed about it. A user reported here that the newer version of the CV lens (version 3) is also usable now without any troubles on the A7. But not all NEX's are affected. My NEX-C3 (16MP) can handle it. Also a fellow user here with a NEX-5N is using this CV 15mm lens without any troubles. The bigger problems are with the CV 12mm lens. But this has nothing to do with the quality of the lenses as such but with the very narrow flange focal distance of the Sony E-mount system for which this lenses have not been designed and the Sony sensors have not been designed (to the contrary of the Ricoh sensor) to care about this specialty which may occur when ultra wide lenses are used.
I am afraid you have to read those articles again more carefully if you want to learn a little bit more about this phenomena and how to deal with it during post processing in order to get rid of it, if necessary at all.
_________________
Thomas Bernardy
Manual focus lenses mainly from Minolta, Pentax, Voigtlaender, Leitz, Topcon and from Russia (too many to be listed here). |
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Langstrum
Joined: 16 Feb 2014
Posts: 351
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| Posted: Fri May 15, 2015 1:12 pm Post subject: |
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Langstrum wrote:
I really appreciate the response from both of you. I will surely read it carefully by myself and see how much it affects my photos. I didn't have any Voigtlander before so I didn't pay much attention on that debates.
_________________
Camera: Sony A7 mark III, A6300
AF Lenses:
Canon EF 50/1.8; EF 200/2.8 L, EF 200/1.8 L, EF 300/4 L Sony E mount SEL 50/1.8 OSS, SEL 16/2.8 Fuji X mount XF 35/1.4 R
MF Lenses: Peleng MC 8/3.5, 17/2.8 Samyang 14/T3.1, 35/T1.5, TS 24/3.5 ED, 85/T1.5, Polar 85/1.4 Auto Revuenon 28/2.8; MC 50/1.4 Vega11U 50/2.8 Carl Zeiss Tessar 50/2.8 (exakta mount) Auto Chinon 50/1.9 Zenitar ME1 50/1.7 Sears Auto Sears 55/1.4; Sears 135/2.8 Auto Yashinon DX 50/1.4; Tomioka 50/1.2 SMC Pentax 50/1.7; 50/1.4 Canon FD 50/1.4 S.S.C; 55/1.2 S.S.C; FD 50/1.2 L; FD 85/1.2 L; 85/1.2 S.S.C Aspherical; FD 80-200/4 L 300/2.8 S.S.C Fluorite FD 300/2.8 L FD 200/1.8 LCosina-S 50/1.2 Helios Helios 44 Chrome f/22, 44-2, 44-3, 44M-4, 44M-7 (58/2), Helios-40 85/1.5 Jupiter Jupiter-9 85/2; Jupiter-37A 135/3.5; Jupiter-21M 200/4 Nikon Ai 105/2.5 Tairs-3S 300/4.5
Voigtlander 15/4.5 Aspherical; Ultron 35/1.7
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tb_a
Joined: 26 Jan 2010
Posts: 3678
Location: Austria
Expire: 2019-08-28
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| Posted: Sun Sep 06, 2015 5:25 pm Post subject: |
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tb_a wrote:
CV 15mm/4.5 on Ricoh GXR-M (clickable for larger view):
_________________
Thomas Bernardy
Manual focus lenses mainly from Minolta, Pentax, Voigtlaender, Leitz, Topcon and from Russia (too many to be listed here). |
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