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fotomachi
Joined: 02 Feb 2008
Posts: 638
Location: Estados Unidos de las Esferas Ultraterrenales
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 Posted: Thu May 10, 2012 9:58 am Post subject: FLT.III: Schneider-Kreuznach Xenon 40mm f/1.9 (Robot) on NEX |
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fotomachi wrote:
Lens: Schneider-Kreuznach Xenon 40mm f/1.9 (Robot screw mount)
Camera: NEX-5
My blog entry: >>> Click here <<<
Two real-life images, both at f/11. One color, the other B/W. Look at the light bloom...
Out-of-focus rendering (pictures taken at minimum focussing distance):
f-stops: f/1.9 - f/2.8 - f/4 - f/5.6 - f/8 - f/11 - f/16
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Pancolart
Joined: 04 Feb 2008
Posts: 3705
Location: Slovenia, EU
Expire: 2013-11-18
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| Posted: Thu May 10, 2012 10:37 am Post subject: |
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Pancolart wrote:
The lack of contrast suggests of some kind of fault. Are you sure your lens is healthy?
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fotomachi
Joined: 02 Feb 2008
Posts: 638
Location: Estados Unidos de las Esferas Ultraterrenales
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| Posted: Thu May 10, 2012 11:16 am Post subject: |
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fotomachi wrote:
| Pancolart wrote: |
| The lack of contrast suggests of some kind of fault. Are you sure your lens is healthy? |
Also take a look at the following thread:
Xenon 1.9/40 on Robot,first photos fuji superia 200
Without extensive P&P, this is the kind of result you get. Later Xenon versions probably have better contrast.
My copy has several cleaning marks, but nothing that can explain the bloom.
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Pancolart
Joined: 04 Feb 2008
Posts: 3705
Location: Slovenia, EU
Expire: 2013-11-18
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| Posted: Thu May 10, 2012 11:42 am Post subject: |
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Pancolart wrote:
I put mine quickly on 5DmkII and didn't notice the bloom. I could only try it at less then 50cm distance due to different flange. Maybe Klaus (kds315*) can clarify this since he also made nice series: http://www.flickr.com/photos/kds315/sets/72157625264599767/with/5094445082
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kds315*
Joined: 12 Mar 2008
Posts: 16652
Location: Weinheim, Germany
Expire: 2021-03-09
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| Posted: Fri May 11, 2012 8:13 am Post subject: |
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kds315* wrote:
The lens is hazy inside, could be seen on teh 1st lens photo already. Get it cleaned and the issue is gone.
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Klaus - Admin
"S'il vient a point, me souviendra" [Thomas Bohier (1460-1523)]
http://www.macrolenses.de for macro and special lens info
http://www.pbase.com/kds315/uv_photos for UV Images and lens/filter info
https://www.flickr.com/photos/kds315/albums my albums using various lenses
http://photographyoftheinvisibleworld.blogspot.com/ my UV BLOG
http://www.travelmeetsfood.com/blog Food + Travel BLOG
https://galeriafotografia.com Architecture + Drone photography
Currently most FAV lens(es):
X80QF f3.2/80mm
Hypergon f11/26mm
ELCAN UV f5.6/52mm
Zeiss UV-Planar f4/60mm
Zeiss UV-Planar f2/62mm
Lomo Уфар-12 f2.5/41mm
Lomo Зуфар-2 f4.0/350mm
Lomo ZIKAR-1A f1.2/100mm
Nikon UV Nikkor f4.5/105mm
Zeiss UV-Sonnar f4.3/105mm
CERCO UV-VIS-NIR f1.8/45mm
CERCO UV-VIS-NIR f4.1/94mm
CERCO UV-VIS-NIR f2.8/100mm
Steinheil Quarzobjektiv f1.8/50mm
Pentax Quartz Takumar f3.5/85mm
Carl Zeiss Jena UV-Objektiv f4/60mm
NYE OPTICAL Lyman-Alpha II f1.1/90mm
NYE OPTICAL Lyman-Alpha I f2.8/200mm
COASTAL OPTICS f4/60mm UV-VIS-IR Apo
COASTAL OPTICS f4.5/105mm UV-Micro-Apo
Pentax Ultra-Achromatic Takumar f4.5/85mm
Pentax Ultra-Achromatic Takumar f5.6/300mm
Rodenstock UV-Rodagon f5.6/60mm + 105mm + 150mm
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JerryMK
Joined: 16 Apr 2009
Posts: 98
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| Posted: Fri May 11, 2012 8:39 am Post subject: |
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JerryMK wrote:
I think you really have a faulty lens. This is what mine does mounted on a Panasonic GH2, it produces clear and bright colored images.
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fotomachi
Joined: 02 Feb 2008
Posts: 638
Location: Estados Unidos de las Esferas Ultraterrenales
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| Posted: Fri May 11, 2012 9:18 am Post subject: |
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fotomachi wrote:
Since I found images with a comparable effect, I considered it to be an "authentic" effect rather then a technical issue. I didn't know that haze could have this kind of influence.
I'll have the lens repaired, thanks for telling me.
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