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Attila
Joined: 24 Feb 2007
Posts: 57849
Location: Hungary
Expire: 2025-11-18
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 Posted: Tue Mar 20, 2007 7:24 pm Post subject: Carl Zeiss Jena Sonnar 200mm f/2.8 M42 |
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Attila wrote:
Wide open shoot.
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Orio
Joined: 24 Feb 2007
Posts: 29545
Location: West Emilia
Expire: 2012-12-04
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| Posted: Tue Mar 20, 2007 11:53 pm Post subject: |
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Orio wrote:
Attila, I notice a lot of CA in your samples, that I don't get from my copy.
I think you may have a bad copy of this lens.
I show you one of my most recent pictures with this lens:
Whole image resized:
A 100% crop from a defocused area (I badly misfocused on this shot because of the hurry):
direct:
http://img490.imageshack.us/img490/8820/czj2yf3.jpg
This is the small part of the picture that is in focus:
From my copy I get some CA in the corners when wide open, but it's as much as that - and not as bad as yours.
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Attila
Joined: 24 Feb 2007
Posts: 57849
Location: Hungary
Expire: 2025-11-18
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| Posted: Tue Mar 20, 2007 11:59 pm Post subject: |
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Attila wrote:
I think that is not CA, rather than other plants around the subject.
Same lens , same time.
What you think ?
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Orio
Joined: 24 Feb 2007
Posts: 29545
Location: West Emilia
Expire: 2012-12-04
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| Posted: Wed Mar 21, 2007 12:09 am Post subject: |
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Orio wrote:
I see strong cyan CA around the blurred rocks, and strong red CA around the child's hand and the animal's nose and tongue.
Sorry 
It seems to have to do both with the frame position (edge, corner) and the focusing (blurred).
The central focused part with the animal is tack sharp.
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Attila
Joined: 24 Feb 2007
Posts: 57849
Location: Hungary
Expire: 2025-11-18
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| Posted: Wed Mar 21, 2007 12:13 am Post subject: |
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Attila wrote:
No problem I will survive 
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Items on sale on Ebay
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Orio
Joined: 24 Feb 2007
Posts: 29545
Location: West Emilia
Expire: 2012-12-04
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| Posted: Wed Mar 21, 2007 12:15 am Post subject: |
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Orio wrote:
I tried to fix it with PT Lens (Photoshop), but it's too strong, when I cure it from one side of the tongue, it comes out of the other
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Orio, Administrator
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NE CEDE MALIS AUDENTIOR ITO
Ferrania film is reborn! http://www.filmferrania.it/
Support the Ornano film chemicals company and help them survive!
http://forum.mflenses.com/ornano-chemical-products-t55525.html |
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Attila
Joined: 24 Feb 2007
Posts: 57849
Location: Hungary
Expire: 2025-11-18
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| Posted: Wed Mar 21, 2007 12:23 am Post subject: |
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Attila wrote:
No problem I like these pics even with CA, don't waste your time.
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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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Borges
Joined: 09 Mar 2007
Posts: 646
Location: Moers, Germany
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| Posted: Wed Mar 21, 2007 8:12 am Post subject: |
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Borges wrote:
*oops* I see nothing. No CA. Perhaps this is because I'm red-green blind. So I have to ask a maybe dump question: is this really noticable on these images? Or is this something specially regarded by you, Orio?
Michael
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