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Nikos
Joined: 17 May 2010
Posts: 1077
Location: Greece
Expire: 2015-01-02
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 Posted: Fri Jun 04, 2010 5:24 pm Post subject: CZ 1,4/85 Contax: Infinity focus problem |
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Nikos wrote:
Hello.
The adapter for my Contax 1,4/85 is finally here.
I got it from eBay seller big_is .
I found out, however, that I cannot get true infinity focus with my EOS 5D II (as advertised by the seller).
While it focuses to about 50m away, this is not good enough as the following pictures show.
I think by f/5.6 it is OK, but of course I do not want to use this lens at 5.6 (at least most of the time).
Am I doing something wrong?
Do you have another adapter to recommend?
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Νίκος • www.diafragma.gr
Cameras: Canon EOS 5D Mark II, Sony α7R, Sony NEX-5N
MF lenses:
SLR:
Canon TS-E 17mm f/4, Zeiss 2.8/21 ZE, Zeiss 2/28 Contax, Zeiss 2/35 ZE, Zeiss 1.4/50 Contax, Zeiss 1.4/85 Contax, Zeiss Makro 2/100 ZE,
Zeiss 2/135 Contax, Zeiss 2.8/135 Contax, Zeiss Vario-Sonnar 35-70 Contax, Zeiss Vario-Sonnar 100-300 Contax, Zeiss F-Distagon Rollei, Canon FD 24mm f2, Minolta MD Rokkor 35mm f2.8
Rangefinder:
Zeiss 4.5/21 C Biogon ZM, Zeiss 2/35 Biogon ZM, Voigtländer 15mm f/4.5 Heliar L39, Leica Tele-Elmarit 2.8/90mm, Zeiss 2/45 Contax G, Zeiss 2.8/90 Contax G, Canon 50mm 1.8 LTM
AF lenses: Canon 15mm f/2.8 Fisheye, Canon 24-70 f/2.8 L, Canon 70-200 f/2.8 L IS II, Canon 70-200 f/4 L, Canon 300 f/4 L IS, Canon 100 f/2.8 macro
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poilu
Joined: 26 Aug 2007
Posts: 10472
Location: Greece
Expire: 2019-08-29
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| Posted: Fri Jun 04, 2010 5:30 pm Post subject: |
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poilu wrote:
have you used liveview, AF confirm is not always precise
my adapter is from big_is and I reach infinity
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Nikos
Joined: 17 May 2010
Posts: 1077
Location: Greece
Expire: 2015-01-02
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| Posted: Fri Jun 04, 2010 5:34 pm Post subject: |
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Nikos wrote:
| poilu wrote: |
have you used liveview, AF confirm is not always precise
my adapter is from big_is and I reach infinity |
Yes, I have checked it with LiveView at 10X on a solid tripod.
However mine looks different than the one you showed me.
Do you think I should contact big_is ?
Click here to see on Ebay
Last edited by Nikos on Fri Jun 04, 2010 6:59 pm; edited 1 time in total |
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Nikos
Joined: 17 May 2010
Posts: 1077
Location: Greece
Expire: 2015-01-02
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| Posted: Fri Jun 04, 2010 5:38 pm Post subject: |
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Nikos wrote:
I think I should RTFM 
The adapter supports focus micro adjustment...
It seems I should be able to adjust it.
Last edited by Nikos on Fri Jun 04, 2010 7:02 pm; edited 1 time in total |
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poilu
Joined: 26 Aug 2007
Posts: 10472
Location: Greece
Expire: 2019-08-29
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| Posted: Fri Jun 04, 2010 5:52 pm Post subject: |
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poilu wrote:
if you don't reach infinity with liveview, you have to do this procedure
I have not tuned my 85:1.4 but it should be the same way
http://forum.mflenses.com/viewtopic,p,58090.html#58090
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Nikos
Joined: 17 May 2010
Posts: 1077
Location: Greece
Expire: 2015-01-02
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| Posted: Fri Jun 04, 2010 6:19 pm Post subject: |
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Nikos wrote:
How am I supposed to unscrew the front of the lens?
Just hold it and turn it counter-clockwise?
I feel a bit uncomfortable to do this, as it feels very solid and one single piece. It is going to unscrew? Are you sure the 85mm is built the same way? |
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Nikos
Joined: 17 May 2010
Posts: 1077
Location: Greece
Expire: 2015-01-02
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| Posted: Fri Jun 04, 2010 7:01 pm Post subject: |
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Nikos wrote:
| nkanellopoulos wrote: |
I think I should RTFM
The adapter supports focus micro adjustment...
It seems I should be able to adjust it. |
It took me a while, but at least I realized that this should sound funny.
Apparently, focus micro adjustment is only effective for the focus confirmation...
OK, I got too excited. |
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poilu
Joined: 26 Aug 2007
Posts: 10472
Location: Greece
Expire: 2019-08-29
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| Posted: Fri Jun 04, 2010 8:22 pm Post subject: |
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poilu wrote:
| Quote: |
| Are you sure the 85mm is built the same way? |
now that I see the lens, it must be another way, the front glass take all the opening and no place for the 3 screws
maybe someone here now how to adjust this lens
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