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  Topic: Canon RP and Contax N
ManWearPants

Replies: 1
Views: 4282

PostForum: Contax N to Canon EF Mount Conversion   Posted: Wed Mar 27, 2019 2:34 pm   Subject: Canon RP and Contax N
Hi Bo-ming,

Does the converted Contax N lenses works on Canon RP with mount adaptor EF-R?

regards,
MWP
  Topic: FS: Contax N 17-35/2.8
ManWearPants

Replies: 1
Views: 4104

PostForum: Buy and Sell   Posted: Thu Feb 27, 2014 1:02 pm   Subject: FS: Contax N 17-35/2.8
Front:
http://farm8.staticflickr.com/7323/12808528284_5ea7c27384_c.jpg

Rear:
http://farm8.staticflickr.com/7383/12808527894_a0b4c8e6c1_c.jpg

center pinched caps useful with the hood on.
http: ...
  Topic: FS: Contax N 17-35/2.8
ManWearPants

Replies: 1
Views: 4104

PostForum: Buy and Sell   Posted: Thu Feb 27, 2014 1:01 pm   Subject: FS: Contax N 17-35/2.8
$3500 nett. Price including shipping and paypal fees.

Lens converted in April 2010. Serial #1513xxxx . Location of lens is in Singapore.

These are all included:
1) Original GB-103 metal hood ...
  Topic: Contax N 17-35 issues
ManWearPants

Replies: 4
Views: 10145

PostForum: Sony NEX Discussions   Posted: Fri Feb 07, 2014 6:28 am   Subject: Contax N 17-35 issues
I managed to revive the auto focus in the lens using a Canon body. However, the instructions in the troubleshooting did not work for me.
http://conurus.com/contax/user-manual/using-autofocus

Out o ...
  Topic: Contax N 17-35 issues
ManWearPants

Replies: 4
Views: 10145

PostForum: Sony NEX Discussions   Posted: Tue Jan 28, 2014 12:38 pm   Subject: Contax N 17-35 issues
(2) and (3) solved as per what you have mentioned.

(1) I noticed my AF has stopped working even on Canon system. I have not used the lens for a while. I understand there may be a way to wake the m ...
  Topic: Contax N 17-35 issues
ManWearPants

Replies: 4
Views: 10145

PostForum: Sony NEX Discussions   Posted: Sun Jan 26, 2014 5:40 am   Subject: Contax N 17-35 issues
My Contax N 17-35 has the following issue when using the Metabones EF-E adapter. It is on firmware 3.04j

(1) It does not autofocus

(2) When trying to magnify, the A7 shows," This operation ...
  Topic: Manual Focusing lenses, Dandelion and Optix V chips
ManWearPants

Replies: 1
Views: 6759

PostForum: Sony NEX Discussions   Posted: Thu Jan 09, 2014 1:52 am   Subject: Manual Focusing lenses, Dandelion and Optix V chips
I understand that Metabones EF-E adapters do not officially support manual focus (alternative) lenses, Dandelion and Optix V chips. But I am sure many Contax N users are also users of such lenses on C ...
  Topic: Does the EOS/NEX autofocus adapter support Contax N lenses
ManWearPants

Replies: 11
Views: 21564

PostForum: Sony NEX Discussions   Posted: Thu Jan 09, 2014 1:41 am   Subject: Does the EOS/NEX autofocus adapter support Contax N lenses
How does one get into the advanced mode mentioned above?
  Topic: Does the EOS/NEX autofocus adapter support Contax N lenses
ManWearPants

Replies: 11
Views: 21564

PostForum: Sony NEX Discussions   Posted: Mon Jan 06, 2014 12:05 pm   Subject: Does the EOS/NEX autofocus adapter support Contax N lenses
I have used the Metabone v3 on A7 with Contax N17-35 and N85. They both work after a 2 sec noisy focusing hunt. This is excellent!

There are now a few similar adapters which I believed to be revers ...
  Topic: Compatibility with new sony mirrorless A7R?
ManWearPants

Replies: 6
Views: 12626

PostForum: Sony NEX Discussions   Posted: Thu Oct 31, 2013 3:11 am   Subject: Compatibility with new sony mirrorless A7R?
Hi Bo-Ming,

I noticed on Metabones' website, the EF-NEX v3 adapter has been tested with A7/A7r. You also mentioned that firmware v18 (May 2013) has AF enabled for Contax N lenses.

Will there be ...
  Topic: Speed Booster : EF to Sigma SA mount
ManWearPants

Replies: 1
Views: 6696

PostForum: Feature Enhancement Requests   Posted: Mon Oct 28, 2013 6:10 am   Subject: Speed Booster : EF to Sigma SA mount
Since you are into both EF and SA mounts conversion. I am wondering whether you can make EF lens to SA camera mount speed booster available.

To boldly goes where no one else has gone. You can conta ...
  Topic: Sony FE-mount: thin adapter with optics
ManWearPants

Replies: 0
Views: 4463

PostForum: Feature Enhancement Requests   Posted: Mon Oct 21, 2013 4:06 pm   Subject: Sony FE-mount: thin adapter with optics
[edit to rephrase Q]

Sony A7 flange distance likely to be 18mm. Canon EF flange distance is 44mm. I would think EF-FE mount adapters are 26mm thick.

Is it possible to implement an adapter with o ...
  Topic: Does the EOS/NEX autofocus adapter support Contax N lenses
ManWearPants

Replies: 11
Views: 21564

PostForum: Sony NEX Discussions   Posted: Mon Oct 21, 2013 4:59 am   Subject: Sony A7r with no phase detect
The phase detect AF algorithm is important to Contax N lenses. Does this mean:

(1) We can expect Contax N lenses on the A7 to AF even better since it is using 125 AFP compared to the 99 on NEX 6, a ...
  Topic: Does the EOS/NEX autofocus adapter support Contax N lenses
ManWearPants

Replies: 11
Views: 21564

PostForum: Sony NEX Discussions   Posted: Wed Oct 16, 2013 7:25 am   Subject: NEX A7 and A7R
Bo-Ming,

1) Are all Contax N lenses facing the same AF problem when using metabone or just a few? Are there any that works during your testing. I am having Contax N17-35 and 85 only. So if it works ...
  Topic: Sony Alpha 900 or Equivalent
ManWearPants

Replies: 4
Views: 17386

PostForum: Contax N to Canon EF Mount Conversion   Posted: Sun Mar 03, 2013 2:04 pm   Subject: Sony Alpha 900 or Equivalent
Hi Bo-ming,

I came across this adapter that comes with aperture. Assuming you can put a chip that runs through this adapter to activate the in camera OIS and AF, would it be possible to relook into ...
 
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