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[OM] Re: What is backfocus?

Subject: [OM] Re: What is backfocus?
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Fri, 22 Jun 2007 08:05:49 -0400
Page 8 of this Canon white paper describes the AF system of the 5D
<http://www.robgalbraith.com/public_files/Canon_EOS_5D_White_Paper.pdf>

Chuck Norcutt

Jez Cunningham wrote:
> It doesn't answer your question, but:
> 
> Interesting description of Nikkon autofocus problems here:
>  http://www.luminescentphoto.com/articles/CAM2000/cam2000.html
> 
> And also to note, Cannon have introduced (in 1DSmk3) a custom function
> called *AF Microadjustment *to allow the user to correct focussing errors.
> See:
>  http://www.luminous-landscape.com/reviews/cameras/1D-MKIII-Field.shtml
> 
> br
> Jez
> 
> On 6/22/07, Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx> wrote:
>> That all makes perfect sense but I suspect that the "master body" and
>> "master lens" are really electronic test fixtures.  I'd just like to
>> know what is being calibrated on the lens.
>>
>> Chuck Norcutt
>>
> 
> 
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