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Re: [OM] Focus Accuracy Test - Oh what misery we bringupon ourselves

Subject: Re: [OM] Focus Accuracy Test - Oh what misery we bringupon ourselves
From: "C.H.Ling" <ch_photo@xxxxxxxxxxxxx>
Date: Mon, 16 Aug 2010 19:33:02 +0800
I didn't follow very well for the details of all communications but I just
tried focusing the 24/2 at F2.8 with the 5D II at 10x liveview, I can't
differentiate focus between 5 and 6 meter.

Repeated the test with the EPL-1 with 14x view on the 1.4MP viewfinder, I
can only marginally differentiate objects of 5 and 6 meter, the movement on
the lens focusing scale is less than 0.5mm.

C.H.Ling

----- Original Message ----- 
From: "Chuck Norcutt" <chucknorcutt@xxxxxxxxxxxxxxxx>


> It was my contention that, using a 24mm lens wide open at 5 meters that
> you can't diffrentiate sharp focus between 5 and 6 meters even using a
> 10X live view.
>
> Chuck Norcutt
>
>
> Ken Norton wrote:
>> Please tell me what we are trying to accomplish with this test? If
>> it's to prove that I know how to focus a camera you all can go pack
>> sand.
>>
>> AG
>>
>> On Sunday, August 15, 2010, Moose <olymoose@xxxxxxxxx> wrote:
>>>   On 8/15/2010 4:49 AM, Ken Norton wrote:
>>>>> Bigger, better, vertical target, please.
>>>> But wouldn't that make the job of focusing easier?
>>> OK, so focus as before, then have your assistant place the target at the
>>> focal distance, so it's still a stringent test
>>> of focusing and so it's easy to judge success or failure.
>>>
>>> Moose

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