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Re: [OM] rokkor 58/1.2

Subject: Re: [OM] rokkor 58/1.2
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Thu, 09 May 2013 22:59:08 -0400
If you say so.  But I don't think I'd trust it... or myself that is.

Chuck Norcutt


On 5/9/2013 3:17 PM, Sawyer, Edward wrote:
> Because if you don't need infinity wide-open, there's no need to file down
> the ring. Focus to less than infinity and stop down. Increased DOF gets
> infinity, and mirror doesn't hit back of lens.
>
>
> On 5/9/13 12:50 AM, "olympus-request@xxxxxxxxxxxxxxxxx"
> <olympus-request@xxxxxxxxxxxxxxxxx> wrote:
>
>> It's my understanding that the reason for filing
>> the rear ring down is to make clearance for the 5D's oversized mirror
>> when the lens is at infinity.  I don't see how "wide open" has anything
>> to do with it.
>
-- 
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