Jan Steinman wrote:
>> From: Moose <olymoose@xxxxxxxxx>
>>
>> Chuck has made some comments on DOF calculations. They dont' square
>> with
>> my experience with mirror lenses. The issue is that most DOF
>> calculation
>> assume a relatively modest magnification for viewing. With mirror
>> lenses, I find myself quite often cropping and blowing them up a lot
>> more. That results in shallower effective DOF.
>>
>
> Keep in mind that DOF is affected by the aperture *and the FINAL
> reproduction ratio.*
>
What I was saying, but trying to avoid tech terms.
Moose
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