Sorry, Chuck. I misread your words "few millimeters", it is film plan to
object distance not lens distance. Yes, the few millimeters could affect the
DOF a little :-)
C.H.Ling
----- Original Message -----
From: "C.H.Ling"
> BTW, it still does not explain why the Leica RF 35mm system has the same
> DOF as other 35mm SLR system or it is not?
>
> C.H.Ling
>
> ----- Original Message -----
> From: "C.H.Ling"
>
>> For the same magnification, a 100mm equivalent lens should gives the same
>> "working distance" as a 100mm lens in 35mm system (except for close up
>> may be), it means the distance to the subject will be the same.
>>
>> C.H.Ling
>>
>> ----- Original Message -----
>> From: "Chuck Norcutt"
>>
>>>A little bit. The DoF formula wants the distance to the subject. But
>>> subject distance is measured from the image plane. If you move that
>>> forward by a few millimeters you'll get a different DoF. :-) :-)
>>>
--
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