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Re: [OM] (OM) OT - sort of - apparent discernable resolution,

Subject: Re: [OM] (OM) OT - sort of - apparent discernable resolution,
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Thu, 19 Apr 2012 10:19:24 -0400
Even for small, mirrorless cameras with very short register distances?

Chuck Norcutt

On 4/19/2012 9:45 AM, Sawyer, Edward wrote:
> Major differences exist between MF and LF lenses in a focal length like
> 135mm, and something designed for small format (35mm). The small format lens
> will invariably be a telephoto design, while the LF and MF lenses will more
> likely (definitely in the case of LF) be a symmetrical design, with the
> inherent corrections that come along with it.  The rendering of the
> different optical formulas is significant.  All else being equal, a
> symmetrical lens (or something close to it) will always have an advantage
> over other designs, thus another advantage for MF and LF glass.
>
>
> On 4/19/12 6:16 AM, "olympus-request@xxxxxxxxxxxxxxxxx"
> <olympus-request@xxxxxxxxxxxxxxxxx>  wrote:
>
>>> Brings up Moose's point about larger format having an inherent
>>> advantage in producing images with narrow dof with very sharp plane of
>>> focus with nice bokeh.
>>
>> But the differences held even when the focal lengths were similar. A 135mm
>> lens in medium format produces the same DoF as a 135mm lens in 35mm format
>> when the subject on film size remains the same. If the focal length and
>> subject-film distance remains the same, the only advantage to the medium
>> format is the amount of room in the image you have to work with for
>> cropping.
>>
>
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