XPost: alt.windows7.general, alt.comp.os.windows-10, alt.comp.ha   
   dware.pc-homebuilt   
   XPost: alt.comp.os.windows-10   
   From: nospam@nospam.invalid   
      
   In article , +++ATH0   
    wrote:   
      
   > >>>> One other factor to bear in mind: the depth of field varies with lens   
   > >>>> focal length, not field of view of the subject.   
   > >>>   
   > >>> actually, it's aperture.   
   > >>   
   > >> actually, it's the ratio of focal length to aperture.   
   > >   
   > > nope. depth of field is a function of physical aperture.   
   > >   
   > > what you describe is f/stop, which is used for exposure purposes, and   
   > > in some cases (usually movies), t/stops are used, which is actual light   
   > > transmission through the lens, not a simple ratio.   
   >   
   > Are you claiming that focal length has no bearing on depth of field?   
      
   for the same subject size and same image quality (coc), no.   
      
   > That's an interesting viewpoint.   
      
   not really. it's just math.   
      
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