[OM] Re: Mini Macro questions

[usher99]

"The greater distance gives a better DOF too. "

 
Not meaning to be a mini macro nit picker but a 90mm macro lens will give you 
more working distance than say a 50 mm but if you  have the same magnification 
the DOF would not change at the same aperture.  You would also have better 
background control due to the narrower FOV.  The manner (?rate/"smoothness") in 
which the OOF areas change seem to vary with FL, though I've never seen that 
quantified or described.  Perhaps the latter is another hallucination.   
Mike
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