Archived posting to the Leica Users Group, 2001/02/06

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Subject: RE: [Leica] how can the 75 Lux focus go bad?
From: "Austin Franklin" <austin@darkroom.com>
Date: Tue, 6 Feb 2001 18:29:55 -0500
 
>
> http://www.silverlight.co.uk/resources/dof_calc.html
>
> > From: "Austin Franklin" <austin@darkroom.com>
> >
> >> Wide open and focused close, the depth of field of the 75/1.4
> >> is between 6mm
> >> to 8mm (just over a quarter inch).
> >
> > What are you basing this number on?

I don't believe it's accurate.  I routinely shoot at 1.4 with both a 75 and
an 85, and I find my critical DOF to be much much larger than 6mm to 8mm.  I
also print typically 13x19...so DOF is quite noticeable.
Replies: Reply from Jim Brick <jim_brick@agilent.com> ([Leica] Re: how can the 75 Lux focus go bad?)
Reply from Mark Rabiner <mark@rabiner.cncoffice.com> ([Leica] Seeing Red)