Archived posting to the Leica Users Group, 1999/03/29

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Subject: Re: [Leica]M42 adapter???? (was Too Many Lenses)
From: Martin Howard <marho@ikp.liu.se>
Date: Mon, 29 Mar 1999 13:19:30 +0200

Malcolm McCullough wrote:
>
> The ffd for Arriflex is 52.00 mm - that is the optical depth. Cameras
> are set so that the image is in focus 0.015 mm into the film, to allow
> for the thickness of the three layers.
>

Wouldn't the depth-of-focus (not depth-of-field) take care of that, even
for large apertures?  0.015mm sounds to me like it should be well within
the depth-of-focus range...

M.

- -- 
Martin Howard, Grad. Schl. for Human-Machine Interaction,  |
HMI/IKP, Linkoping University, SE-581 83 Linkoping, Sweden.|    Just
Tel: +46 13 28 5741; Fax: +46 28 2579; ICQ: 354739         | say "DOOH"
E-mail: marho@ikp.liu.se; www.iav.ikp.liu.se/staff/marho/  +------------