Archived posting to the Leica Users Group, 2008/04/24

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Subject: [Leica] IMG: the episode in which Hoppy becomes a criminal
From: grduprey at mchsi.com (grduprey@mchsi.com)
Date: Thu Apr 24 14:26:15 2008

Now if I only had a DMR.  ;-)

Gene

-------------- Original message ----------------------
From: wildlightphoto@earthlink.net
>
> Stasys Petravicius <stasys1@cox.net> wrote:
> 
> >Steve- I'm not sure- but I think you've explained it correctly. My old 
> >60 mm macro has no electrical contacts (like the new R lenses have), 
> >and has no bar coding  as is being added by some for their M8's. 
> >somehow- the EXIF viewer software program pick up the data when you put 
> >your image file in to the software file on the monitor. I hope this 
> >helps, Stasys
> >On Apr 23, 2008, at 5:33 PM, Steve Barbour wrote:
> >
> >>
> >> On Apr 23, 2008, at 5:18 PM, grduprey@mchsi.com wrote:
> >>
> >>> Stasys,
> >>>
> >>> The M8 does not have any connections in the lenses which can read the 
> >>> actual aperture used.  The R lenses, especially the current ROM 
> >>> lenses do have this connection and can read the actual aperture.  The 
> >>> M8 can only read the info in the coding bar to record the max 
> >>> aperture, as there is no linkage to tell the actual used aperture.
> >>
> >> so the coding has nothing to do with outcome or photo quality, just 
> >> puts the lens into the exif...is that correct?
> >>
> >>
> >> Steve
> >
> 
> The DMR can correct for vignetting when the lens has ROM.
> 
> Doug Herr
> Birdman of Sacramento
> http://www.wildlightphoto.com
> 
> 
> 
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