Archived posting to the Leica Users Group, 2007/04/18

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Subject: [Leica] IMG M8 filter comparison: synthetics in cloudy daylight
From: philippe.orlent at pandora.be (Philippe Orlent)
Date: Wed Apr 18 13:58:17 2007
References: <BAY116-F25CF15AAEF0593EB473EC39F500@phx.gbl>

Nice colors, without filter, though.
Thanks for showing,
Philippe



Op 18-apr-07, om 22:50 heeft MARK DAVISON het volgende geschreven:

> I had really hoped that the M8 IR shift would not be visible in  
> cloudy daylight, even in the presence of synthetic fabrics.   
> However, for critical work this is not the case, as the following  
> example shows.
>
> The subject is a black pile jacket, a faded nylon swimsuit, and a  
> GretagMacbeth color checker chart, all sitting on a sythetic  
> bedspread, lit by cloudy daylight.  Each picture has been  
> separately white balanced in Capture One LE using the medium grey  
> patch on the color checker chart.  The IR filter is a B+W 486. M8  
> firmware 1.092. Color profile is Leica M8 generic.
>
> The reproduction of the color checker chart is quite good.  There  
> is a pronounced color shift in the black pile jacket, a smaller  
> shift in the bedspread, and no discernible shift in the faded nylon.
>
> With filter:
> http://gallery.leica-users.org/v/MarkEDavison/M8infrared/L1000493 
> +filt+WB+med+grey.jpg.html
>
> Without filter:
> http://gallery.leica-users.org/v/MarkEDavison/M8infrared/L1000494+no 
> +filt+WB+med+grey.jpg.html
>
>
> Mark Davison
>
>
>
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> Leica Users Group.
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>


In reply to: Message from davison_m at msn.com (MARK DAVISON) ([Leica] IMG M8 filter comparison: synthetics in cloudy daylight)