Archived posting to the Leica Users Group, 1999/02/01

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Subject: Re: [Leica] Re: digital vs film
From: "James A.Harrison II" <LeicaR7@msn.com>
Date: Mon, 1 Feb 1999 18:54:31 -0600

 Hey; back off; I was asking a question because I didn't know;;;jh


>It's not "MY" system. That's the way sensor manufacturers make sensors. The
>eye is twice as sensitive to green as any other color (according to the
>experts) and this must be accounted for. It also makes it easy to make a
>pixel block.
>
>R G
>G B
>
>All even rows are R G R G R G R G... all odd rows are G B G B G B G B. So
>to make a "real" pixel, a square block of four pixels:
>
>R G
>G B
>
>make up a real pixel.
>
>Jim
>
>
>At 06:29 PM 2/1/99 -0600, you wrote:
>>Jim Brick:  I'm am curious; why does your system require two green
sensors?
>>When I shot crime photos for the US Air Force we used, and they still use,
>>conventional C-41.  They used to only use black and white but I convinced
>>the cops color would impress a jury more than a black and white photo.
When
>>some bozo colonel ordered Kodak digital cameras for us to use, I reminded
>>him that DOD prohibited taking crime scene/accident photos with anything
but
>>real film;;;chain of custody etc.  You can do some scary stuff with
>>Photoshop;;I used a M2 to photograph an aircraft crash into a civ
apartment
>>complex.  Raining, local civ photogs used fancy electronic camera that
>>failed; I just kept on shooting;;;jh
>>
>>
>>James A. Harrison II, Major, USAF, Retired
>>MBA, BS Electronics, Associate Education
>>First Class Engineers License
>>First Class Technician License
>>Mensa
>>Concert Viola ---Oh yeah,,,,,Unemployed
>>
>>
>>
>