Archived posting to the Leica Users Group, 2008/08/28

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Subject: [Leica] Getting close to Photokina... I want to start anew rumor....
From: imagist3 at mac.com (Lottermoser George)
Date: Thu Aug 28 07:39:24 2008
References: <C5E8BB473E6A4F228A6598011DF8F56A@dadquad> <69448.33847.qm@web86712.mail.ukl.yahoo.com> <019501c9090e$53afebc0$fb0fc340$@net> <6C9C1DEA-E073-4077-890E-40C36F8808FF@mac.com> <01a001c9091b$0f0bac40$2d2304c0$@net>

according to Leica
the IR filter would have affected the fine detail they wished to  
preserve
said fine detail is evident in the image files from the M8

I have no way to test the effect that an IR filter would have had on  
the image quality
so, I accept Leica's explanation
and enjoy the jaw dropping detail in my image files

you may have a work around on your drawing board
getting it to production is another issue

Fond regards,
George

george@imagist.com
http://www.imagist.com
http://www.imagist.com/blog
http://www.linkedin.com/in/imagist



On Aug 28, 2008, at 9:33 AM, Frank Filippone wrote:

> I don't think that is the correct issue, George.....
>
> The micro lens filter may be needed to correct oblique light rays  
> to get a
> better overall flat gain in the sensor stages... but that has  
> nothing to do
> with the IR filter ( which may be simply a coating on the microlens  
> filter-
> plate).
>
> It is the lack of IR filter that causes Purple - Black Polyester
> shirts........  and, to the best of my knowledge, Leica M8 is the  
> singular
> ( non-P+S)  camera to lack this filter  The coating, if that is  
> what it is,
> is too thin to effect any optical characteristics other than frequency
> response........ ( a few microns thick..... ).


In reply to: Message from hoppyman at bigpond.net.au (Geoff Hopkinson) ([Leica] Getting close to Photokina... I want to start anew rumor....)
Message from frank.dernie at btinternet.com (FRANK DERNIE) ([Leica] Getting close to Photokina... I want to start anew rumor....)
Message from red735i at earthlink.net (Frank Filippone) ([Leica] Getting close to Photokina... I want to start anew rumor....)
Message from imagist3 at mac.com (Lottermoser George) ([Leica] Getting close to Photokina... I want to start anew rumor....)
Message from red735i at earthlink.net (Frank Filippone) ([Leica] Getting close to Photokina... I want to start anew rumor....)