Archived posting to the Leica Users Group, 2007/12/13

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Subject: [Leica] Consensus (? on LUG) on IR filters on M8
From: imagist3 at mac.com (Lottermoser George)
Date: Thu Dec 13 07:13:14 2007
References: <002e01c83d7b$d40617e0$6400a8c0@corp.nortel.com>
 
In my experience:
        Wide angle lenses are best served by using the filter if you're  
after good color with a minimum of fuss in post processing; as well  
as avoidance of the cyan vignette.
        It's been difficult for me determine if the coding/filter  
combination significantly improves an image over filter/without  
coding. I have an uncoded 35 lux asph which does very well with the  
filter to improve color rendering and vignetting.
        Longer lenses have fewer issues - yet, if color is the aim - use of  
filter can decrease time in post processing.
        I've not seen any significant image degradation from use of the 
filter
EXCEPT - when strong light sources appear in or near the frame. Then  
the "reflected source" issue arises.

Regards,
George Lottermoser
george@imagist.com
http://www.imagist.com
http://www.imagist.com/blog
Picture A Week - www.imagist.com/paw_07




On Dec 13, 2007, at 5:32 AM, Vick Ko wrote:

> I've searched the archives a bit, and get the perception:
> *     using the filter does degrade the image slightly
> *     it does work, but the magenta flaw happens only under pretty severe
> conditions anyway
> *     for the majority of photo conditions, the filter isn't necessary
In reply to: Message from vick.ko at sympatico.ca (Vick Ko) ([Leica] Consensus (? on LUG) on IR filters on M8)