Archived posting to the Leica Users Group, 2009/04/24

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Subject: [Leica] 21 mm Elmarit fringing
From: len-001 at verizon.net (Leonard Taupier)
Date: Fri, 24 Apr 2009 20:07:28 -0400
References: <aca72a432de8714276b743f5ae8d7756@cshore.com>
 
Douglas,

An uncoded 21mm lens with a UV/IR filter will give you the color  
fringing you describe.

Len


On Apr 24, 2009, at 6:37 PM, Douglas Nygren wrote:

> I have been using a pre-Asph 21mm Elmarit on the M8 and notice on  
> the edges a subtle shift to light blue.
>
> My assumption is that this may be caused by vignetting, but I may  
> be wrong. Has anyone else noticed it.
>
> A friend suggested that having the lens coded for the M8 might cure  
> this problem. Does anyone know whether that is true or not?
>
> My friend maintains that coding helps wide-angle lenses. True?
>
> I assume the Asph 21 does not have this problem, but that's an  
> assumption.
>
> Your help is appreciated, as always.
>
> Doug
>
>
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Replies: Reply from hopsternew at gmail.com (Geoff Hopkinson) ([Leica] 21 mm Elmarit fringing)
Reply from glehrer at san.rr.com (Jerry Lehrer) ([Leica] 21 mm Elmarit fringing)
 In reply to: Message from dnygr at cshore.com (Douglas Nygren) ([Leica] 21 mm Elmarit fringing)