Archived posting to the Leica Users Group, 2009/03/22

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Subject: [Leica] Test Zeiss Jena Sonnar 2/85
From: hopsternew at gmail.com (Geoff Hopkinson)
Date: Mon, 23 Mar 2009 06:59:17 +1000
References: <7A64EA9E-EAF6-42EB-844D-BF6E8199FA3C@telefonica.net>

Lluis I can see the effect you mention in a couple of these. It is odd.
I do not think it is due to missing lenshood as the light doesn't look that
difficult.
I do not think it is a dirty lens as that would just reduce the contrast
everywhere.
I see nothing that looks like a sensor error either. (streaks, blobs, faulty
photosites)
My guess would be that it is an internal reflection in the lens for some
reason.
Maybe you could shoot some test shots of a plain black area and see if you
can detect a lighter grey area in the shot?
Please keep us informed if you find out the cause.



2009/3/22 Lluis Ripoll <luisripoll at telefonica.net>

> I've tested the lens on the M3 with TX at 400 ISO, I was veru surprised to
> appreciate a certain flare on the center of the negative, aybe it was 
> simply
> that lens was dirty, the lens has no signs of coating deterioration at all,
> maybe is a slight reflection of light due to the adaptor adjustement on the
> camera, the case is that the first picture could be in my opinion a good
> catch but I've can improve it, I  would like know your opinions, thanks in
> advance.
>
> http://photo.net/photodb/photo?photo_id=8813763
>
> http://photo.net/photodb/photo?photo_id=8813764
>
> http://photo.net/photodb/photo?photo_id=8813762
>
> http://photo.net/photodb/photo?photo_id=8813761
>
> http://photo.net/photodb/photo?photo_id=8813760
>
> Thanks for looking and your comments,
>
> Saludos cordiales
> Lluis
>
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
>



-- 
Cheers
Geoff
'Life's too short for mediocre glass'
http://gallery.leica-users.org/v/gh/a/
http://www.pbase.com/hoppyman


Replies: Reply from luisripoll at telefonica.net (Lluis Ripoll) ([Leica] Test Zeiss Jena Sonnar 2/85)
In reply to: Message from luisripoll at telefonica.net (Lluis Ripoll) ([Leica] Test Zeiss Jena Sonnar 2/85)