Archived posting to the Leica Users Group, 2009/04/28

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Subject: [Leica] Elmarit 21mm color fringing
From: don.dory at gmail.com (Don Dory)
Date: Tue, 28 Apr 2009 22:49:56 -0400
References: <9c5fdcc60fec7049ccf077264479de6d@cshore.com> <C61A56E4.4D65B%mark@rabinergroup.com> <36172e5a0904261616l1c2b823br56328345bfb21c8d@mail.gmail.com>

Hi Geoff,
The 21 Super Angulon F3.4 is very usable on an M8.  You do have to use the
histogram as a light meter but otherwise does very nicely.

On Sun, Apr 26, 2009 at 7:16 PM, Geoff Hopkinson <hopsternew at 
gmail.com>wrote:

> Mark as I understand it we were talking about 3 possible issues, which
> were:
> Light fall off towards the edges of the frame The pre ASPH. Elmarit shows
> 2.5 stops vignetting, the same as the ASPH. version
> The Angulons look to have more than that and further, being non-retro focus
> have deeply intruding rear elements. I looked at some and was not confident
> that they would be usable on the M8 at all. I did not try it.
> Possible colour fringing (from chromatic aberration???).  Doug Herr tells
> us
> that this is more an issue with teles.
> A cyan corner effect. This can occur with any wide angle on the M8 when the
> UV/IR filter is used. Equally applicable to all of the wider lenses.
> When the lens is coded and the camera set to detect the lens with filter,
> the camera firmware corrects this.
> .
> 2009/4/27 Mark Rabiner <mark at rabinergroup.com>
>
> > Curious if the current ASPH version of the Elmarit 21mm has had any of
> > these
> > issues.
> >
> > The lens in question the pre APSH 21 is the single most hotly critized
> > widely regarded DOGS in the history of any Leica M lineup. An
> > embarrassment.
> > You'd use the SA 3.4 that was until the ASPH came out which was widely
> > regarded as a landmark optic.
> >
> > With the excepted of two maybe one people on the LUG who swear by their
> pre
> > apshs have we seen images? This comes up on the LUG every 3 years.
> >
> > I'd use a Cosina Voigtl?nder 21 WAY before I'd use the pre apsh Elmarit
> 21.
> >
> > Mark William Rabiner
> >
> >
> >
> >
> >
> >
> > _______________________________________________
> > Leica Users Group.
> > See http://leica-users.org/mailman/listinfo/lug for more information
> >
>
>
>
> --
> Cheers
> Geoff
> 'Breathe In, Breathe Out, Move On'
> http://gallery.leica-users.org/v/gh/a/
> http://www.pbase.com/hoppyman
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
>



-- 
Don
don.dory at gmail.com


Replies: Reply from mark at rabinergroup.com (Mark Rabiner) ([Leica] Elmarit 21mm color fringing)
In reply to: Message from dnygr at cshore.com (Douglas Nygren) ([Leica] Elarmit 21mm colof fringing)
Message from mark at rabinergroup.com (Mark Rabiner) ([Leica] Elmarit 21mm color fringing)
Message from hopsternew at gmail.com (Geoff Hopkinson) ([Leica] Elmarit 21mm color fringing)