[Leica] 400mm f6.8 Telyt problem

[hoppyman at bigpond.net.au (G Hopkinson)]

Len, could you post an example of the vignetting that you are reporting with 
the 28 Summicron? I have that lens and am thrilled with
its performance. I haven't noted vignetting, using the supplied hood. Lenses 
as you would know will have some fall off towards the
corners, especially wide open as a natural optical effect. I find this most 
visible in an expanse of bright sky and you can see it
in some of the gallery examples. Perhaps we are talking about the same 
thing?  
<http://gallery.leica-users.org/v/gh/a/Tas/Ta11.jpg.html>
<http://gallery.leica-users.org/v/gh/a/Tas/PA8.jpg.html>

Actually I often add some slight burning in the corners with photokit. In 
any event you have committed the heinous crime of
questioning the superlative performance of one of my favourite lenses ;-)
Alternatively, please send me all of that delicious gear on your list and I 
will test it all out for you.
Cheers
Hoppy

-----Original Message-----
From: lug-bounces+hoppyman=bigpond.net.au@leica-users.org 
[mailto:lug-bounces+hoppyman=bigpond.net.au@leica-users.org] On Behalf Of
Leonard Taupier
Sent: Monday, 15 January 2007 23:17
To: Leica Users Group
Subject: Re: [Leica] 400mm f6.8 Telyt problem

Ah yes. But now we have a very special body, the M8, that will do  
things that no other M can do. I already have the parts in place, a  
Viso III, a bellows II, the UOOYW adapter with the EL Nikkor  
attached. I've been practicing on the M6 body. Works like a champ.  
This is for UV and IR photos. To me kludgey means fun.
As for the Telyt I will mount it on a Canon EOS body with the R-EOS  
adapter. That will give me AE and a 640mm telescope (ref to film).  
Now if you could find me a viso tube I could use it on my Nikon  
bodies as well. I think the Telyt's are getting hard to find and  
that's what's driving the high price. Check out Tamarkin.

With the M8 I'll be using the WA lenses more then ever. I have the  
21, 24 and 28mm Elmarit (non-Asph). All were bought new. I still have  
the boxes, etc. Still look new. The 28 might become available as it's  
duplicated on my Tri-Elmar. I can't commit until after the M8 gets a  
workout.

As for the 28mm. My son bought the 28/2 Summicron. He now wishes he  
had my Summarit. He's bothered by the vignetting of the Summicron. He  
just spent the better part of an evening correcting shots taken in  
the Utah canyons. Lots of clear blue sky.

Len