[Leica] IMG: M8 + Visoflex + 400 mm Telyt f:6.8

[len-001 at verizon.net (Leonard Taupier)]

The 6.8 Telyts are fantastic lenses. I just compared the 400mm Telyt  
to a new $5000 Nikon and the Telyt looks sharper to me. If I manually  
focus the Nikon it then looks the same as the Telyt. I generally try  
and eliminate the color fringes before I post a photo. Sometimes you  
can't. I don't get the fringing generally from the Nikon lenses and  
when I do you have to go 100% to see it.

Doug, I don't see the fringing on your photos. I'll take a closer  
look. Because I always see it on mine I thought my lens was faulty.

This photo I just uploaded was not adjusted for anything as an  
illustration only.

Len


On Dec 30, 2008, at 7:04 PM, wildlightphoto@earthlink.net wrote:

> Leonard Taupier wrote:
>
>> The problem is not with the M8 or lack of UV/IR filters.
>> Here is a photo taken with the 560mm Telyt and Canon 20d. Note the
>> out of focus edges behind the bird. I see this all the time with this
>> lens when shooting against a bright background. These lenses should
>> not have CA according to Erwin. But I think it's the lens. I just
>> don't know what.
>>
>> http://tinyurl.com/842ajl
>
> Note the color fringe on the top of the ram's nose & muzzle (this  
> was with
> the 560):
>
> http://www.wildlightphoto.com/mammals/artiodactyls/dash01crop.jpg
>
> I suspect it's a chromatic artifact of spherical aberation.  Makes  
> color
> fringes at high-contrast out-of-focus edges.  Did anyone notice it  
> on their
> 2008 calendar?  The f/6.8 Telyts are still among my favorites  
> despite this
> artifact.
>
> Doug Herr
> Birdman of Sacramento
> http://www.wildlightphoto.com
>
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