All lenses display some fringing on digital cameras (or CA if you
must, even though I'm not sure they're the same thing) . Whether or
not it's a problem comes down to a matter of degrees. The DA*16-50 is
among the best in my experience. Now that being said, there were
serious quality control problems with the lens, and some were
delivered with misaligned elements. That condition was immediately
recognizable as uneven focus across the frame. (I had to return my
first DA8 16-50, and I did so immediately.) But good copies of the
lens are excellent in every way.
Paul
On Mar 22, 2009, at 5:09 PM, David J Brooks wrote:
On Sun, Mar 22, 2009 at 1:22 PM, Joseph McAllister
<[email protected]> wrote:
On Mar 22, 2009, at 09:46 , Paul Stenquist wrote:
And here is a crop of the branches against the sky at 100%:
http://photo.net/photodb/photo?photo_id=8817201
There's some glow around the street lamp. Don't know that I'd call
it CA.
Speaking in purely technical terms and having examined it at a
pixel level,
I think I would categorize it as "glow."
CA
Items should be sharply focused to recognize as CA. But your lamp
and post
are only glowing red on one side, green intrusion on the other side
= CA.
The tree branches are overcome by bokeh.
Must be the ibook, but, i don't see this CA.
Dave
Joseph McAllister
Pentaxian
http://gallery.me.com/jomac
http://web.me.com/jomac/show.me/Blog/Blog.html
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