Archived posting to the Leica Users Group, 2010/08/28

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Subject: [Leica] IMG: Eliminating Chroma
From: hopsternew at gmail.com (Geoff Hopkinson)
Date: Sun, 29 Aug 2010 08:48:43 +1000
References: <CEDFD8C110F74328A0904A10CB8CB1AD@jimnichols> <99EA319C-874D-4FF5-95DA-61909DEB6ABC@mac.com>

http://toothwalker.org/optics/chromatic.html

Cheers
Geoff
http://www.pbase.com/hoppyman


On 29 August 2010 05:13, George Lottermoser <imagist3 at mac.com> wrote:

> The aberrations we're discussing
> generally occur along edges of high contrast;
> as your original image had;
> or twigs against bright sky, etc.
>
> Regards,
> George Lottermoser
> george at imagist.com
> http://www.imagist.com
> http://www.imagist.com/blog
> http://www.linkedin.com/in/imagist
>
>
>
>
>
>  On Aug 28, 2010, at 1:03 PM, Jim Nichols wrote:
>
> > George,
> >
> > I decided to try the 35 Macro on the E-1, which causes me to change two
> variables.  First, no flash is involved. Second, the E-1 uses a Kodak
> sensor.  I see no signs of the chroma problem in this example, or others
> that I examined.
> >
> > I now suspect that the fill flash, on the top of the camera, could
> contribute to the top edge problem.  But it sure allows me to get insect
> images that I cannot get without it. :~((
> >
> > http://gallery.leica-users.org/v/OldNick/Rose+of+Sharon.jpg.html
> >
> > Comments and critiques welcomed.
> >
> > Jim Nichols
> > Tullahoma, TN USA
> >
> > _______________________________________________
> > Leica Users Group.
> > See http://leica-users.org/mailman/listinfo/lug for more information
>
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
>


Replies: Reply from jhnichols at lighttube.net (Jim Nichols) ([Leica] IMG: Eliminating Chroma)
In reply to: Message from jhnichols at lighttube.net (Jim Nichols) ([Leica] IMG: Eliminating Chroma)
Message from imagist3 at mac.com (George Lottermoser) ([Leica] IMG: Eliminating Chroma)