Canon lens with minimal distortion for copying technical d..

Archived from groups: rec.photo.digital (More info?)

"SimonLW" <nospam@donet.com> wrote:
> We have several 36x24" technical drawings to digitize. These have color
> and scanning to print is expensive. I performed a test and was surprised
> to find my digital rebel gives plenty of detail, but the 50mm 1.8 lens has
> some barrel distortion that makes the edges of the drawing bulge out a
> little. I need a lens with minimal distortion and high resolution at 10'
> focal distance for this work.

There are programs that will correct that distortion. For example:

http://epaperpress.com/ptlens/

Worth trying, at least. (I haven't tried it myself.)

David J. Littleboy
Tokyo, Japan

Archived from groups: rec.photo.digital (More info?)

On Tue, 20 Sep 2005 08:49:57 -0400, "SimonLW" <nospam@donet.com>
wrote:

>We have several 36x24" technical drawings to digitize. These have color and
>scanning to print is expensive. I performed a test and was surprised to find
>my digital rebel gives plenty of detail, but the 50mm 1.8 lens has some
>barrel distortion that makes the edges of the drawing bulge out a little. I
>need a lens with minimal distortion and high resolution at 10' focal
>distance for this work.
>
>Thanks for any ideas.
>-S
>

Look at the Canon Macro's particularly the 100mm.

http://www.fredmiranda.com/reviews [...] t=2&page=3




*********************************************************

"I have been a witness, and these pictures are
my testimony. The events I have recorded should
not be forgotten and must not be repeated."

-James Nachtwey-
http://www.jamesnachtwey.com/