Thanks Bill, appreciate your help.
Regards, Alex
-----Original Message-----
From: owner-filmscanners@halftone.co.uk
[mailto:owner-filmscanners@halftone.co.uk]On Behalf Of Bill Fernandez
Sent: Wednesday, October 03, 2001 23:12
To: filmscanners@halftone.co.uk
Cc: filmscanners@halftone.co.uk; Israel Shapiro
Subject: RE: filmscanners: Canon's scanner
At 8:15 PM +0200 3-10-01, Alex Z wrote:
>I've heard and read in various reviews about LS4000ED's focusing
>problems at the frame edges...can you confirm that ?
BF: Yes. Many of my slides are 20 year old Kodachromes with visible
curvature. Some (but not all) have a pronounced depth of focus
problem. It's easy to test: NikonScan has a focus-point tool that
lets you click anywhere on the preview image to make the scanner
focus on that point. If you set your preferences to auto-focus
whenever you set a new focus point you can see the numerical value of
the manual focus slider change each time it auto-focuses. On a
problem slide all you have to do is set the focus point on the center
and do a scan then set it on an edge or corner and do a scan. The
results are crystal clear: the scan is sharp where you set the focus
point (e.g. in the corner) and fuzzy at other places (e.g. in the
center).
>It would be interesting to compare dynamic ranges of FS4000US and SS4000
>though...
BF: The shadow detail (and by implication the dynamic range) on the
Polariod was noticeably better.
--
======================================================================
Bill Fernandez * User Interface Architect * Bill Fernandez Design
(505) 346-3080 * bill@billfernandez.com *
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