Lynn Allen wrote:
>
> Thanks, Art. So as I see it from your diagram, there *could* be a light
> fall-off outside the areas seen most clearly by the lens. I don't know how
> that would be measured, but with the Yellow Stain phenomenon, it's clearly
> in Kelvins, since it goes to yellow from what
ffect
the red part of the spectrum least, and blue part most.
Best regards--LRA
>From: Arthur Entlich <[EMAIL PROTECTED]>
>Reply-To: [EMAIL PROTECTED]
>To: [EMAIL PROTECTED]
>Subject: Re: filmscanners: Stains and Grains (was Yellow Stain)
>Date: Sun, 08 Jul 2001 03:06:43 -07
Lynn Allen wrote:
>
> Hi Frank,
>
> OK, then that would mean that the sensor array is vertical to the line of
> travel, and the scan is horizontal, as we thought, and that makes sense. Now
> optics *could* cause light drop-off, but frankly I don't quite understand
> how that mechanism works, e
eep us plugged in--LRA
>From: "Frank Nichols" <[EMAIL PROTECTED]>
>Reply-To: [EMAIL PROTECTED]
>To: <[EMAIL PROTECTED]>
>Subject: RE: filmscanners: Stains and Grains (was Yellow Stain)
>Date: Fri, 6 Jul 2001 12:59:52 -0600
>
>Lynn,
>
>No, the light sou
; <[EMAIL PROTECTED]>
>Reply-To: [EMAIL PROTECTED]
>To: <[EMAIL PROTECTED]>
>Subject: RE: filmscanners: Stains and Grains (was Yellow Stain)
>Date: Fri, 6 Jul 2001 12:59:52 -0600
>
>Lynn,
>
>No, the light source and the CCD remain stationary while the carrier mo
EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Lynn Allen
Sent: Friday, July 06, 2001 11:19 AM
To: [EMAIL PROTECTED]
Subject: RE: filmscanners: Stains and Grains (was Yellow Stain)
Frank wrote:
>The light source is a single small light tube (3/16" x 2 1/2" about) and it
>is
my Scanwit apart, so thanks for doing this. It's clear
that the techs at Acer (or anywhere else, for that matter) are not going to
volunteer the information.
Best regards--LRA
>From: "Frank Nichols" <[EMAIL PROTECTED]>
>Reply-To: [EMAIL PROTECTED]
>To: <[EMAIL PR
Sorry, I thought I had replied to him directly.
8-7
> -Original Message-
> From: Oostrom, Jerry [SMTP:[EMAIL PROTECTED]]
> Sent: Friday, July 06, 2001 8:30 AM
> To: '[EMAIL PROTECTED]'
> Subject: RE: filmscanners: Stains and Grains (was Yellow St
> -Original Message-
> From: Alan Tyson [SMTP:[EMAIL PROTECTED]]
> Sent: Friday, July 06, 2001 5:18 AM
> To: [EMAIL PROTECTED]
> Subject: Re: filmscanners: Stains and Grains (was Yellow Stain)
>
[Oostrom, Jerry] []
> So if it's only occasiona
, July 06, 2001 12:40 AM
> To: Filmscanners@Halftone. Co. Uk
> Cc: Jerry Oostrom; Lynn Allen
> Subject: RE: filmscanners: Stains and Grains (was Yellow Stain)
>
> WARNING: The following is a rather long discussion of the "yellow stain"
> effect seen on ACER Sca
[EMAIL PROTECTED]>
Cc: Jerry Oostrom <[EMAIL PROTECTED]>; Lynn Allen
<[EMAIL PROTECTED]>
Sent: Thursday, July 05, 2001 11:40 PM
Subject: RE: filmscanners: Stains and Grains (was Yellow
Stain)
> WARNING: The following is a rather long discussion of the
"yellow stain"
> effect seen on ACER Scanwit 2720s reported here a week or
so ago...
WARNING: The following is a rather long discussion of the "yellow stain"
effect seen on ACER Scanwit 2720s reported here a week or so ago. I am
posting this in hopes of getting more details on the actual working of the
scanwit from someone "in the know" - such as optics, sensor design, etc. If
you
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