[rollei_list] Re: Scanners
- From: "Austin Franklin" <austin.franklin@xxxxxxxxxxx>
- To: <rollei_list@xxxxxxxxxxxxx>
- Date: Tue, 24 Nov 2009 08:33:59 -0500
Hi Stephen,
IF your TIFF file has setpoints already set, then it is significantly
different than a raw file. Once the setpoints are set, the data above and
below the setpoints is gone, and can not be gotten back. Which, may be
perfectly fine, but it may not be. Tonal curves applied to already
"processed" (as in having tonal curves previously applied) will degrade the
data, and cause data loss. You *REALLY* only want to apply tonal curves to
the data once. That is if you want your data to maintain as much fidelity
(accuracy of reproduction) as it can.
Some images can "suffer" a significant amount of data loss and still "look"
just fine, and others can not. But, adopting a workflow that works for all
images, I feel, is the better methodology.
Regards,
Austin
-----Original Message-----
From: rollei_list-bounce@xxxxxxxxxxxxx
[mailto:rollei_list-bounce@xxxxxxxxxxxxx]On Behalf Of Stephen Attaway
Sent: Tuesday, November 24, 2009 12:04 AM
To: rollei_list@xxxxxxxxxxxxx
Subject: [rollei_list] Re: Scanners
Hi Austin:
Ok. Personally, I save from both programs in tiff and then use the tiff as
the bottom layer in a photoshop file.
If anybody feels 'scanner raw' is better than a 16 bit tiff, please
enlighten us as to why.
From: Austin Franklin
Sent: Monday, November 23, 2009 4:02 PM
To: rollei_list@xxxxxxxxxxxxx
Subject: [rollei_list] Re: Scanners
Hi Stephen,
I don't know what he (Ed Hamrick, author of Vuescan) is referring to
there, but it's simply wrong, unless it's in some other context. Raw data
has been around LONG before Vuescan, and probably before Ed had any interest
in writing scanner software.
It's almost silly to think that it's somehow "special" to get at the raw
data. The scanner actually has to purposely not support raw data, vs, have
embedded hardware and firmware to process the raw data to some "standard"
image file format.
Raw files were also termed by some "HDR" for High Dynamic Range a ways
back.
Regards,
Austin
-----Original Message-----
From: rollei_list-bounce@xxxxxxxxxxxxx
[mailto:rollei_list-bounce@xxxxxxxxxxxxx]On Behalf Of
stephen@xxxxxxxxxxxxxxxxxx
Sent: Monday, November 23, 2009 4:07 PM
To: rollei_list@xxxxxxxxxxxxx
Subject: [rollei_list] Re: Scanners
"Raw files can be written with VueScan and NikonScan, but can't with
other programs."
-from the Vuescan faq page.
Es verdad. I've done it with both.
-----Original Message-----
From: Peter K. [mailto:peterk727@xxxxxxxxx]
Sent: Monday, November 23, 2009 02:10 PM
To: rollei_list@xxxxxxxxxxxxx
Subject: [rollei_list] Re: Scanners
RAW? You cannot scan RAW files or scan to RAW. Those are proprietary
files that a Digital SLR creates and you use Adobe Camera Raw to open,
adjust and then save them as JPEG or whatever file you want, except RAW.
On Sun, Nov 22, 2009 at 12:03 PM, Mark Rabiner <mark@xxxxxxxxxxxxxxxx>
wrote:
> I tend to mess around rather a lot and change scan settings and
re-scan. I
> could get about 2 scans I was satisfied with per evening. I
haven't scanned
> anything for months but i have my last roll of kodachrome to do...
> Frank
Try scanning raw.
Less messing around. But really mainly good if you've kept your
Photoshop
chops up through the years. As scanner interfaces and software
changes but
Photoshop is still Photoshop.
Mark William Rabiner
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