[filmscanners] RE: Hi bit discussion

["LAURIE SOLOMON" <laurie@advancenet.net>]

Bob,

I am not challenging anything you have said since I am in agreement with it;
but I need some elaboration on one of your remarks: "(although you can
convert the file to 8bit, make a selection, save it, and then load it into
the 16bit original!)."  I think I know how one loads a selection in a file;
but can and how does one load an 8-bit selection into a 16bit file?  If and
when one does , does Photoshop automatically convert the 8bit selection back
to 16bit or does it convert the 16 bit file to 8bit to match the selection?

Moreover, what does performing this type of operation accomplish in
effecting the appearance of the image and does it work with all types of
operations or just a few?

I know about one of the links to information on this sort of procedure;
could you supply me with any links to references on what you are describing.
It would be most appreciated.  Thanks!

-----Original Message-----
From: filmscanners_owner@halftone.co.uk
[mailto:filmscanners_owner@halftone.co.uk]On Behalf Of Bob Frost
Sent: Sunday, September 21, 2003 3:55 AM
To: laurie@advancenet.net
Subject: [filmscanners] Re: Hi bit discussion


Andreas,

Because Photoshop has limited options that work with 16-bit images. For
example, you can't use layers in 16bit; you can't make selections directly
(although you can convert the file to 8bit, make a selection, save it, and
then load it into the 16bit original!); many filters don't work; dodge and
burn don't work; etc; etc.

There are ways round many of the problems, as indicated for selections, and
using the history brush allows a lot to be done.

Adobe say that making PS fully 16bit would require a massive amount of
rewriting that they don't have the staff for. So they add one or two 16bit
extras with each release. They will only do more if people demand it, and
not many do at present.

Bob Frost.

----- Original Message -----
From: "Andreas Siegert" <afx@muc.de>

Why are high bit worksflows harder and take more time? Because of the
Photoshop limitations? Wouldn't a 16bit clean program relieve you of these
hassles?

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