Re: Poor TIFF Performance (Regardless of Default App)

Hi John,

Thanks very much for your reply and for the helpful link. I think I am going
to order the book!

The reason I have been scanning at 6400 ppi is that the "native" optical
resolution of my new Epson Perfection V500 scanner is 6400 ppi. I have been
advised that the best results are obtained by scanning at the optical
reolution of the scanner and then downsizing if necessary. Photoshop also
mentions this in its Help pages.

Also the V500 is very fast and even scanning such huge files only takes a
few minutes - even when using Digital Ice, so it's not much hardship. The
scanner will interpolate to 12800 but I can't see the point of that!

I think that it is a bit of a catch 22 as if I scan at 6400 and then
downsize, there will be throwing out of information. If I scan at a lower
resolution, it seems from reading the article in the link, that there will be
a downsampling by the scanner.

I have just read in the Photoshop manual that Photoshop "only" supports up
to 300,000 x 300,000 pixels. My 1GB file is 13525 x 13290 so it's not that,
it seems.

I think the problem is something to do with the huge file sizes though and I
cannot so far find a way of allowing the files to be accepted. They just will
not work in the Office picture applications.

I think I will just have to scan at lower resolutions. Lower res scans do
work.

Best wishes,

John


"John Inzer" wrote:

jrsjs wrote:
I am also having a problem opening Tiffs. My new scanner at 6400 ppi
makes 1GB files. They will not open in Microsoft Office Picture
Manager or Fax and Picture viewer. Just a little central cross
appears.
They seem to open in Photoshop CS3 but will not open from Bridge in
Camera Raw.
Hoping someone can help.
Thanks,
John
===============================================
Just wondering why you would
scan at such a high resolution?

Maybe the following site will offer
useful ideas:

A Few Scanning Tips
http://www.scantips.com/

Photographic Resolution
How much can we scan?
http://www.scantips.com/basics08.html

--

John Inzer
MS Picture It! -
Digital Image MVP

Digital Image
Highlights and FAQs
http://tinyurl.com/aczzp

Notice
This is not tech support
I am a volunteer

Solutions that work for
me may not work for you

Proceed at your own risk



.

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