--- John Whittingham <[EMAIL PROTECTED]> wrote:
> I'm about to digitally archive my negs and slides from the
past 25+ years. 
> I've got the use (long term) of a Minolta Dimage Scan Dual and
a late version 
> of Vuescan, I'm familiar with the interface and I've been
experimenting with 
> the options available. Currently scanning at 48 bit TIFF, max
resolution 
> (8+mp) are there any alternatives available (software wise)?
Would I be 
> better scanning RAW? Any advice much appreciated before I
> start the job :)

SilverFast does a good job too, but I prefer Vuescan's
algorithms. And Vuescan is cheaper, can handle a ton of
different scanners if you decide to move to a different scanner
at some point. I use it to drive both a Minolta SDII and an
Epson 2450.

48bit TIFF (with LZW compression if you want to save space) and
the maximum optical resolution of the scanner are good (I am not
sure of the optical resolution of the Scan Dual, I have a Scan
Dual II and I know that's 2820ppi). 

Practice with a few scans first to get a feel for using the
controls on the Color tab to adjust white point, black point and
brightness, get into the ballpark. Remember that the goal of
scanning negatives or slides is to obtain as much GOOD data as
possible in order to enables image processing afterwards. I
never expect a scan to be perfect, it's just getting me the data
I need to then edit and finish with Photoshop. 

A couple of tips: 
- If you batch up your negs/slides into groups with similar
characteristics, you can then batch scan with one set of
settings more efficiently (up to strips of 6 negs or 4 slides
with that scanner, I believe). 

- If you want, you can tell Vuescan to save an index file along
with the scans. This will generate a horribly big .BMP file with
thumbnails in it, but you can open that with Photoshop and make
it into a JPEG. The index pages can be printed and used as a
proof sheet to help with filing the physical negatives. 

The advantage to scanning and saving RAW files in Vuescan is
that it will do much like a RAW format in a camera ... dump the
scanner's raw data out to a file ... which can then be
reprocessed many times with different rendering settings to get
a better scan. Much better than re-scanning the originals many
times, and a lot quicker. Of course, it costs more time and
space to save RAW files. Whether its worth it to you only you
can decide. (A lot of my negatives are archived digitally as a
Vuescan RAW file, a 48bit TIFF-LZW file, and an index page per
roll of film.) 

Scanning is a slow and tedious process, but I like having
archive copies of my negatives and prints that I can replicate
losslessly and manage electronically. 



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