Re: Printing anaglyph 3D

[T3D John Ohrt <johrt@xxxxxxx>]

T3D Dave Worrell wrote:

> I find that the glasses work well enough on the monitor -
> but not as well with printouts.

Monitors have a much graeter dynamic range.

 
> On a related note - has anybody used the transparency adapter sold by HP
> for their ScanJets? I can't afford to invest in a dedicated slide scanner
> (Nikon CoolScan etc.) but have a hard time believing the ScanJet could
> really do a decent job with a slide.

I have used 8x10 adapters on a scanner with comparable/superior(?)
technology.

For 8x10 negs and 10" format aerophoto you can sometimes get by.

For slides and negs such as 35 mm format, you really need a dedicated
scanner capable of at least 2000 pixels per inch and a channel depth of
8 bits (ie 7 bit accuracy).  Follow rec.photo.digital as well as the
scanner usegroups for assesments of current scanners.

So far, scanners for medium format and larger are quite costly relative
to 35 mm, but scanning services do exist.

Depending on your film and lens quality, you can "justify" 5200 pixels
per inch and 14 bit colour depth to scan negatives.

The street price of the HP photosmart scanner is under $500, and claims
2400 pixels per inch and 8 bit ACCURATE channel output from
hardware/firmware processing of a 10 bit scan.  I haven't seen output
from one and opinions do very.  Many complaints about the HP photosmart
are about the software.  While it permits a novice to produce acceptable
scans, no mean accomplishment, if does not permit an experienced user to
twiddle settings when the user disagrees with the software assessment. 
If you like the scanner, I sure hope you like windows 95 'cause there
are only drivers for windows 95.
  
FWIW, my experience suggests very few users know how to really operate a
scanner and far too often the software and manuals provided aren't much
help.  Start reading up on subjects like gamma, photoresponse, etc.  

Good luck,
John

--
John Ohrt,  Regina, SK, Canada
johrt@xxxxxxx



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