Digital BW, The Print

Ginny  -
   
  Your'e scanning at 1x/16bit or 16x/16bit will produce the same file size and resolution.  The 1x vs. 16x is just the number of passes the scanner makes during the scan.  The multiple scan capability is to help reduce/eliminate noise in the dark areas in the final scan, the higher the number of passes the less noise.  Multiple passes are only useful on very dense areas of the film.
   
  You will see a difference between 8 bit and 16 bit scans in gradation.  The amount of detail you capture is a result of the ppi setting on the scanner, the higher the setting, the more detail you capture.
   
  As far as storage, if quality is of great importance, ALWAYS store you original scans as 16 bit.  Once you reduce it to 8 bit the data that is lost on the conversion from 16 bit to 8 bit is forever lost.
   
  Tom Baker

ginnylady33 <ginnylady33@...> wrote:
    I've been scanning via my 9000 at 16 bits but ultimately burning
files onto Gold CDs for storage at 8 bit. It saves much space. I'm
wondering if this is an error in judgment.
I know from experience that, at times, something that you'd expect to
be a 'better methodology' may not be. For example, I've done detailed
testing with my 9000 scanning B&W negs at 1x/16 bit vs 16x/16 bit
superfine mode. (Which takes forever to scan)
  Truthfully, there was no discernible difference in the scans at any
magnification. I was stunned by this and called over a friend who is a
computer graphics whiz to evaluate the scans without telling him which
was which. In a nutshell, he could not tell the difference though he
felt the 1x scan showed a tad more contrast and (!) a tiny bit more
detail.
  Makes no sense, huh? Perhaps there'd be more of a difference with
color scans. (shrug)
  So, back to my question regarding file storage on CDs at 16 vs. 8 bit.
  Also, do most of you store in PSD or TIFF format?
   Thanks
   Ginny





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