Digital BW, The Print

> Jon:  Two basic types of scans, transmission/transmissive and
> reflection/reflective.  Transmission means the light source is on one
> side of the transparancy/positive film/negative film and the detector
> is on the other--light passes through.  Reflective means the light
> source is on the same side of the opaque object as the measuring
> device(example photograph on flatbed scanner)--light is reflected
> back to the detector.
> 
> Martin is correct, transparancy is a confusing term.
> 
> Jeff Randall
> 


> Jon,
> 
> In photography that is generally true. However, scanning software always has
> two basic choices. Is the material to be scanned reflective or transmissive?
> With Silverfast the first choice is Transparency or Reflective and the
> second choice then is Positive or Negative.
> 
> Terms tend to take on slightly different connotations in different fields.
> 
> Martin