Digital BW, The Print

The typical scan back (Dicomed, Betterlight) work in single pass 
mode, but have trilinear sensors, ie one set of sensors each for RGB, 
similar to a film scanner, so I don't see where the interpolation 
comes in.
--
Quentin 

--- In DigitalBlackandWhiteThePrint@y..., Derek Clarke <derek_c@c...> 
wrote:
> There are several kinds of scanning backs!
> 
> Some use multiple passes, and so have "genuine RGB" pixels at the 
cost of not 
> being able to shoot moving subjects.
> 
> Others have single-shot sensors that are RGBG (or sometimes CMYG), 
and use 
> colour interpolation.
> 
> 
> On Thursday 17 Jan 2002 10:52 am, qdfb wrote:
> > Hmm, that raises an interesting point.  A scanning back operates 
like
> > a film scanner, with seperate RGB sensors scanning the image.  I 
have
> > not thought about this before, but I assume this means that there 
is
> > therefore no interpolation with a scanning camera back, so its
> > resolution should be regarded as 3 times that of an equivalent 
single
> > shot sensor.  Would that be right?
> >
> > Bit OT, but I'd be interested in the answer :-)