Digital BW, The Print

Hi David,

I don’t measure the actual negative densities, but I do know that I’ve yet to create a neg with an area of density that the V700 can’t scan.  But that arises from the way I process my film.  I don’t overcook my film to produce impenetrable densities.

Steve Gledhill

www.virtuallygrey.co.uk <http://www.virtuallygrey.co.uk/> 

 

From: DigitalBlackandWhiteThePrint@yahoogroups.com [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf Of David Whistance
Sent: 07 October 2008 22:21
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: RE: Subject Brightness Range - branch from [Digital BW] Re: Getting reasonable scan file sizes w/ MF & LF ...

 

I'm not sure where this comes from. 16 bits of data gives 2 to the power of
16 shades of grey, ie 65,536 of them. Should be plenty to divide by 17
stops, particularly as the relationship between a stop and a set of shades
of grey is arbitrary - you can map them how you like with either the scanner
software or Photoshop. What does surprise me is that Steve gets this from
an Epson V700, however I've seen some of his images and he does undoubtedly
capture a very large SBR with detail at both ends so I'm sure he's right.

David Whistance 



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