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Alternative to contact printing 
Filip Lenrick  6:44 26 Sep 16 
Re: Alternative to contact printing 
David Jade  13:34 26 Sep 16 
Re: Alternative to contact printing 
Filip Lenrick  23:55 26 Sep 16 
Re: Alternative to contact printing 
Filip Lenrick  9:35 8 Oct 16 
Re: Alternative to contact printing 
Filip Lenrick  3:04 31 Oct 16 
In Phil Davis' BTZS Video Workshop (from 1992) Phil talks about "toe and flare" and why one cannot simply photograph a step tablet on a light table or similar. Camera flare will raise the toe too much and the computer software cannot work with the curves properly. I assume this logic would also apply to my earlier question if it was possible to sandwich the film and step tablet in a film holder.

However, in Ralph Lambrecht's and Chris WoodhouseWay's book "Way Beyond Monochrome" they advise you to photograph the step tablet using a film negative duplicator or similar.


 
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iPhone as a densitometer 
August Gresens  5:09 4 Feb 15 
Re: iPhone as a densitometer 
August Gresens  5:18 5 Mar 15 
PSP modification 
Ben Wilbur  10:27 2 Jul 14 
Modifying EFS in BTZS analysis 
Ben Wilbur  15:27 1 Jul 14 
Re: Modifying EFS in BTZS analysis 
David Jade  14:21 7 Jul 14 


BTZS.org >> Forums home page Last Updated: 22 Aug 2002