RE: How to translate log density readings to percent?

Yes it makes sense. I remember this from the book by Dan Burkholder
(this phenomenon was nicely covered with diagrams in the book)... It
makes more sense given I'm using bank of fluorescent tubes (extremely
diffused lightsource).

Regards,
Loris.

> -----Original Message-----
> From: Dave Soemarko [mailto:fotodave@dsoemarko.us]
> Sent: Wednesday, September 08, 2004 4:04 PM
> To: alt-photo-process-l@sask.usask.ca
> Subject: Re: How to translate log density readings to percent?
>
> ...
> Undercutting is when even the negative and emulsion are in
> close contact, you still might not get perfectly binary
> effect because the light is diffused (not collimated), so the
> light doesn't go through the dots in straight-line fashion
> but diffuse in every direction. I am not good at giving
> formal definition, but hopefully it makes some sense.
>
> Dave S
Received on Wed Sep 8 07:54:14 2004