U of S | Mailing List Archive | alt-photo-process-l | Re: curve

Re: curve

When the curved line falls below the straight line, you do it backwards.
(That is: Change the order of following the points.)

Hope this helps,

22 Nisan 2009, Çarşamba, 1:34 am tarihinde, Weber, Scott B yazmış:
> I am getting back into PDN negatives and have started working on a curve
> for van dyke, can someone refresh my memory how to interpret data that
> falls below the straight line on the curve value locator. I remember using
> the pink rectangle to measure the values above the straight line but I
> have some values below the line. How do I use the rectangle to measure
> them? I have attached an example.

  • References:
    • curve
      • From: "Weber, Scott B" <sweber@mail.barry.edu>