Digital BW, The Print

Paul:

I've found that by far the easiest way to place points on the curve 
is by using the mouse to click on the image.  With the grayscale 
wedge open in Photoshop I load a Roark curve.  Before applying the 
now loaded curve, if (on a Mac) you hit Command/Option and click on 
say the 80% density point in the grayscale image [I think it's 
command + option + click, just experiment, it works], Photoshop 
places a point on the curve in the curve dialogue box at where the 
80% point currently is in the curve.  Then, once you have the current 
location of 80% marked on the curve, either a) type in the new output 
value, or b) use the cursor keys to push the curve in a particular 
direction.  This is much easier than using a mouse to place and move 
points on a curve and allows you to place curve points in very fine 
increments.  Occasionally you may want to place a point on the curve 
that is too close to a point that already exists, and then you'll 
need to remove the pre-existing point before the above clicking 
method works.

--- In DigitalBlackandWhiteThePrint@y..., "Paul Roark" 
<paul.roark@v...> wrote:
> To move a point, one must click on it.  The problem is that the 
point tends
> to move.  So, be very careful to hold the mouse still when clicking 
on the
> point.  I often use both hands on the mouse to hold it.  I also 
have my
> mouse speed on the second slowest setting.  If you think the point 
has
> moved, hit Edit and see if the Redo is highlighted.  If it is not
> grayed-out, you've moved the point.  Just hit Redo and try again.