Digital BW, The Print

Steve,  If the Green layer (or any topmost layer for that matter) mode
is set to normal it will be completly opaque when set to 100%, thereby
obscuring any and all layers beneath.  As you decrease the opacity of
the top layer more of what lies beneath is allowed to show through.

Jeff

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Steve Kale
<stevekale@b...> wrote:
> Perhaps it would help if I am more explicit about what I am
seeing/doing.  I
> copy the red and then green layers to the blue doc, duplicate the
blue
> background layer and rename it blue, and then delete the background
layer so
> that I end up with a doc with 3 layers only (no background): blue,
red,
> green from bottom to top.  When I view the layers one by one I note
that
> they are very different.  I can see the impact to the doc if I
select just
> the blue to be visible and then click to add the visibility of the
red and
> green.  I see no change to the doc if I subtract the visibility of
layers
> under the green (ie turning off first red then blue) unless green
(the top
> layer) is less than 100%.  So really the red and blue channels are
being
> allowed to only play a very small part ­ and then only if green
is
less than
> 100%.  Am I just doing something wrong here?
> 
> 
> From: stevekale@b...
> Reply-To: DigitalBlackandWhiteThePrint@yahoogroups.com
> Date: Wed, 17 Dec 2003 16:25:43 -0000
> To: DigitalBlackandWhiteThePrint@yahoogroups.com
> Subject: [Digital BW] Split channels B&W conversion
> 
> I would like to thank Mitch for his tutorial on using Split
Channels to
> convert to B&W.  
> This certainly seems to be a very powerful method and one that I
intend to
> use from 
> now on.  As I explore this method I would very much appreciate a
number of
> very 
> basic pointers.  Mitch has mentioned in a posting here that 5-10%
for Blue,
> 65-80% 
> for Red and 90-100% for Green provides him with good initial
results.  In
> his tutorial 
> he mentions using Pin light on the Blue channel to provide greater
contrast.
> I know 
> this is a massively broad question but could someone help me along
my way by
> telling me what to expect from increasing/decreasing the % of a
particular
> colour 
> channel and changing the type of blend mode for a layer.  I know
this delves
> into the 
> heart of using PS but I am torn between having to methodically study
how to
> use PS 
> better and getting good use out of it now.
> 
> Thanks in advance
> 
> Steve
> 
> PS:  Alan also mentioned copying the Luminosity channel after a
conversion
> to LAB 
> colour and using this also.  I assume he meant the Lightness
channel.  Any
> suggestions for weighting/inclusion of this also?
> 
> 
> 
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