Don Williams wrote:
Right! I found out how to separate the channels in CS. But
unfortunately my filter seems to be unsuitable for the job. The blue
channel is very dark. The green is about half as dense as the blue.
The red channel is brightest of course, but looks nothing like the
picture Ralf posted, despite it's abundance of trees, bushes and
grass. The foliage is dark, exactly the opposite of what is expected.
So its back to square one. I need to find the correct filter -- 87C.
Ralf has located some for me in a German Dealer's list at about €22 or
so. That's a bit expensive for a square of gelatin. Glass ones don't
cost a lot more from Hong Kong. I shall not rush this I have plenty of
other things to occupy my mind at the moment.
Hi Don,
If you are on CS, its is simpler than if you are on Elements, which
doesn't have a channel mixer.
On CS2, I use an adjustment layer, but a straight adjustment works just
as well. Tick the monochrome box. Then dial down the red channel a bit,
and pump up the green and blue. How much, depends on the scene, but try
to keep the overall percentages adding up to 100%. I find I have to add
a bit more blue channel to get the detail definition. You can adjust the
Contant slider to help you here too. But I often have to add another
curve or levels adjustment layer to get the proper contrast. Again, it
really depends on the scene, and of course, your taste. Sometimes, I add
another duplicate layer on top with a touch of gaussian blur (and the
appropriate amount of transparency) to get that classic IR
no-anti-halation-layer look.
Post some pics so we can see how you go, ok?
D
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