Re: dark sky

[George L Smyth <GLSmyth@xxxxxxx>]

KUET EE FOO wrote:
> 
> Hi, I am new to infra-red photography and I have just tested my first
> infra-red b/w film. I used Kodak HIE infra-red film, rated at iso 400,
> with #25 red filter.
> 
> I have seen pictures of landscape which the sky is very dark. I took
> some shots which also included the blue sky, but the result is only dark
> grey.
> 
> I like to know whether the dark sky is obtained by burning-in in the
> darkroom or there is something that I need to do when shooting.

I could be either.  You will be able to obtain these results if you keep several
things in mind.  You will need to shoot on a day when the sky is blue, not the
wishy-washy blueish-white we so often have here in Maryland.  The use of a
polarizer is very useful in helping to darken the sky.  You will have the best
results if the sun is 90 degrees to the the image - so it should be on your left
or right shoulder.  Of course, I am assuming that you are using a #25 filter. 
This should work well, though, as I said, you do need a deep blue sky to start
off.

george


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Handmade Photographic Images
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End of Infrared-Digest V0 #603
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