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06/23/2004 12:21:25 AM · #1 |
OK, I have a HOYA red polariser from my B&W film work a couple of years ago. This filter had the same effect as Ilfords SFX 400 B&W film.
What is the effect on contrast after I convert my red-washed colour digital image to grey-scale?
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06/23/2004 12:23:25 AM · #2 |
Originally posted by wimbello:
OK, I have a HOYA red polariser from my B&W film work a couple of years ago. This filter had the same effect as Ilfords SFX 400 B&W film.
What is the effect on contrast after I convert my red-washed colour digital image to grey-scale? |
The effect should be roughly the same as shooting in full-color, then using the channel mixer to throw out the green and blue channels.
-Terry
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06/23/2004 12:31:00 AM · #3 |
Originally posted by ClubJuggle:
The effect should be roughly the same as shooting in full-color, then using the channel mixer to throw out the green and blue channels. |
And then, I presume, convert to greyscale after channel mixer.
I figured you could do something like that, but wasn't exactl sure, and not sure of amount. The Red filter used give me a perfect amount of contrast boost.
I suppose there's only one way to find out. pull the finger out and test it out.!
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