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DPChallenge Forums >> General Discussion >> In Photoshop, when using....
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01/07/2008 11:36:26 PM · #1
....a color filter, similar to filters put on the lens for black and white photography ( red, yellow, green, blue), will PS give the same/similar effects?


01/07/2008 11:55:38 PM · #2
Sort of...

If you like Filter Sims check out the free Opanda Photo Filter. Tries to simulate popular hoya/kodak/cokin filters.
01/08/2008 06:45:45 PM · #3
OPanda doesn't seem to work. Or, I can't make it work.

Is there any other opinions?
01/08/2008 08:52:18 PM · #4
A bump on my OP.
01/08/2008 09:07:33 PM · #5
Originally posted by Man_Called_Horse:

OPanda doesn't seem to work. Or, I can't make it work.

Is there any other opinions?


Yes, if you use a "red filter" it gives similar results to a red filter in B/W. Opanda ought to work. It always worked for me. CS3 has filters in the image/adjust/BW menu, and they work too.

R.
01/08/2008 09:14:32 PM · #6
I don't have CS3....yet.

thanks.
01/08/2008 09:17:19 PM · #7
Originally posted by Man_Called_Horse:

I don't have CS3....yet.

thanks.


Use channel mixer; that's all the filters do. All red channel = dark red filter. All blue channel = dark blue filter. Etc etc. Mix 'em up in proportions to get variations.

R.
01/08/2008 09:21:17 PM · #8
Also, the standard color filters were already there in CS2, if that' what you're using. They are under Image>Adjustments>Photo Filter. They hid 'em.
01/08/2008 09:47:47 PM · #9
Originally posted by kirbic:

Also, the standard color filters were already there in CS2, if that' what you're using. They are under Image>Adjustments>Photo Filter. They hid 'em.


Yeah, I knew that, just wanted more info, and knowledge base of possibilities.

Thanks.
01/08/2008 10:01:09 PM · #10
Originally posted by Bear_Music:

Originally posted by Man_Called_Horse:

I don't have CS3....yet.

thanks.


Use channel mixer; that's all the filters do. All red channel = dark red filter. All blue channel = dark blue filter. Etc etc. Mix 'em up in proportions to get variations.

R.


^this is the best method of b&w conversion^
01/08/2008 10:24:25 PM · #11
Originally posted by Dan_Cottle:

Originally posted by Bear_Music:

Originally posted by Man_Called_Horse:

I don't have CS3....yet.

thanks.


Use channel mixer; that's all the filters do. All red channel = dark red filter. All blue channel = dark blue filter. Etc etc. Mix 'em up in proportions to get variations.

R.


^this is the best method of b&w conversion^


I wasn't asking about conversions, but if there is an actual effect when adding colored filters in PS.
01/08/2008 11:28:39 PM · #12
So are you asking if "adding a red filter" in photoshop gives the same effect, in color, as mounting a red filter on the lens does for color film? I would think it does, though I've never really tried it. Using a red filter on the lens results in eliminating most of the light received from the not-red portions of the spectrum; the amount eliminated, of course, will depend on just how deep a red the filter is. Using a red filter in photoshop, as far as I can see, does the same thing to the light delivered to your monitor, and you can fade it to alter the "opacity" of the red...

Unless I'm missing something?

R.
01/09/2008 12:38:47 AM · #13
Originally posted by Bear_Music:

So are you asking if "adding a red filter" in photoshop gives the same effect, in color, as mounting a red filter on the lens does for color film?

R.


BINGO!!

I would think it does as well, but just tried it.

I can not tell yet without doing some testing.

But, I thought I would ask here to see if someone might be more inclined than I am.

Thanks.
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