For one, the spectral sensitivity profile of B&W film is different for each
brand/make. Just going diretly to monochrome in PS doesn't take into account
this subtle characteristic. You can use the channel mixer to do this to some
extent. Or you can buy silveroxide.com or other filters to mimic different
films' color curves. But the interaction of grain, developers, film base,
color sensitivity, and processing technique tends to produce something unique
that's difficult to fully reproduce with color-to-mono conversions.
Skip
>
>Subject: [OM] Tonality of B&W film
> From: Albert <olympus@xxxxxxxxxxx>
> Date: Tue, 18 Feb 2003 12:29:55 +0800
> To: olympus@xxxxxxxxxxxxxxx
>
>I just click, and I can make my pictures into B&W in photoshop...
>
>But I don't think it's my eyes, when I say, the tonality of "true" B&W
>film is MUCH better then that of color film made into B&W?
>
>Someone tell me a little bit more about B&W film please..
>
>Thanks.
>Albert
>
>
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