Screw on filters for Black and White photography

[rokoma]

I need info on filters for black and white photography (ie) red filters for increased saturation of clouds and sky, green filters for male portraiture and red filters for female portrature, etc. Any help would be appreciated. Thanks. Ron

 

[motcon]

already posted here:

http://www.thephotoforum.com/forum/viewtopic.php?p=15121&highlight=#15121

please do a search before asking. thanks.

 

[motcon]

this may be of some help as well:

http://motionless-continuum.com/tpf/image.jpeg

i'm NOT the creator of this...and i have forgotten who did the test. credit to whomever did it.