There are are severl dozens of ways to do black and white conversions in various image editing programs. Entire books are devoted to the subject. But when I’m working in a Aperture 2.0, I start with the two basic settings described below.
The original color version.
My Preset for Monochrome Adjustment
My Preset for Sepia Tone
I like adding a touch of Sepia to my monochrome version in order to get rid of the stark grayscale conversion of my images. This particularly works well for portraits. Sometimes, when I’m not satisfied with the results, I use options in Photoshop.
The Monochrome Version
My monochrome version combines a mix of monochrome and a mix of sepia. See the presets I use for for both below.