Black-and-White Conversion Using Photoshop Plug-ins
In addition to the built-in Photoshop tools we have already described, there are a number of plug-ins available that do a more professional job of simulating a real monochrome photographic workflow. These include Black & White Studio from Power Retouche  and Exposure 2 from Alien Skin Software . The Nik Software Color Efex suite  also includes some very nice black-and-white filters.
Black-and-White Conversions Using Silver Efex Pro
Our current favorite black-and-white conversion plug-in is Nik Software’s Silver Efex Pro. We will use it to convert the photo in Figure 10-33.
We optimize our color image and make sure that the top layer (where the filter will be applied) is a pure pixel ...