You may want to make photo black and white for blog, photo profile, or facebook. Since black and white photograph has image "oldies", then just need slightly editing so that it will add ancient impression to the photo. E.g. with add hazy color will make photo appear "old".
To make black and white photograph by using photoshop’s features, you can do in many ways. The quickest editing photo is by using feature grayscale. Although it is not really black and white photo, since there is still gray color on the photo, but it is enough to gives image "old impression". Or there is other trick with utilize channel's feature mixer, with revamp saturation's point.
There are many tricks to make black and white photograph, depend to the features that will be given. So it will need another feature in photoshop. For example as make photograph as sketch, one that constitute basic of painting, will use additional feature after photograph to be made by black and white on initial phase.
Following how to make photo black and white by using photoshop cs2:
Open photo which will be edited>> click image>> mode>> click grayscale, then appear discard color>> click OK, therefore photo have become black and white (rather gray).
Other trick is by using feature channel mixer. Open photo which will be edited>> click image >> adjustments>> click channel mixer. Then click monochrome >> arrange source channels on glide green and blue until up to black and white color or according to your wish.
Other trick is by using feature desaturate. Open photo which will be edited>> click image >> adjustments>> click desaturate, therefore photo have become black and white.
How to makes to photo black and white is a startup stage to make photo as sketch.