Convert to Black and White

This may sound a dumb question but here goes
I would like to take some shots in B&W can I change the camera settings to do this or should I change the images on photoshop?
Ive read the manual but cant seem to find it in there
I would like to take some shots in B&W can I change the camera settings to do this or should I change the images on photoshop?
Ive read the manual but cant seem to find it in there