Most Canon camera's (and I presume the other big brands) have a 'picture style' option which you can set to monochrome which provides instant feedback on how a

Most Canon camera's (and I presume the other big brands) have a 'picture style' option which you can set to monochrome which provides instant feedback on how a photo looks in B&W. The camera still takes a color RAW file so you can even experiment with color filters later.