This image was taken in an old farm house abandoned some time ago, and I though in black and white has more impact since a rich texture and high contrasting lighting.
Camera: EOS 50D
Lens: Canon EF-S 18-200 mm. @110 mm.
Aperture: 1/25 sec.
Aperture: f/22.
ISO : 400
Converted to B/W with Adobe: Setting the saturation to O, increasing the contrast with Adobe "brigthess/contrast" tool.