To add some food for those who like experiments here an example of a macro photo in black and white.
With Macro we usually get a straightforward description of small objects or animals but it can also be used for artistic purposes. Creating macro images with an interesting contents combined with a good composition is far from easy, even more when color is left out of the equation. BW can give images a surrealistic atmosphere because subjects are less recognizable, so that's a possibility that can be exploited.
This example is a piece of wood with moss, about 10mm wide.
Camera: K5-II + DFA50 Macro.
F16, ISO = 80.
Lighting: Continuous, single tungsten spot.
Custom Image: Bright, Contrast +1, Sharpness +1 (= Default).
Original image: JPEG 4928x3264 px
Post processing: PaintShopPro X5, Hue, Saturation, crop = 3000x3000 px
Published here: Resized to 700x700 px + border.
Camera: K5-II + DFA50 Macro.
F16, ISO = 80.
Lighting: Continuous, single tungsten spot.
Custom Image: BW, Contrast +2.
Original image: JPEG 4928x3264 px
No post processing, crop = 3000x3000 px
Published here: Resized to 700x700 px + border.
In this case the image is not a conversion from color, it is a separate photo with Custom Image set to BW in the camera.