Macro lens such as the M.ZUIKO DIGITAL ED 60mm 1:2.8 MACRO from Olympus
Window for light or two constant light sources placed either side of your set-up
Container to hold your flower
Tripod - keep your hands free so you can adjust the position of the flower head etc.
Photographing a flower head on a black background is a simple but effective way to make yourself a piece of wall art. The bright petals against a stark, dark background make a vibrant image that wouldn't look out of place on the shelves of stores that are designed to fill your home with accessories and decorations.
If it's a sunny day you'll have plenty of free light falling through your windows to work with however, if it's a gloomy and really overcast you'll need a couple of constant light sources to place at either side of your set-up. You want just enough light so the petals have contrast and don't blend together. Take a look at the edge of the flower too as you don't want it to vanish into the background too much.
You can use whatever you have to-hand as long as it's black and not reflective. As holding a flower still is rather hard work we used a plastic cup as a stand and taped the flower to it but a vase or any other container will work just as well.
Don't use an aperture that's too wide as you'll lose too much detail towards the edges of the flower and if you're shooting straight on make sure the centre of the flower is sharp. Experiment with your shooting distance, taking shots of just the centre of the flower or try changing the position of the flower to shoot it on a slight angle.
Once you have your shots why not get creative in Photoshop? Take a look at ePHOTOzine's technique
section for Photoshop, Lightroom, Elements and GIMP editing tutorials.
For more information on the Olympus OM-D E-M10 visit the Olympus website.