1:- The first and basic requirement is to have a good Digital SLR with atlest 18 mm lens.
2:- Set the camera setting to auto mode or in manual mode with 1/30 shutter speed, 3200iso.
3:- Detach the lens from the camera body.
4:- Reverse the lens so your big lens will face the shutter.
5:- Attach the camera on tripod.
6:- Just take the lens near the shutter and place the object within a distance of 1 inch between the back side of camera and object.
7:- Take a perfect click of pro level macro photography.