You need a camera setup which allow you to take closeup or macro shots and recommend to use a flash to fill-in and a tripod for slow/still life.
Basic Equipment
SLR/DSLR Camera + Macro lens
SLR/DSLR Camera + Telephoto/Tele Zoom Lens + Closeup Filter
SLR/DSLR Camera + Extension tube + Telephoto/Tele Zoom Lens
Examples
Macro lens:
- Sigma 105mm macro
- Nikon 105mm macro
- Canon 100mm macro
Telephoto lens:
- 70-300mm
- 75-300mm
- 70-200mm
- 100-300mm
Tele lens:
- 200mm
- 300mm
Closeup Filter
- Canon 250D/500D
- Hoya Closeup +2,+3,+4
- Nikon 3T,4T,5T,6T
Extension tube
- Kenko set