The basic setup you need is a DSLR and a lens. However, if you want to have a solid camera kit dedicated to nature photography, I recommend the following items. 20 megapixel (or greater) DSLR or mirrorless camera Sturdy Tripod 24-70 mm f/2.8 lens 70-200 mm f/2.8 lens ND filters at various densities Circular Polarizer filters Nature Guidebook - specific to what you want to photograph Sense of adventure