Accessories for your needs!
Lenses can make your camera zoom in closer and farther away. Some lenses can change the color of the picture. It all depends on what fits your needs.

Tripods are meant to hold your camera up. They come in all different sizes to fit your needs. There is more flexible ones then others. It just depends on what you need.
These are the main items you would need to capture a nice picture but if you want more items for them here the link!
 
Canon - GO! Nikon - Go! Fuji Film - GO!
Sony- GO!