Macro photography is an exciting segment of photography and can be very rewarding if done properly. Below, I’ve listed a few things you will need to get started with notes about each one. Macro Lens. Many cameras let you set your focus so that you are very close to your subject, a macro lens lets you focus much close where your subject is exactly the same size as your image. Most lens manufacturers produce Macro lenses in a 100mm or 105mm length, and some also make 150mm or 200mm lenses. The advantage of the longer lens is that you don’t need to be as close to your subject in order to get the 1:1 ration. This can be advantageous when shooting wildlife or subjects that move. Most underwater housings have ports for 100/105mm lenses. Because you are focused so close to your subject, your depth of field will be very small. To help counter this, you will need to shoot at f16 or higher which means your shutter speed will be very slow. This mandates a tripod. A tripod will also help when setting up your shot. Removing any center columns and mounting your head as close to the tripod collar will help you get as low to the ground as possible. Some tripods let you invert the center column and lower the camera all the way to the ground. This is helpful, but can be awkward because your camera is upside down. Some tripods are designed so that their legs will extend out flat, which is perfect for macro photography. With a small depth of field and large aperture, you will need to add in as much light as possible to your image, and this is where your flash comes in. You can use a normal flash that sits on top of your camera, or a ring flash that attaches to your lens and gives you light from all angles. Alternatively, you can also find a bar that enables you to use two flashes (one on each side of your camera). Extension Rings or Tubes. These are rings of varying thickness that you attach between your lens and the camera. They don’t have any glass in them, but should have electronic connectors. They let you focus even closer than your lens normally would. This may sound like a lot, but once you have some of this equipment in your bag, you will find yourself reaching for it all of the time. It may take some practice to coordinate the tripod, flash and reflector, but once you have it down, you will see your macro images improve dramatically.