Underwater Digital Cameras
A good photographer will keep an eye on their equipment. Making sure your battery is working properly and your strobe is transmitting all electronic data to the camera is essential. If you focus your strobe into the lens of underwater digital cameras the strobe output should be minimal and recycle almost instantly. If you leave your lens cap on the strobe should be at full power to ‘compensate’ for the lack of light getting into the lens.
Many problems occur when you focus your light source directly at your subject. To correct this issue try focusing above and behind your perception where the subject is. Keep in mind that due to refraction and camera view, something that is three feet away might actually look four feet away. Your strobe placement will also affect backscatter greatly.
Backscatter is the persistent white specks that show up in your photographs. They are caused by particles (ranging from plankton to dust) that reflect in your shot when the lighting is wrong. You can use Photoshop to remove the specks, or you can shoot the photo right to start with. In some cases the water is so full of particles that you can not possibly remove all of the particles that show up. To prevent backscatter, you can aim your strobe properly. Aiming it behind your intended target will most likely get rid of a lot of backscatter. If you choose the time of day you are shooting, you can reduce a lot of the white particles, shooting during the day will take care of a lot of the contrast from dark to the white particles. Taking photos against a busy background will sometimes solve your problem of backscatter by throwing off the focus of the camera from the particles to the visually busy background.
Shooting Before the Strobe Recycles
Shooting before your underwater digital cameras strobe recycles will eliminate your backscatter entirely however, your pictures will be monochromatic blue and boring. Artificial light is about the only way you will get any color other than blue into your photos. When you take your pictures and your strobe flashes give it time to recharge. The ready light of your strobe will usually come on when it is at 80 percent of its true readiness. Give yourself time to refocus the shot and for the strobe to reach full capacity before shooting again. Underexposure is a complaint when photographers do not let the strobe recharge completely.
Not Getting Close Enough With Underwater Digital Cameras
Water is 800 times denser than air. It also introduces a strong cyan filtration. In order to get pictures that are sharp and colors that are vibrant you have to shrink the water column. Shooting bigger subjects requires wide angled and often fish eye lenses. Fish eye lenses will make the subject appear as it would if you were looking at it. Shooting smaller subjects requires macro lenses. In this article obviously we are talking about features that are found on higher end underwater digital cameras but don't let that stop you from taking shots because you can take great ones with point and shoot waterproof cameras too.