With the development of photography technology and equipment, just shooting on land can't satisfy everyone. Many photographers have begun to try underwater photography. Underwater photography has high requirements for technology and equipment, so how do we shoot underwater?
1. Start the machine in advance.
When you are underwater, you must turn on your computer first. Capturing the picture is the most important thing. You should stabilize it slowly, and then take other detailed pictures slowly after shooting the big scene.
2. Give priority to with wide angle
Generally, telephoto is not needed underwater, because the medium has a great influence, so it is generally necessary to shoot slowly close to the distance. Some big dangerous creatures can only use telephoto. Underwater is still dominated by wide angle, because the medium has less influence and it is easier to capture good pictures.
3. Selection of white objects
Because the color temperature under water is not standard, the color temperature under water can easily reach 20 thousand. A very important effect of underwater is that every meter you dive, the color will change; When you meet different ocean currents, the color will change. It is suggested that the white balance should be adjusted almost every shot.
Some photographers use white flippers and white coral ash as the objects of whitening. Cai Xueliang uses the buoyancy aid (BCD) worn by himself, because there is a piece of white on it, which can be used as the objects of whitening, and it is very convenient.
4. White at any time
Photographers should always remind themselves when shooting underwater? White, white? . The underwater camera is now or never. When others are playing, as a professional cameraman, you have to use your free time to adjust the white color to prepare for the emergence of fish.
Diving photography usually goes down to the deepest point and then gradually goes up. Don't shoot during the dive. It's best to adjust the white balance to shoot when diving to the deepest place. Before floating, adjust the white balance and keep the camera in a state. If you wait until you see the machine, you will disturb these creatures. If you set the camera in advance and hand it over to shoot at close range, they will not move, so it is very important to prepare the camera in advance.
5. the secret of whitening the big scene
Remember this principle, so that the color temperature in the vicinity is normal, and the display in the distance is always blue, so that the shooting effect is the best. It is difficult to adjust the white balance when shooting a big scene and shooting a distant view of the sea wolf storm. At this time, in order to ensure the normal color temperature in the vicinity, we must make other colors appear in the picture, kick a flipper or put an arm in, so that some other colors appear in the proportion of the picture, so that the color effect in the distance can be well displayed.
6. Shoot in shallow water.
Shallow water area is an ideal shooting area for documentaries or beginners because of sufficient light. Generally, the water depth of 5 meters is also the depth often chosen for some overseas exploration documentaries.
7. Focus skills
Underwater shooting generally uses autofocus, everything is subject to the first shot, not all by hand, of course, underwater autofocus will be a little slower because of the medium. Sony PMW-EX 1 can be used for manual auxiliary focusing, and the focus can be changed by itself on the basis of automation.
Because the autofocus response of underwater shooting sometimes lags behind, you can estimate a distance first and autofocus a focus underwater. When the fish comes, aim the camera at the fish again, so as to avoid the phenomenon of slow focus response.
Use skills of waterproof cover
1. Adjust the buoyancy of the shooting equipment.
Adjust the waterproof cover of GATES to slightly positive buoyancy underwater, that is, after the cameraman releases his hand, the shooting equipment can float slowly. The advantage of this is that the cameraman can hold the waterproof cover with both hands when shooting, and can let go once there is danger to ensure his own safety. If you shoot with a professional SLR camera, it is suggested to adjust the waterproof cover to a slight negative buoyancy, which means that it feels sinking, because underwater photography is more sensitive to the photographer's creative shooting.
Step 2 use red film
When you dive below 20 meters, the color temperature is beyond the recognition range of the camera. At this time, you should add the red film that comes with the waterproof cover. According to the filtering principle of photography, red film can filter out some blue, let red light pass through, make the color temperature return to normal, and the color is more realistic. Remember that you still need to adjust the white balance after the red film. After using the red film, it is inevitable that the image will lose some color.
Step 3 Adjust the monitor
Because there are many media influences under the water, there is a color difference between the real shot and the one seen when shooting under the water at that time, so the monitor in the GATES waterproof cover is very important for shooting. Before launching, it is necessary to calibrate the colors of the camera and monitor, and it is best to brighten the monitor slightly, because the brightness seen by the eyes will be lost after passing through seawater, mirrors and other media underwater.
4. Equipment maintenance
The waterproof cover must be washed in a clear water pool after each use. The best way is to soak it for a period of time instead of just washing it. In addition, silicone oil should be used to lubricate dozens of internal and external sealing rings to keep them moist and prevent them from cracking. When the waterproof cover is not used, it should be stored in a sealed box, and the battery connected to the monitor should also be taken out.
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