General, filming when this kind of subject matter, the light is jumbly and changeful. Exposure should be decided by the ambient light of the spot and glitter just complements, and do not use TTL pattern forever.
To show clairvoyant result, choose an inferior place, point to camera lens surface to film a little. Should avoid to be like bird's eye in that way, from on downward angle will film underwater landscape, otherwise, your photograph will be an old plane, without any contrast and definition but character.
Landscape kind photography: Large object, such as heavy boat, the requirement has film widely as far as possible horn, pearl eye camera lens is better choice. If pursue, it is the debris of the French Rubis submarine that is located in Mediterranean underwater. Be out of shape to decrease, especially to heavy boat, avoid to be in as far as possible upper part of the main body that be photographed perhaps films on the angle with too large lower part. (here interpreter must be compared at odds, complement and specification can give after hoping other friend considers -- translator)
Effigies
Effigies kind work is to show diver underwater activity commonly. Perhaps be with a fish in all dance, perhaps be the job that should go doing some kind of underwater. The camera lens that uses a 20mm films inside the distance in 1 meter or so, you can get the whole body of the diver with a piece of trenchant detail is illuminated.
Pearl eye camera lens suits this kind to film not quite, be out of shape because of it too big. Using flashlight illuminative at the same time, do not forget to also consider ambient light inside in order to create the environment all round.
To emphasize foreground, setting can be owed expose to the sun to block the left and right sides about. Adjust good flashlight, ensure the facial ministry of diver is enlightened, decide him or not be the camera lens that is staring at you.
Effigies photographs: When filming with wide-angle lens the effigies that gives priority to body with diver is illuminated, need considers a lot of factors. To avoid scale lack fidelity and be out of shape, picture angle had better not exceed 96 degrees. Use 15mm amphibian camera lens or park are waterproof the 20mm camera lens in housing. Stand by as far as possible film, be like the case in the graph, the camera lens of 24mm is very ideal.
Close quarters films
Very regretful is, person of photography of a lot of underwater is using wide part when do not use this skill as far as possible. Just think, taking to be able to let you be in filmed camera lens goes on such 25cm close quarters and you do not use such opportunity however, be a how big loss!
Must admit, appropriate shooting angle searchs in water, aim, adjust the lamp let floating dust glance the bring down arrives the smallest etc, all all these are very not easy. But its are to be worth us to try hard and try so as a result. And skill comes from practice. Tell everybody very regretfully, this kind of skill is to cannot be in the swimming-pool can experienced come out.
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