1/24/2012

Underwater Camera - A Brief Introduction

By Aikednea Johansen


It required unique watertight housings in order to be utilized for underwater photography. Nikon underwater camera had water contact optics which allow underwater imaging possible but lacked the capability to focus correctly on land. Nikon was discontinued due its obsolete film system in 2001 but an amphibious range finder by the name of Motor Marine III is still being manufactured by Sea and Sea.

An is specialized gear which is obviously intended for underwater photography but it also can be used on dry land. Underwater camera have special protective camera particular housings intended for numerous digital point and shoot cameras, digital compact cameras and single lens reflex cameras. Housings are made out of a combination of Polycarbonate and Aluminum or either one of these. All of such housings are equipped with manage knobs allowing photographer to carry out his task with ease. A method of Silicone O-Rings at some essential joints makes the housing waterproof. Photographers use wide-angle and/or macro lenses in their underwater camera which enables them to have a close concentrate. This is especially helpful when taking pictures of sea creatures which may prove dangerous in a close range.

While using an underwater camera with wide-angle lens, a distortion in the image might be encountered due to refraction. Because of this reason an manufacturer uses dome-shaped or fish-eye ports to maximize the effectiveness of their.Distortion caused by refraction is not an problem with use of macro lenses in underwater cameras. As a matter of reality refraction adds to its benefits by growing its magnification allowing capturing of very little sea objects. Consequently a simple flat glass port is utilized.

Because of lack of sunlight exposure underwater, you will find a few problems with an with wide-angle lens concerning use of flash lights. Generally, wide-angle pictures can be 100% strobe light in interiors of a cave or perhaps a shipwreck but these are rare circumstances. Numerous modern underwater camera producers have equipped their cameras with through-the-lens (TTL) metering for the purpose. While utilizing underwater camera with macro lens, 100% strobe light for exposure is very likely to be utilized by photographers because of unavailability of sufficient sunlight and proximity with the topic. Whatever kind of an, housings, capturing technique and relative gear might be utilized for underwater imaging, there's no doubt that we could never have had seen the wonderful world up-close if such gear wouldn't have been invented.






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