Friday, October 19, 2007

UNDERWATER PHOTOGRAPHY (4)

Still on the underwater topic ! I was planning to make part 4 about cam maintenance ( quick reminder we discussed "probs and solutions" in part (1) , posted a vid about using a wide angle lens and a red filter in part (2) , and talked about the "reality check" in part (3) ), then i thought to my self , lets explain how the underwater cam system works , just so that u guys know what ure maintaining . So lets get to it ! .. Oh and one more thing , the part about explaining how the system works is probably gonna be explained over a bunch of more posts .


Mostly at this time to shoot underwater, underwater housing systems are the most popular and prevailent option . And their concept is simple , providing a cover for ur normal land camera . As i said this will take long to explain but to really simplify it it consists of 4 basic parts (when discussing housings for slrs)--->






1) A housing : for ur cam and thats basically a box ( it can also be a plastic bag called flexible housing but we'll get to that later ) where u put ur cam where the water cant reach it. This box has a hole upfront for the lens to go through .








2) A port : now we said the housing has a hole for the lens but we wont leave the lens out in the open for the seawater to soak , so we have a port which is basically tube for ur cam lens . It has 2 ends one end is the part which goes in the hole for the casing , and its other end is the part where the light comes into ur lens , and this end in particular can have many shapes according to the type of lens u use... It can be dome shaped( bigger domes for wider angles) , or flat (for macro lens) .





3) Lighting system : which can be Flash(strobe) system , or a continous lighting system.






4) Mechanical Arms : to hold ur strobes and help u position them freely underwater.







Now each of those 4 basic parts will be discussed in more detail in successive posts God willing .

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