underwater Photo Course :: (1) The Basics :: Optic Basics

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U/W Photo Course Learn u/w photography the easy way!

Lenses

Underwater photography suits subjects at the extremes – both large and close, or small and close. For large, close subjects we use a wide angle lensA wide angle lens is one that has an angle of view significantly wider than a normal human perspective. Typically less than 28mm (on the 35mm system). and for small, close subjects we use a macro lensAn extreme closeup lens..

We will look at lenses (and equipment generally) in the next chapter. For now, let's just quickly consider one very important aspect of every picture - focus.

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