2.5Through the Looking Glass: Lens Adapters

Although relatively small-sized cam corders have served to get more and more videographers into the HD arena, there are several trade-offs to smaller chip sizes and one of them is wide angle shots.

The smaller imagers of ⅓″ and less cameras make it increasingly difficult to inexpensively manufacture quality lenses, especially with wide angles of view.

fig2_5_1

A 0.7× wide angle converter attached to the front of a Canon 20 × zoom lens.

Angle of View

The angle of view (AOV), or field of view, describes the degree of view a particular lens can capture. A 180° AOV would see everything including the edges of the ...

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