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.


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 ...

Get Behind the Lens now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.