In article ,
DerbyBorn wrote:
and what is meant by 35mm Eguivilant when describing focal lengths

It's the same problem as TV in the early days. There were several
different types of electronic camera in use, and all had a different
'target' size. Target being the equivalent of film size. So a say 1" lens
on one would produce a different 'size' picture on another. Which made for
problems at planning stage since it wouldn't be known which type of camera
might be in use.

If you use angle of view in degrees, you get the same size picture
regardless. And the cameraman on the day can be expected to know which
focal length lens gives that particular angle on the actual camera.

--
*Out of my mind. Back in five minutes.

Dave Plowman London SW
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