Just thought I would forward a little empirical information. There are
others who are better versed in the optical theories pertaining to this
issue and they are doing a good job of explaining those theories.
I make the majority of my income from producing videos. The lens I prefer
to use most of the time is a Canon 12x6.5 (mounted to a Sony DSR-500WS with
2/3" CCDs, FWIW) and the 6.5 is considered a wide lens. The majority of
lenses in use are not that wide, although there are those that are wider.
The telephoto end of the lens is 78. Not very long compared to a lot of
video lenses on the market and it does not sound long compared to 35mm
lenses. When shooting a "portrait shot" if I zoom in on my subject and open
up my aperture, the background will be thrown out of focus. The shot is
very much like a head and shoulders portrait shot with my 200mm at 2.8
mounted on a 35mm camera.
One of our current favorite ways to frame interview shots is to zoom out
wide with our subject offset to one side of the frame. The subject is only
a few feet from the lens. This really allows us to create a sense of space
or depth and the look and perspective is still very flattering.
You do not tend to get caught up in millimeters, sensor size etc. because
the same principles and techniques from still photography still apply. Only
the numbers have changed.
David Jurney
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