Dolly Zoom

[stevefal]

For me, the second sentence is confusing. I'm not sure what you mean.

I mean that an automatic dolly-zoom mode would make it easy to alter perspective while keeping effective magnification constant. That would make it easier to try different lenses.

Perspective determines how much of the background appears in a shot. Hence auto dolly-zoom would make it easy to figure out which lens will get a certain look, or include/omit a given background feature.

I realize a dolly-zoom can be set up manually, but my point is that a software feature would make it easier. For me, the value is more about quickly choosing lens focal lengths than previzzing moving dolly-zoom shots.

The latter would make for a cool demo though.