Do you have dolly track you could practice this on to see if it is the effect you would like or do you have to rent track?

If you do a test shot, post the results on vimeo or something. I'd like to see how it looks.

Re: Dolly out and Zoom out
 

Actually Hitchcock would zoom in / dolly out or vice versa, not zoom out / dolly out.

Re: Dolly out and Zoom out
 

If you dolly out and zoom out at the same time, what you'll end up with is a zoom out that is twice as fast.

Re: Dolly out and Zoom out
 

Denny: I have done the dolly/zoom effect on tripod dolly wheels and always wished we had spent the time to lay track...

And yes, the classical usage is dolly opposite to the zoom...

Re: Dolly out and Zoom out
 

A dolly out plus zoom out will not give the same look as a zoom twice as fast or a dolly twice as fast. Dolly moves and zooms have a different effect on the perspective of the objects in frame. That is why you sometimes move the camera closer and use a shorter focal length lens versus keeping the camera in the same location and just zooming in.

-Garrett

Re: Dolly out and Zoom out
 

You are correct. Zoom is not the correct word. What I meant was that if you dolly out and zoom out simultaneously, you'll end up with subject image size that gets smaller, with an increase in apparent perspective. But have you actually tried it? The effect looks like a mistake.

Re: Dolly out and Zoom out
 

After all this time of thinking about it I haven't had a chance to try it yet. I'm not sure it will look like a mistake but it will be an effect. I was wondering what type of feel that look would invoke. I'll have to try it but I want to have the subject in a fairly confined space with some interesting set dressing on the sides and behind.

Warren, do you have an example of this?

-Garrett