Ken Burns, the documentary film-maker behind The Civil War, Baseball, Jazz and others, knows something about telling a story with images and voiceover. He’s brilliant at presenting information on a screen.
Because many of his films involve subject matter with little or no video footage (and because he never does reenactments), Burns relies heavily on the use of historical still imagery. And to bring this imagery alive, he makes heavy use of a film technique called pan and zoom in which the camera moves closer or farther away from the image and/or moves across the image.
Burns is so associated with this film technique that at one point, Apple actually called it’s automatic pan and zoom feature in iMovie the Ken Burns Effect.
So, what does this have to do with your PowerPoint?
In replacing a series of bullet points with an image, you’ve most likely increased the effectiveness of your message and presentation. But at times, static imagery might start to feel a little…static.
By using PowerPoint’s “Shrink/Grow” and “Motion Path” animation effects (or Keynote’s “Move” & “Scale”), you can be just like Ken Burns and add a sense of movement, depth and drama to your imagery.
Even just a slight pan, zoom in or zoom out can help give a sense of depth and movement to an image. Let’s say you’re talking about NASCAR. A full screen image would be good, but zooming and panning adds a bit of drama.
Keynote allows you to visually size and move your image end state when applying “scale” and “move” which is a very nice feature. In PowerPoint, there’s a little trial and error involved as you’ll have to make some initial guesses when typing in sizing percentages and setting a motion path. If you do want to zoom and pan simultaneously (which you’ll often want to do to focus in on the perfect part of the photo as an end state), you need to set both animations to run simultaneously by setting the second animation to happen “with previous.” Additionally, if using a motion path you’ll want to select “effect options” and deselect “Smooth start” and “Smooth end.” Otherwise, you’ll get a dizzying effect on screen.
I should point out that if you’re zooming in by a large percentage in PowerPoint, your image will start to pixelate no matter how large the image was when you inserted it on your slide. This is because PowerPoint unfortunately “sets” the image prior to the animation. So, if you grow it by 300%, it will become 1/3 as crisp. Depending on the image and the zoom percentage, you may not notice any difference, but you would not want to use this technique to grow a logo by 500%. Zooming out on an image has no effect on quality, and you don’t have to worry about this issue in Keynote. I will point out that there is a somewhat complicated workaround for this image zooming problem. I won’t go into here, but if there are any power presenters who are interested in learning the trick, just email me and I’ll explain it.
Remember that whole “a picture is worth a 1,000 words” thing? Try it next time you’re putting together a presentation. Take the on screen text from a slide like this, and put it into the speaker notes…
Make your image full screen, and then animate it a bit…
If you want to see an example of this effect in action from one of my presentations as well as a couple of ways to tell distinct stories with a photograph and this technique, download this file. And, of course, if you have any questions about this topic or anything related to presentation, just drop me an email anytime at nolan@nolanhaims.
