Blogs » Business Notebook » Light painting? Count me in.

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I've always been fascinated with taking pictures.

When I was little, after church I'd get all the kids together and we'd play what I called "magazine covers," where they'd make up a magazine name and then I'd arrange them for what the cover art should be and pretend to take a picture.

Once I got a little older, I got my disposable cameras, then upgraded to film cameras (and broke a couple of pretty decent cameras in the process) and eventually moved on to digital.

Not that I really know what I'm doing, but I try.

Anyway, I was stumbling around on YouTube today and found the video I've attached on here. In the process I got interested in what they called "light painting." I've tried it myself a little bit but never really gone out of my way to figure out how it works.

According to this Web site, it's fairly simple - well, depending on how much detail and work you want to devote to it. But you're basically moving lights around to form certain patterns or words and the camera is able to pick it up.

 It seems like most of it has to do with shutter and aperture.

My question: can someone explain a little more what shutter and aperture are?

I understand the basics regarding shutter speed, but don't get it completely. I come across these terms quite a bit when I'm reading up on photography and really wish I understood more about them!

In the meantime I think I'll try my hand at this light painting business. It looks like fun.