How To take multiple shots in one pic?

I saw some pictures that have the same subject moving, but in the same picture.... eg, like a frog jumping sequence...you know what i mean. Can I know how to do that?? Thanks.

Take multiple shots of the frog but keep the camera in the same position on a tripod. Don't move it at all. Then merge the photos in editing.

With film you can do it by simply not advancing to the next exposure.

its only possible to do it in editing software with digital cameras, as once a frame has been exposed and 'saved' thats it. unlike film which is still sensetive to light.

Was the background black with only the subject lit up? If so, that can be done in-camera using a flash which has the stroboscopic flash feature, like the 580EX and the 550EX.

I was going to say stroboscopic flash too, it only works if there's not a lot of ambient light.

how do you merge them, in photoshop? How? Won't it increase the color intensity or something if merge?
any tutorial on how to merge them in photoshop? Thanks.

This isn't really along the lines of the jumping frog, but each image of me was loosly cut out with the lasso tool and the edge was feathered. This made it easier to match each "me" to the background. If the images of the subject are overlapping, then you will have to be very precise in your cutout, and not feather that area.

It may take a couple of attempts depending on how difficult your subject matter is, but practice makes perfect.

Hope that helps.

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Won't this affect the way shadows are displayed as you would have to cut out the shadow as well?

Yeah, but you can see that mostly my shadows are down from me, not to one side or the other. Again, this will probably take a few attempts. It may not come out just right the first time. It may even involve re-shooting the image(s).

oh, so it's the lasso tool that makes the magic huh :P
By the way, your picture is funny