x-ray effect - multiple exposure

[Josh66]

I've never tried it digitally, but I have a feeling that changing the ISO will not work like it does with film.

Most likely, you'll have to either use exposure compensation, or manually underexpose each shot however much it needs to be underexposed.

 

[Vautrin]

Multiple exposures do strange the, at least on film. At the very least, they're unpredicatble, and you can't always say if it'll be over exposed or not

You have to remember that, at least on film, you may have several stops of latitude with your exposure.

So even though it's overexposed, you might still see details.

Or, within your picture you have areas of dark, that may not come out, and areas of light in each exposure, doing strange things.

Holga / Galleries / Multiple Exposure

The Magic Mystery Of Multiple Exposure in News in Magazine - Lomography

 

[osirus]

played a bit, had my lapptop on in a dark room, exposed first to get the room bright, then exposed for the detail in the laptop screen, results wern't the best, tried 2, 3 5, and 10 exposures in the multi exposure settings.
i got a little bit of detail back into the laptop screen, but it was still very overexposed.