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Multiple Exposures with 350D


k_cannon

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Interesting that Nikon is still handling multiple exposures on digital cameras, though here in the Canon EOS forum that info may be worth little. What might be worth a lot is instruction on how to combine multiple images in PS. Is it as simple as stacking (for example) 3 separate images as individual layers in one file, and giving each layer a 33% opacity? I haven't revisited the multiple exposure technique since going digital but realizer that I also haven't seen advice laid out anywhere on how to properly do it...
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"Is it as simple as stacking (for example) 3 separate images as individual layers in one file, and giving each layer a 33% opacity? "

 

If you wanted them to be translucent I guess so, a more advanced method would be to mask them together with layer masks, you would feather of soften the mask edges to make the transition subtle.

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The simplest way is to take the multiple images then combine using layers and masks. Here is one I did last week. Tombstoning (the art of throwing oneself of a cliff into water) taken in Plymouth (UK).

 

Technical bit, my MKII on slow does 3 frames a second, this picture is a combination of 8 pictures. I reckon there are 6 pictures from the top of the cliff to the bottom, which equals 2 seconds. Someone told me that a body falling through space would travel 4.9m in the first second, 14.7m in the 2nd second so a total of 19.6m or nearly 65ft.

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I've been doing a bit of experimenting with stacking multiple exposures to reduce high-ISO noise recently (works like a charm too by the way).

 

I've been following through some of the tutorials of Sean McHugh (www.cambridgeincolour.com) - interestingly Sean says that the correct opacity settings are 100% for the base layer - 50% for the next - 33% for the next - 25% for the next - 20% for the next etc (eg "100 divided by the layer number") - I don't pretend to understand the maths behind it (although you can bet he does!) - but none-the-less, from my own experiments I'd say that he's spot on.

 

One other "multiple exposure" technique that the OP might find useful is to use a flash with a strobe-scopic mode (like the 580EX range) - just did some with my daughter tonight as a matter of fact - 4 sec exposure and flash set for 8 flashes @ 2 per second.

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