When learning about shutter speed and aperture we spend some time collectively in the studio doing some workshops. One of these was an afternoon light painting and playing with long exposures in the dark. The results are varied as we tried painting with light, multiple exposures with a flashgun and combining people and light.
For most of these shots the shutter speed was around 8 seconds, f8 so that we didn't have to adjust focus a lot if things moved slightly. We kept the ISO as low as possible to get the best noise free images.
We then used torches and other various light sources and kept them pointed at the camera and began drawing and moving them around. The results are always different so there was a lot of experimentation but it is clear to see how this technique could be used effectively both in a studio and on location.
For the multiple exposure shots we used an off camera flash fired manually. We got someone to stand on the backdrop and then fired the flash, this freezes that frame and exposes it but because the exposures were a few seconds we could move around and use the flashgun again which exposed another image but because things moved the image is different. They then both appear on the same photo.
We played around with this as it was a great way of showing movement but it was very hard not to overlap the path you had already been on which ends up with an overlaid image like below.
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