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This is one trick I didn't know before. It should be obvious to anyone with some knowledge in photography, but I didn't know so I'm noting this down for future reference.
Long story short: the flash function + the bulb function.
Longer story: Get the objects of exposure ready. Go to a dark place. Use bulb setting. Use flash to illuminate one object before the camera, than another, until all objects needed are exposed once. The background can be either illuminated directly/semi-directly or light painted.
The idea is that since under bulb setting, anything dark and moving won't be caught on picture, yet objects well-lit will be, it can be exploited to create the multiple exposures effect that digital cameras usually don't come with. Though if you want to do the multiple exposures effect of some place very well-lit, then... just use Photoshop or Gimp. Bulb can't do that.
And on the subject of light painting: there's light spray paint too. I used to only know the direct light-source-facing-the-camera one, which is using the space as canvas and the light as brush, but recently I learned the spray paint. You make the source of light back to the camera so it won't be seen, and spray the light on the surface you want to paint. Use different colours of light if you want. This way you can pain a wall rainbow without a single drop of paint, and no damage to the wall. It is done with the bulb setting too, of course, though if you know exactly how long it'll take you, an n second shutter speed works as well.
Long story short: the flash function + the bulb function.
Longer story: Get the objects of exposure ready. Go to a dark place. Use bulb setting. Use flash to illuminate one object before the camera, than another, until all objects needed are exposed once. The background can be either illuminated directly/semi-directly or light painted.
The idea is that since under bulb setting, anything dark and moving won't be caught on picture, yet objects well-lit will be, it can be exploited to create the multiple exposures effect that digital cameras usually don't come with. Though if you want to do the multiple exposures effect of some place very well-lit, then... just use Photoshop or Gimp. Bulb can't do that.
And on the subject of light painting: there's light spray paint too. I used to only know the direct light-source-facing-the-camera one, which is using the space as canvas and the light as brush, but recently I learned the spray paint. You make the source of light back to the camera so it won't be seen, and spray the light on the surface you want to paint. Use different colours of light if you want. This way you can pain a wall rainbow without a single drop of paint, and no damage to the wall. It is done with the bulb setting too, of course, though if you know exactly how long it'll take you, an n second shutter speed works as well.
