This tutorial is for everyone who loves the magic of night photography, surreal effects, use of lights, and long exposures even at daylight! Or just for everyone who wants to try this section of photography. I used some of my own pictures as examples for the topics I am talking about. Every picture has the EXIF/camera data, so you can see how I took this photo!
Photography at night
The easiest way and also the cheapest to get long exposures is to take photos at night. The whole photography is a triangle: http://4.bp.blogspot.com/_fxbalKKB9mw/ScJbsMEPLLI/AAAAAAAAAlo/fV7m4syiOvw/s320/Exposure+Triangle.gif To get the right exposure, shutter speed, aperture and ISO are the main parts. If you have less light, open the aperture and ISO and shutter speed are constant. If you use a higher ISO you can keep your shutter speed and your aperture, and if you use a slower shutter speed (longer exposures) you can keep the ISO and the aperture! And this is what we need for night photography!