Heya! i was just wondering if anybody had some tutorials on this type of photography as i want to get involved... from what ive understood its extended shutter speed (either bulb or certain amount of seconds), and in complete darkness. But what i want to know is how can i get it to be focused. Should i place the light source somewhere in the area, take a pic with lighting on, remove the AF, and try and remember the position of it in the dark? :S any ideas?