1. Three legs are better than two. A tripod is absolutely essential, but rather than running out and purchasing any old tripod I recommend saving up for created website built model from you have to be tripod manufacturer, Gitzo and Manfrotto are two that spring to mind. A tripod that are probably poorly built or overly light weight for your camera are normally next to useless as it can shake with any light breeze perhaps under the vibration period cameras shutter.
2. Use a low ISO. You this all first think ok, shady, lets increase the ISO. The unfortunate side effect of increased ISO come with increased noise, this become a real issue when taking pictures of with long exposure times so receiving the ISO down is of serious importance. Simply use a longer shutter speed instead, knowing that the camera is supported well in your solid tripod.
3. Ever heard of a neutral density filtration? Available in a myriad of strengths and rated by how much light they stop. Essentially ND filters decrease lights hitting your sensor whilst imparting nothing else changes in color body temperature or visual quality. In practice they often change the color temperature slightly but it is nothing that can't make a change fixed with white coordinate. Now lets assume i'm photographing a waterfall and we want to render the water in order soft mist. First you would invest in a low ISO and a small aperture for the creation of the slowest shutter up possible, yet the shutter speed can still be faster than you wish. Just pop on a pretty simple ND filter to tone things down even more and do a little dance.
4. Film is not dead! Well or long exposure photography it's not. Unlike digital sensors and also develop unpleasant noise during long exposures film handles it nicely and can render some really beneficial long exposure images. One issue of note when using film for long exposure efforts are a bugger known and in some cases reciprocity failure. Basically film loses allergies to light over the length of the exposure and this should be compensated for. Find a reciprocity chart for that specific brand and type of film under consideration, make your exposure corrections and bob is the uncle, assuming you include an uncle named bob, that is.
5. Guiding light. No I'm not talking about a golden light emanating of an sky and leading you towards the course of forgiveness, that's called acid and was big equipped 70's. What I am regarding is a cheap, battery operated torch. Trust me when i say it is an essential piece of kit. As you start taking photos long exposure photos you will learn finding yourself in experiences of fading light, a torch is a great asset to help whilst you change camera settings and find your way out of locations at night.
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