What brand and model of camera will this kit fit?
This kit will fit any 58mm lens camera, the model of your camera is not relevant as long as it has the same thread size.
How can I make sure this will fit my lens?
This kit was designed for 58mm lenses.
The most important thing to do is find out the thread size of your lens, your camera's lens thread size will be marked somewhere on the lens barrel or printed underneath your lens cap. This number is always preceded by a "Ø" (diameter) symbol. For example: Ø58 = 58mm lens thread size.
What is each filter used for?
UV filters reduce haze and improve contrast by minimizing the amount of ultraviolet light. Especially useful in areas of high altitude or snow, eliminating the undesirable blue cast.