Filters have two different meanings depending on how long you have had photography as a hobby. Most of us today think as filters as an option with Photoshop. This is not the case. Before the invention of computers and things like Photoshop we had small glass discs to create the filtered affect. There are many options with filters you can blur a picture, sharpen the picture, and even block out the UV rays.
Most cameras have a 35- 80 mm lens, even the point and shoot type. Often when you purchase a camera casing they will sell you the standard lens with it. All lenses are interchangeable. You do have to stick with the same brand of lenses as your camera and make sure the diameter is the same. The diameter of most lenses is the same as long as you keep to the same brand. The 35- 80 mm lens tells you the extent of reach.
While you can take photographs several miles away with a standard lens you will not have the distinction of features in the print that you need. The standard lens is great for close up shots, such as flowers, spider webs, people, and pets. To gain more defined picture miles away you need a larger lens.
Some people go by the looks when they are choosing a digital photography printer. Because of this, many companies today hire top-notch artists and designers. People want equipment that looks good. They want to buy a digital photography printer that lets them express themselves through its sleekness and overall appearance.
There are color correcting lenses. If the sky is too blue for the photograph you can choose a filter that will tamp down the blue to a less bright state. If you are into underwater photography you might have filters that allow for the underwater colors. The color spectrum does not have a great range under water.
The use of filters in photography not only allows you to have special effects in a photograph to create something new and different, but it can help enhance the shot by adding color or dampening the natural effects of light. Photography has many types of equipment that require skill and knowledge making it a wonderful hobby or profession. If you need a hobby, photography allows you to be creative.