There is a misnomer that digital photography is its own form of photography
, quite untrue. The digital part of photography is just the method of recording so what applies to photography applies to digital as well. So let's take a look at the three accessories I think that every photographer needs.
These are not listed in any particular order and I do not think in any order of significance either although if you were to push me for an answer, I would place a tripod as my number one accessory. It will also depend on what kind of photography you are pursuing as to which one will be number one to you. They are, nonetheless, accessories that I would list as essential to the gear bag of a photographer.
1. A tripod
If you do not already have a tripod then get yourself one. Find the most expensive one you can afford. A proper strong tripod is crucial to the kit of a photographer. There are a number of situations when light conditions are not good and the extra stability can help you create crisp, sharp graphics. Just a little camera shake will cause blurring to some degree in the final image. A tripod is specifically effectivewhen shooting close-ups of flowers and small creatures and supports you to have full control of your images.
2. Remote shutter release
This is coupled with the tripod and is vital when avoiding camera shake. Even when your camera is mounted on the tripod, the most simple action like pushing the shutter button can still provoke camera shake and prevent you from taking the sharpest images. It works very simply either connected by a cable to the camera or using an infrared connection to activate the shutter.
3. A good circular polarising filter
A polarising filter cuts down glare and reflections off shiny surfaces. Those of you who have ever owned or used a pair of polaroid sunglasses will realize the outcome that it has on shiny and reflective surfaces. This comprises foliage as well. When using polaroid sunglasses while looking at water you are able to see below the surface if the water is clear. The sky becomes bluer and the green vegetation greener. If you are landscape photographer you will really benefit from a polariser. I consider this essential. One tip though is that you should always use one that has the parallel or higher quality of your lens. There is no point in putting bad glass in front of good glass.
In conclusion, remember that these are my three top choices of accessories in no particular order. You need to choose which ones will serve your particular needs the best. I use all three equally but maybe if my photography changed slightly I would add another one or two to my list. Happy shooting!