There are a lot of photographers who claim to be professional but are actually not. So how do you know whether a photographer is who he is claiming to be? Firstly, professional photographers Derbyshire would be well-known and chances are that you would have heard about him from a friend or relative. If not, ask for a list of references so that you can know how good a photographer he is. You can ask for his portfolio to know more about his work and style of work – classic, formal or semi-formal. Check for his experience and see if he has photographed for events before.