I have been doing photography for a long time selling photography at art shows and galleries for over 15 years. My business name is Dean's Art/Photography. I use to use the medium format Hasselblad camera most of the time, Now I use a 35mm Nikon D800E most of the time.
Hasselblad, Nikon D800E with Nikon lenses
In the past I shot mostly what I felt would sell in the art shows or galleries, but I have a wide variety of photographs having over 40,000 slides or negatives.