Photography is a part of art in which the artists makes a photograph of a thought or idea. Usually the vision of the idea precedes the realization of the photography. Photography is both an art and a science. Photography allows us to express our feeling and emotions, but to do so we need to be the master of the scientific part of the medium. So there is always a need for the photographer to know all the intricacies and thoughts behind photography. Our book refers to the use of science, such as chemistry and physics, in all aspects of photography. This applies to the camera, its lenses, physical operation of the camera and electronic camera internals in order to take pictures properly. This book also focuses on detailed explanation of photographic factors, like exposure, aperture area, exposure time, luminance and shutter speed. One photographer should know the evolution of photography with time and development. In this book, we explained the vision, thoughts and the scientific use photographic parameters behind a successful and satisfactory photograph.