shutter speed also known as “exposure time” stands for the length of time a camera shutters open to expose light into the camera sensor .If the shutter speed is fast ,it can help to freeze action completely .If the shutter speed is slow it can create an effect called "motion blur"where moving objects appear blurred along the direction of the motion.This effect is used quite in advertisements of cars and motorbikes.
Medium of light is also very important in photography.photographer has to check which medium is being used in the photography either its sunlight, bulb light or any other indoor light .Techniques of the photography vary according to the medium of photography.
Light To make a picture you require light ,that light may be natural or artificial such a as a light bulb or flash .Light that our own eyes are sensitive to 9 is called a visible light .But other creatures and material are sensitive to non visible forms of light such as Ultraviolet light ,infrared or x-rays.
Main factor of composition is rule of third Rule of third can be done manually by cropping too.
Optics or lense are very important in photography .There are different kinds of lenses used in photography like standard lense ,wide angle lense, Telephoto lense, Zoom lense, Fish eye lese, Macro lense, Tilt shift lense and image stabilization lesne.The choice of the length depends on your type of photography.If you want to shoot outdoor you will need wide angle lense but in indoor photography vivid range of lenses are use to cater different types of photography.