Induction Task

Lighting can affect the image produced to a large extent, this can be due to the strength and direction, among many other things. One such way lighting can affect an image is that of the exposure, exposure simply put is the amount of light that reaches a photographic film or image sensor. This can be determined by shutter speed, which is simply the length of time a camera's shutter is open when taking a photograph. (Ray, 2000) Slower shutter speeds are often selected to suggest movement in a still photograph of a moving subject. Excessively fast shutter speeds can cause a moving subject to appear unnaturally frozen. 

Lens aperture also affects exposure, the aperture is the ratio of the lens's focal length to the diameter of the entrance pupil. (Smith, 2007) Depth of field increases as aperture decreases, image sharpness is related to aperture through aberration, due to imperfect lens design, and diffraction which is due to the wave nature of light. (Langford, 2000)

One use of lighting within moving image is to manipulate the shape and direction of shadows. Strong direct light produces dark, well-defined shadows whilst directionless diffused light produces weak, soft shadows. Lighting coming from behind the camera is called front lighting but the image produced will lack detail or provide an impression of depth. To give an impression of form, depth and texture to the subject, the light should be coming from a different angle. (NAVPERS, 1951)

Changing the direction of your lighting results in in the shadows changing position too, for images in which rendering texture is important, side lighting is ideal. It produces harsh shadows and high contrast, which can be adjusted using reflectors or fill-in flash. Another light positioning commonly used is that of back lighting, this produce will have a silhouette effect on the subject but reflectors or fill-in flash to brighten up dark shadows and improve subject detail. (NAVPERS, 1951)

Lighting can be used in a manner of different ways to produce different effects, the above are only example in a large range of techniques that can be used to produce the perfect image needed. I have not fully explored lighting because I did not manage my time well but I feel the research done helped me produce the videos in the end.

Sidney F. Ray, 2000. "Camera Features". In Ralph Eric Jacobson et al. Manual of Photography: A Textbook of Photographic and Digital Imaging. 9th Ed. Focal Press.
Smith, Warren, 2007. Modern Optical Engineering. 4th Ed. McGraw-Hill Professional
Michael John Langford, 2000. Basic Photography. Focal Press.
NAVPERS, 1951. Photography Navy Training Courses Vol 1. Bureau of Navel Personnel