AG EXT 504 DIGITAL PHOTOGRAPHY                                                                                 (1L+2P) III

  The students need to have knowledge and skill to communicate with visuals. The knowledge and understanding of photography is essential in designing of messages and for preparing other communication materials used for extension work and scientific report writing. Documenting of research and extension activities, post intervention development monitoring are important areas where photography is extensively used. Students orientation in photography will improve the extension work they execute.


  Basic Science of Photography; Camera: Evolution, its components, functions, uses and accessories, Digital Camera, its difference with conventional film camera; Lenses: Photographic lenses, Lens aberrations, Resolving power, Type of lenses, their application. Exposure: Light intensity and film speed, Exposure controls, Effect of  aperture and shutter speed, over, correct and under exposures. Exposure meters

  Light: Fundamentals, Lighting techniques, daylight and artificial light, creating different photographic setups to suit scientific samples; Depth of field: Sharpness, Variables controlling Depth of Field, Influence of aperture and shutter speed in picture making. Picture: Elements of a picture, Photographic composition, Forms, Feelings, Balance, Cohesion and aesthetics.

  Electronic imaging: Digital photography, Photographing with digital cameras and its controls, capturing digital images using scanners and Digital Image Processing, Controlling brightness and contrast; Controlling tones dodging and burning tools; Colour controls -using hue, saturation and variations;

  Output: intricacies of printing digital images, Computer printing and photographic paper printing; Output for on-screen presentations and for web pages; Preparing lecture slides - content limitation and layout; its utility in preparing presentations for research papers and other publications; Applications: In Agriculture, Scientific Photography, Communication, Scientific presentation and Extension work.

  Using Digital Camera and learning to use its functions. Application of different lenses. Lighting techniques. Creating photographic set-ups to suit different scientific samples. Image corrections and enhancement with image editing software. Use of  Photographs in presentation slides – maintaining aspect ratio, content limitation and layout.

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