9

Films, filters

Having composed and formed the picture at the back of the camera the next step is to create a permanent record of this image. Capturing pictures and turning them into electronic signals by means of a CCD panel (Chapter 6) is fast improving. For the time being, however, exposing onto chemically coated film remains our main camera image recording medium because of its fine quality of results and lower equipment costs. Once film is exposed and processed it can be scanned and digitalized, page 270, allowing more adjustments to be made to pictures than ever before.

Light-sensitive compounds of silver have been used from the earliest days of photography 160 years ago, becoming enormously improved in sophistication and performance over ...

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