Digital Photography

Lessons in this Section: Making a Collage Using Masks Removing Color Casts Bald Sky Fix Digital Resolution, dpi and File Formats Scanning Silhouetting a Background

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Digital imaging is recorded and translated in pixels or dpi (dots per inch). It can be compared with the resolution of your film. The higher the dpi number the better the image quality. For example, an increase in graininess appears with a faster film like 400 ASA vs 100 ASA. Likewise, 72 dpi is visually chunked into squares whereas 300 dpi maintains a smooth looking transition or continuous tone. This is only visible when an image is printed. Your computer monitor has a resolution of 72 dpi so no distortion is visible until the image is printed.

These lessons are designed to help you get started with some digital imaging ideas and things that you can do on the computer that will stimulate your creativity.

Below are some images that show before and after digital manipulations.

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