Category: Glossary

Dynamic range

Camera and Image Dynamic Range

The dynamic range in photography refers to the luminosity range of a scene being photographed. Therefore, the photographic medium used to record that scene can have their own dynamic range limitations. Photographic films, digital...

Pixels per inch

Understanding Pixels Per Inch (PPI)

Pixels Per Inch, also referred as pixel density, refers to the number of individual pixels that a computer display in a single inch area. PPI can also describe the resolution of an image scanner...

Dots per inch

Understanding Dots Per Inch (DPI)

Dots Per Inch refers to the number of individual dots that a printer can produce in a single inch area on the paper. Therefore, a printer with a bigger dpi is capable to produce...

Image file formats

Image File Formats – Types and Uses

There are approximately a number of 58 image file formats, but here will be described only the most widespread and used formats. JPEG (JPG, JPE) The JPEG (Joint Photography Experts Group) is the file...

ISO / ASA Camera & Film Sensitivity

ISO / ASA Camera & Film Sensitivity

The International Standards Organization has approved a standard measuring system for film/sensor sensitivity to light, which is named ISO. ISO values are marked as arithmetical numbers on photographic films or in digital camera settings...