The digital camera

The digital camera

The digital camera was invented by Steven Sassoon, engineer of Eastman Kodak. He received the National Medal in Technology and Innovation for his invention in 2009.
The digital cameras allow taking photos and recording videos, with movements and sounds.
The images are recorded through a sensor, stored in a memory card and can be seen and deleted on the camera monitor.
There are many factors that can influence the quality of image or video: * The objective lenses that lead light to the sensor * The algorithm, which means the software of the camera itself * The resources that the photographer uses to have a better result
The sensors convert light into electrical charges, and its resolution is measured in megapixels.
The higher number of megapixels, the better the picture quality, because its size will be larger and will allow zoom without loss of quality.
For professional photography the cameras must have high quality and high resolution.
Most of the sensors detect light in the three primary colors. Once the camera records all these colors, it combines them to create the image.

There are various types of cameras: * Compact digital cameras – These cameras were made to be small, portable, for casual use and easy to use. The image quality and the advanced features are not so good as the ones of the professional cameras. Some digital cameras are so small, credit card size, and they have lens assembly retracted. * Bridge cameras - these cameras have a small sensor, fixed lenses, the features are more advanced and the focus is automatic. Lenses make a great zoom and are quick opening * Mirrorless camera with interchangeable lenses – the sensors are larger and the lenses are interchangeable * Digital single lenses reflex cameras – lenses are interchangeable, the sensors are much larger than the other cameras and the focus is automatic * Waterproof digital cameras - They are used in photography underwater,