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 format most used for storing and transmitting photographs over the internet. Most of digital cameras have the option to save images … Read more
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 as follows: 50, 100, 200, 400, 800, 1600, 3200 The bigger the ISO number, the greater is the sensitivity to light. … Read more
A Pixel is one of the many tiny dots that form an image in the computer’s memory, pixels may have different shapes, intensities, and colors (RGB or CMYK model). The more pixels used to represent an image, the finer will be the result. A Megapixel is one million pixels, is used for numbering the pixels … Read more
This is a component which can be mounted in front of the lens with the purpose of changing the direction of oblique sun rays that can affect image clarity. They have to correspond with the lens type. Lens-hood’s are very useful in sunny days but also in cloudy days. They are used especially when photographing … Read more
Filters can enhance the final image in both black & white and color photography. The purpose of lens filters is to alter the characteristics of light passing through the lens. Filters can reduce the light quantity, can modify the light color for correcting rendition deficiencies or can create special effects. There are many types of … Read more