Important Functions of Digital Camera

A camera that produces digital images that can be displayed on the screen and stored in the computer is called Digital Camera. These days digital cameras also come with many mobile phones, which are called camera phones. Most of the cameras sold nowadays are digital camera. The picture quality of the digital camera is pretty good; that is the reason that people like this camera. Digital cameras work on optical systems, typically using a lens with a variable diaphragm to focus light onto an image pickup device.



In Toronto, Geek Square often gets computer repair house calls, involving digital camera setup with a PC or laptop. During those jobs, our computer technicians frequently do get asked basic questions related to digital cameras. In this article, we will try to answer those questions for every computer and digital camera user.

First, we would like to discuss the history of the digital camera. In short, the history began with Eugene F. Lally of the Jet Propulsion Laboratory, who was thinking about how to use a mosaic photosensor to capture digital images. His 1961 idea was to take pictures of the planets and stars while traveling through space to give information about the position of astronauts. As with Texas Instruments employee Willis Adcock’s filmless camera (US patent 4,057,830) in 1972, the technology had yet to catch up with the concept.



SOME BASIC FUNCTIONS OF DIGITAL CAMERA:

Controls:


It is necessary to adjust the camera manually or automatically.

 That way, a user can get a sharp and clear photograph.

Focus:


Focus is one of the most important functions of a digital camera. It brings the desired area or the desired part to the sharpest point possible. We usually set the focus manually, but in the latest models of digital cameras, this function is automatic.



Aperture:


Aperture allows a user to adjust the iris. It is also known as the f-number. This number usually controls the amount of light, which is to pass through the lens. Aperture also has some effects on the focus and depth of the field.



Shutter Speed:


Shutter speed is known as the controls over the shutter due to which it close and open. It usually measures in milliseconds. Shutter speed is the time in which the imaging medium and the light gets exposed to storing medium.



White Balance:


This function is the unique feature in the digital cameras to capture the white light as it was in the original medium. In this way, the colors in the imaging area appear naturally.



Metering:


The amount of exposure of light is called metering; we can also do manually so that the bright light areas and the shadow regions captured according to the photographer’s wish.
 
Auto-focusing:
Auto-focusing is a pretty good feature in the latest digital cameras, due to this camera automatically focuses on the object according to its size. Nowadays, multiple autofocus points in the viewfinder are also available.