Digital Camera Basics

Digital Camera Basics

With so many different types of camera’s available, it often gets complicated when figuring out how the various specifications can become a boon to everyday photography. There are various camera parts such as the lens, sensor, flash card, and battery. Camera body design also has an impact on the way the equipment is held and pictures are clicked. The size has an effect on the dials, buttons, as well as other hardware. The number of manufacturers, product models, pricing etc. can be overwhelming, but again even a short list of digital cameras often become tough to analyze.

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Few of the tech aspects associated with digital cameras form the basics of the lineup. With an insight into the few basic factors will hopefully give you a clearer idea when it comes to understanding digital cameras. Here are few tips that will ensure you can assess the best range of digital cameras in this regard.


Those tiny little square elements that form a picture and are the base of an image are known as pixels. These squares are composed with their own colors and when compiled together in one portrait give clarity to the image. It ensures that photographs are their original size and appear smooth. However, when images are magnified, pixels can be seen clearly and with magnification you can distinguish each of these colored pixels individually.


The maximum number of pixels in an image is basically known as megapixels. It is the criteria that classify cameras and their quality. In fact, today most cameras are marketed based on their megapixel specification only. But, the fact is that a higher megapixel does not guarantee better quality images. The count is attained by multiplying pixels in horizontal and vertical lines. This isn’t the single most criteria to consider the overall impact of an image. Larger image has got nothing to improve the picture quality of a user viewing images on computer. Megapixel quality matters to those photographers that make prints of their images. Higher the megapixel count more is the ability to create accurate and larger prints.

Optical and Digital Zoom

It is important to see what kind of zoon a camera lens is providing. The factor works well on a film camera where the lens moves to produce magnification physically. Digital zoom magnifies the image and crops the portion outside the circuit area. The nature of the process causes image quality to suffer as a result. In between both optical zoom is a far more desirable feature. Again, both image qualities cannot be compared.


Small sensors in digital cameras capture the image first prior to transferring it to the memory card for storage. Available in between 20 to 40 millimeters, sensors come in various sizes equivalent to camera film negative. CMOS (Complementary Metal Oxide Semiconductor) and CCD (Charged Couple Device) are two sensors found in cameras. CCD sensors are much superior in quality and come in expensive cameras whereas CMOS sensors are found in much cheaper cameras.

Aspect Ratio

Representing the image shape or the height aspect ratio describes the image shape in digital cameras. It impacts the way images appear to fit on screen in a suitable aspect ratio. Special quality paper is available to ensure that higher quality images are printed in the correct aspect ratio.


Images must be transferred to a connected device such as computer or external hard disk for storage purpose. This is then connected directly to the printer. With easy plug-n-play support, lower models still offer exclusive connectivity. To enhance the data transfer speed choose a 2.0 USB that supports 40 times increased connectivity. Even flash card memory readers are convenient alternative to access data like a local disk drive.