Resolution, Pixels and Mega Pixels in Digital Photography
Thursday, April 2nd, 2009 Subscribe To Our Feed
Even in the most technical environments we can stumble across several confusions between the dimension and the resolution of the digital photography images. Sometimes, clients come in a digital photography workshop and ask for an image of 300 dpi, not realizing that this only refers to pixel density and gives no idea about the actual size of the picture. Because people are so used to normal photos, seeing a digital once does not tell them much about its dimensions. When talking about a classic picture, we can for instance say that is has 13 x 18 centimeters and everyone understands what we’re talking about. In digital photography, all three variables are needed to define a photo, length, width and density.
Digital picture can be divided into their smallest parts, with are called pixels. As centimeters are the defining units for tangible photos, pixels will be the ones that best define digital photos. For example we say we have an image of 2000 x 1500 pixels. No ordinary computer user could tell just how big a pixel is, or if it has dimensions, therefore another concept named image resolution must be used.
Resolution means the density of pixels per inch. Remember the dpi concept previously mentioned? With all the variables available, real life dimension can be calculated, for example when we want to print a picture and we are not sure what paper format fits it best.
In early days of digital photography, the captors that produce the instant digital image in the camera’s memory were a real problem. This is why everyone considers mega pixels so important. Nowadays, most digital cameras have this number written on them, and it shows what the maximum density of pixels that apparatus can collect at a certain moment is. (When taking a picture).
Because it is so striking, people look at for mega pixel number when they shop for a digital photography device. Spicy prices and a big mega pixel number don’t necessarily sell the best digital camera, you should look at battery life, at accessories and brand also. print digital photos
Technorati Tags: No Tags
Related Tags: No Tags
Possible Related Posts
Sony Alpha DSLR-A700 Digital cameraShopping For A Digital Camera Is Certainly Not The Easiest Task In The WorldDigital Photo Printing and Modificatioin
