I know it is that everyone thinks the more the better when it comes to your digital camera features. This theory is especially true in the case of mega pixels. I myself have been guilty of sizing up the number of mega pixels from camera to camera in the electronics store, but is this really necessary do we really need more pixels? To answer this, you must first know what you are going to do with the images. Before we address that issue, let's make sure we know what a megapixel is:
Megapixel is a fancy term for "million pixels". A single pixel is the smallest unit of color that a camera's sensor is able to capture. The more pixels the sensor can capture the sharper the image the camera can replicate. When comparing cameras, mega pixels can be abbreviated as "MP".
So how exactly do we know how many pixels we need from our camera? The first step is to have in mind what your intent is for your images. This is important when the purpose for the images require a high resolution digital photo. Photos for only the computer screen need only a low resolution image, making any camera adequate if that is your only need from your photos. High resolution photos are most frequently needed for printing or developing pictures. Using this example, lets use the goal of printing photos to address our question about mega pixels.
The second task is to determine the largest print size we would like of our photo. Sure, it would look cool to have poster-size images all over the house of our sweetheart, but are we really going to go through that expense? I assume for most of us, poster size prints fall into the "rarely or never" category. Having ruled out extreme sizes, we have the three most common photo sizes to consider. According to online photo labs, the following minimum resolutions are sufficient to produce high quality prints:
4 x 6": 640 x 480 pixels (0.3 mega pixels) 5 x 7": 1024 x 768 pixels (0.8 mega pixels) 8 x 10": 1536 x 1024 pixels (1.6 mega pixels)
I have found from my own experience that my 3 megapixel camera is the minimum that I would want for an 8 x 10" print. Any less will start to show pixilation upon close inspection. Through trial and error, I would suggest doubling the above megapixel recommendations when considering a camera. This tutorial has shown that if we only want 4 x 6" prints, then 0.6 megapixels are plenty. Most digital cameras start at 2 mega pixels, which is adequate to generate quality prints up to 5 x 7".
Once you know the minimum mega pixels required for your image needs, you can move forward to other aspects of your camera in order to be prepared to capture whatever moment comes your way.
About the Author:
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