The greater a Megapixel camera, the more good quality pictures. This is the biggest myth in the camera world, and that it is not entirely accurate. Companies and camera stores actually clearly know this, but they just continue to try to maintain this perception is wrong, not only maintain, but they would continue to strive to inculcate these ideas to the consumer. Why? as this that cause companies and camera stores that can benefit most.
Simply add the number of its pixels, with no other changes are more meaningful, they can create a new type of camera, and the consumers who deceived the race for the race to upgrade its camera.
While it is important to REMEMBER megapixel high, if not accompanied by changes in the size of the sensor architecture changes or changes in the quality of the camera lens, the image quality of the camera is worse. so the function of the megapixel that is actually big for what? the key is on the Per-scale. The greater the resolution of a camera (megapixel), then we can print images with a larger size, but its problems, the needs of the average layman the only print in the size of 4r or 10R alone, that can be done by a very good camera with 4 megapixel resolution.
In addition to the amount of per-print, large resolution also can be useful when you and I often do in the Crop foto. So if you are not a user of print or cropping often do, with a 6 megapixel camera is more than enough.