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In earlier phase when digital cameras were only 2 or 3 MP’s, each megapixel mattered if you were making bigger prints. There was little observable difference between cameras with apparently different ratings. For instance, a 3 MP camera pretty much looks the same as a 6 MP camera, even when blown up to 12 x 18″ (30x50cm)!
Sharpness depends more on your photographic skill than the number of megapixels, because most people’s careless technique or subject motion blurs the image more than the width of a microscopic pixel. Color and quality are far more important theoretically. Some lower resolution digital cameras made better images than some higher resolution ones.
12 Megapixels Cameras
Resolution of 12 megapixel cameras pictures at 4200-pixels-by-2800-pixels pictures taken with the cameras print out in sizes up to 16-inches-by-24-inches with a clear resolution. 12 megapixels cameras are use for the pros, its detail needs to be managed and changed, enlarged, cropped and turned into the kind of work you see in National Geographic kind of channels.
Panasonic Lumix DMC TZ7
Panasonic introduced the Lumix DMC-TZ7 as the most up-to-date member of its commended TZ series. With 10.1-megapixel, a 25mm ultra-wide-angle lens and 12x optical zoom, the Lumix TZ7 (in the USA known as Lumix ZS3) is a valuable addition to a series of digital cameras that have won worldwide popularity for packing powerful zoom lenses into compact bodies. The Panasonic Lumix TZ7 is a powerhouse performer with massive adaptability.