TALKIN’ ’BOUT A RESOLUTION
WHY THE NUMBER OF PIXELS QUOTED FOR A CAMERA DOESN’T ALWAYS HAVE A CORRELATION WITH HOW ‘GOOD’ THE END IMAGE IS
Just going by specification, the 24megapixel resolutions offered by the Canon and Fuji cameras on test here would seem to out-gun the Olympus’ relatively humble 16.1 megapixels. But, of course, that’s only if we’re playing the numbers game. Pixels aren’t everything, because the ability of the lens in use to resolve all that information, and the physical dimensions of the sensor onto which light is directed, also play their part. The Canon and Fuji offer larger APS-C-sized sensors, as typically found in DSLRs, while the Olympus uses the smaller Four Thirds type. But if using a smaller chip, cramming less pixels onto it makes sense, because overcrowding can lead to visible image grain or ‘noise’ the darker the shooting conditions get.