Unfortunately, there was substantial noise apparent in many images produced by the Olympus Camedia D-540. The Olympus D-540 automatically sets the ISO speed for each shot, within the 50-400 ISO range available. Having said this, the D-540 contains a strong imager, though an increasing number of future cameras should surpass it. While many manufacturers have recognized the increasing awareness of consumers and their continual education regarding 'hot' and ineffective pixels, megapixels have begun to evolve into a more pure means of expressing resolution and image clarity, rather than an arbitrary means of general classification. This is 70 percent of the advertised 3.2 megapixel count, just pushing it into the 'good' classification. The Olympus Camedia D-540 recorded 2.20 megapixels in its images. Cameras that record 70-80 percent of the reported pixel count are perceived to be 'good' performers, while cameras scoring 80-90 percent are 'very good,' and those that score above 90 percent are extremely rare and 'excellent.' When this test is conducted, there is always some variance between the pixel count reported by manufacturers and the actual number of pixels used in forming the images. The results are analyzed with Imatest Imaging Software to determine the number of active pixels. To test resolution, we take several well-lit photographs of an International Standards Organization resolution chart. Click on the above image to view a full resolution version (CAUTION: the linked file is very large!)](./viewer.php?picture=Olympus-D540-StillLifeLG.jpg)
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