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Olympus SP-550UZ resolution comparison
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To measure and compare the Olympus SP-550UZ's resolving power we photographed the Enhanced Digital Camera
Resolution Chart with it and a number of rival models, each using their
best quality JPEG and default image tone and sharpening settings. Each camera was tested at every aperture setting and the best result selected for this page.
The crops are taken from the original images, saved as High Quality JPEGs
in Photoshop CS2 and presented here at 100%. Each number represents 100
lines per picture height (lpph), so a figure of 20 means a resolution of
2000 lpph. |
Zoomed-into roughly 3x, the Olympus SP-550UZ delivers 1700 and 1750 lpph of horizontal and vertical resolution respectively. This is the kind of result we'd expect from a 7 Megapixel camera and you can clearly see the jump in resolving power a 10 Megapixel camera like the Canon G7 or Panasonic FZ50 can offer under optimum conditions. That said, the difference in actual real-life detail isn't that great between the SP-550UZ and the FZ50 as illustrated in our main Outdoor results page.
it's also interesting to compare the SP-550UZ against the an entry-level DSLR like the Nikon D40. This may only have a 6 Megapixel sensor, but compares favourably in terms of horizontal resolution, albeit falling a little behind in vertical resolution. The most obvious difference though is the sharpness and contrast of the SP-550UZ results below. Admittedly the Nikon D40 does deliver quite punchy results, but the SP-550UZ is clearly softer than many of its rivals. This can also be seen in many of our Gallery shots.
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Olympus SP-550UZ
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Canon PowerShot G7
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1700 lpph, 4.7-84.2mm at 18mm, f4.1, 50 ISO |
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2100 lpph, 7.4-44.4mm at 15mm, f4, 80 ISO |
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Nikon D40 using DX 18-55mm II
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Panansonic Lumix DMC-FZ50
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1750 lpph, DX 18-55mm II at 35mm, f8, 200 ISO |
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2100 lpph, 7.4-88.8mm at 12mm, f4, 100 ISO |
Olympus SP-550UZ
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Canon PowerShot G7
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1750 lpph, 4.7-84.2mm at 18mm, f4.1, 50 ISO |
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2150 lpph, 7.4-44.4mm at 15mm, f4, 80 ISO |
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Nikon D40 using DX 18-55mm II
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Panansonic Lumix DMC-FZ50
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1650 lpph, DX 18-55mm II at 35mm, f8, 200 ISO |
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2100 lpph, 7.4-88.8mm at 12mm, f4, 100 ISO |
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