Conclusion: With 72 points in the overall evaluation, the EOS 7D and the Nikon D300s are on the same level and thus share the test result in the performance comparison of the top SLRs with the APS-C and 4/3-format sensor. (In ColorFoto 11/09, the test with the pre-production model of the EOS 7D still had an advantage of 1.5 points compared to the D300 s. The serial model could not quite reach this value in the test.)
Canon's 18 megapixel model has a higher resolution of around 200 LP / BH compared to the Nikon D300s (12 Megapixels), but this resolution does not bring any advantage in the overall evaluation. The EOS 7D and the D300s are comparable in dynamics and noise to ISO 1600, but Nikon has less texture loss.
In this case, only the Pentax K7 is better, but much more noise and less dynamics is available - between 8.5 and 6.5 iris in the measured range between ISO 100 and 1600, while Canon / Nikon between 10 and 8.5 Blinds have to offer.
Pleasing for Sony: In comparison to its predecessors, the Alpha 550 has clearly increased its image quality. At a price of 850 euros, it is by far the cheapest camera in this test field, but it has to make do with a plastic case that can not be compared to the splash-proof Magnesium housing of the competitors.
A pivot monitor is available next to the Alpha with the Olympus E-3 and the Panasonic GH1 (whose monitors are not only in a plane like the Sony, but on all sides swivel). In the live view with additional sensor and fast-paced live AF, the Sony scores. A built-in image stabilizer (sensor shift) is available at Olympus, Pentax and Sony. When it comes to video, Panasonic has the nose with the GH1: Full HD video plus the only usable autofocus in film mode.
The probably most catchy operating concept has the Canon to offer, but one learns the many buttons, levers and switches of the Nikon over time to appreciate.
Here you can find detailed previous tests on
Pentax K-7
Panasonic GH-1
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