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Porownanie High ISO u43 (GH1) z liderem High ISO mid-range DSLR - NIKON D90:
http://www.cameralabs.com/reviews/Pa...H1/noise.shtml


At first glance, the Lumix GH1 appears to roughly match the Nikon D90 up until the 1600 ISO mark, where noise levels on the Panasonic become more visible. This in itself isn’t a bad result at all for the Lumix GH1, given its physically smaller sensor, and the fact the D90 is a leader in high ISO performance. But look at those crops more closely and, as discussed above, you’ll see the amount of real-life detail delivered by both models is actually roughly the same. The D90 may be cleaner by default from this point on, but isn’t recording significantly greater detail.

So while we’d say the D90 enjoys around a one stop advantage over the GH1 in terms of visible noise levels from 1600 ISO upwards, the actual amount of detail recorded is very similar. This is a very impressive result for the Lumix GH1, given the larger sensor and proven reputation of its rival here.