The scene is very challenging; only 2x5W which is just enough to read a book - so not much light is available.
Noise Reduction : High ISO Noise - Normal Profile : both vivid Sharpening : both 7 Lens Model : Tamron SP AF 17-50mm f/2.8 (A16)
Noise is everywhere - even with ISO 200 set is visible with both Cams; D300 starts very good at 200 and 800; with 800 a D300 Noise pattern is visible whereas the D7000 noise is more regular and much less colour noisy. with growing ISO D300 falls much faster in Noise and Texture then the D7000; I would say ISO 3200 or even 6400 with Nikon D7000 in many cases is good enough for smaller prints.
Also you can see that D7000 is able to produce sharp and detailed pictures. To judge about noise usually you should sample down the D7000 Images to 12 MP and start the fair comparison.
Conclusion : yes D7000 is superior but D300 is still doing a very good job too.
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