低感画质和高感画质_低感画质 a72_低感画质

只要传感器感光技术相对上代没有进步，还硬把像素提得过高的情况下，不光高感画质，连低感也会差

比如D800的SNR 18%信噪比连EOS 5D都不如

D5200在ISO 400甚至ISO200下100%看图，暗部噪点就相当明显了

NEX7也是这个德行，100%图的高感、低感画质都不如NEX-5N

42.3dB Nikon D4

40.7dB Nikon D3s

39.7dB Canon 5D Mark3

39.7dB Nikon D3

39.4dB Nikon D700

39.4dB Canon 1D Mark2

39.4dB Nikon D800E

39.3dB Canon 1D Mark3

39dB Nikon D3x

38.9dB Canon 1Ds Mark3

38.9dB Canon 5D Mark2

38.7dB Pentax K5

38.6dB Canon 5D

38.5dB Sony A580

38.4dB Canon 1D Mark4

38.4dB Sony Nex-5n

38.4dB Nikon D800

38dB Canon 1Ds Mark2

38dB Nikon D5100

38dB Nikon D7000

37.9dB Canon 350D

37.9dB Canon 20D

37.9dB Pentax K-01

37.6dB FujiFilm S5 pro

37.6dB Canon 40D

37.5dB Canon 10D

37.5dB Nikon D40x

37.4dB Sony A300

37.4dB Canon 1Ds

37.3dB Sony A330

37.3dB Canon 300D

37.2dB Canon 1000D

37.2dB Sony A230

37.1dB Pentax K10D

37.1dB Samsung GX20

37dB Pentax kx

37dB Canon 400D

37dB Sony A200

37dB Konica Minonta a5D

36.9dB Konica Minonta a7D

36.9dB Sony A700

36.9dB Sony A35

36.9dB Nikon D200

36.9dB Nikon D5000

36.9dB Canon 30D

36.9dB Sony A35

36.8dB Sony A55

36.8dB Canon 1100D

36.8dB Pentax Kr

36.7dB Pentax K20D

36.7dB Nikon D3000

36.7dB Pentax 645D

36.6dB Canon 50D

36.6dB Nikon D60

36.6dB Canon 450D

36.5dB FujiFilm X1

36.5dB Nikon D90

36.5dB Nikon D300s

36.5dB Sony A850

36.5dB Nikon D3200

36.4dB Nikon D3100

36.3dB Sony A900

36.3dB Sony A33

36.2dB Canon 500D

36.2dB Nikon D80

36.2dB Nikon D40

36.1dB Sony A380

36dB Nikon D50

36dB Sony A350

35.9dB Sony Nex-7

35.9dB Sony A290

35.9dB Sony A100

35.8dB Sony A77

35.7dB Sony A560

35.7dB Sony A390

35.6dB Nikon 1 J1

35.5dB Canon 60D

35.4dB Samsung NX11

35.4dB Sony Nex-C3

35.4dB Nikon 1 V1

35.2dB Sony A500

35.2dB Canon 550D

35.2dB Samsung NX100

35.1dB Canon G1X

35.1dB Nikon D70

35.1dB Canon EOS 600D

35.1dB Sony NEX-3

35.1dB NIkon D70s

35dB Panasonic GH1

34.9dB Nikon D2xs

34.9dB Nikon D2x

34.9dB Sony NEX-5

34.8dB Canon EOS 7D

34.8dB Sony A65

34.6dB Sony A550

34.5dB Nikon D2h

34.4dB Sony A450

34.1dB Olympus E5

33.9dB Olympus EP3

33.7dB Olympus EPL2

33.6dB Panasonic GF2

33.4dB Panasonic G3

32.7dB Panasonic GH2

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