Ken è un vero genio... mi domando per quale motivo a me non vengono in mente certe prove...
Nel suo test sulla D300 ha pensato nientepopodimenochè di paragonare la resa a 6400 ISO della D300 con quella D200...
Avete capito bene... la D200 non arriva a 6400 ISO ? E il buon Ken che fa ? L'aiuta con Photoshop... poi gli applica Grain Surgey 2.
Continua dicendo che il file della D300 è meno nitido di quello della D200 a causa della riduzione del rumore e conclude dicendo che i file risultanti sono paragonabili ed orribili... La D3, invece, è tutto un altro pianeta... bontà sua...
"The D300 shot is cropped at 100% direct from the camera, large JPG, 50mm f/1.2 lens, ISO 6,400, f/2.8 at 1/2 second. The D200 was pushed to ISO 6,400 in Photoshop from a Large JPG, I cranked the color a bit to match roughly the D300 (which I set to +3 saturation as soon as I turned it on) and I applied Grain Surgery 2 (at defaults) to the D200 image (otherwise the D200 was noisier and even sharper).
The D300 shot looks blurry because of Nikon's noise reduction, used to hide the noise. The D200 is much sharper when shot at 6,400. The D3 prototype I tried was far, far better than any of these. Both of these look awful at ISO 6,400, and the D3, even as a prototype, looked perfectly usable without having to make excuses.
I'll post more tomorrow; It's bed time tonight. These fast shots under tonight's full moon showed me that high-ISO noise is the same between the D200 and D300, and the claimed speed increases are simply cranking up the noise reduction. More tomorrow, and of course after I make more than the 50 few shots I did tonight my opinions may change, too. "
I masochisti possono leggere qui l'intera recensione.