Sony R1 @ ISO 400
Canon 5D @ ISO 400
Sony R1 @ ISO 400 processed with Noise Ninja
پس به نظر میرسه که نویز نینجا در صورت خرید R1 میتونه کمک زیادی بکنه
این هم نظر مایکل ریچمن
Noise
My initial tests have not been rigorous. But, enough so that I can say that the R1 is essentially noise free at ISO 160 (its base level), though at ISO 400 it starts to get a bit noisy. This is compared with a contemporary Canon DSLR, such as the 20D or 5D, which remains essentially noiseless till ISO 800.
Now, don't get stressed over this. Many ISO 400 shots will appear noise free, but if you look in the mid-tones and shadows closely you'll definitely start to see chroma noise (blotchyness).
The examples below were shot indoors in very low light with a Canon 5D and 24-105mm f/4l IS lens and the R1. The shot was wide open at f/4, and 24mm focal length, both at ISO 400. The full frame isn't relevant, but what you see below are 100% crops that show that beginning at ISO 400 there is very definite chroma noise visible in mid-tones, especially because the shot is underexposed by about 2 stops. (These are files processed in Camera Raw with no modifications other than adjusting white balance.