Sources: DPReview, Nikon
quote: But that hasn't borne out. The D1 had like a 2.5 megapixel sensor; according to the conventional wisdom that thing should just be a low-light monster. But it isn't.
quote: The D1 isn't a low-light monster because it doesn't incorporate all the advances made since its introduction.
quote: If you built a 2.5MP APS-C sensor with the technology of today, it would fare much, much better in low light.