CHG_CANON wrote:
No, if the image was under-exposed at ISO-1000 on the D610, it probably won't look any better (and still underexposed & noisy) at ISO-3200 on the D780. Although you'll get better higher ISO performance with a newer sensor and processor, you'd likely be better served looking at (a) wider-aperture lenses, or (b) VR support, or (c) IBIS support.
Now I got confused. Isn't a faster camera (higher ISO) would yield less noise. For instance for normal exposure, at ISO 1000 for my D610 would yield the same amount of noise at higher ISO for D780?