Quote Originally Posted by arthurking83 View Post
Wrong! with digital it's the other way 'round. A shorter exposure time technically gives a better RAW in terms of signal to noise ratio. This is clearly evident with the fact that a long exposure requires the use of in camera LNR(long exposure NR).
While a longer exposure will produce greater noise due to heat, I wouldn't necessarily agree that in-camera noise reduction is the solution.

I personally never use in-camera NR, as the camera takes a dark exposure which lasts the same amount of time as the original exposure, and then applies dark frame subtraction.

Noise reduction is something that can be done in post-processing by a far more powerful CPU than the one inside a camera, and I don't spend two hours taking a one-hour exposure.