D300 Long Exposure Night Test
So tonight I took my D300 out to Mesa beach and shot a few tests to see what it's really capable of. The following shots are all taken with the D300 set to Manual, ISO 200, f/6.7, and roughly 5 minute exposures. Lens is a Tamron 17-50mm f/2.8 with a UV filter on (forgot to take it off... oops). None of the pictures in this review have had any post processing done besides levels/curves and White Balance tweaks.
Let me first say that the camera is a blast to shoot with after my D70. It's much easier to align dark night landscapes in the bigger viewfinder. The rear LCD shooting info display is nice, though I found it a bit bright, taking a bit away from my night vision, so I stuck to the lighted top LCD.
Second, and more importantly, the shot above was taken with NO NOISE REDUCTION AT ALL. That's a 5 minute shot, in relatively warm conditions, with no perceivable amp glow or extraneous noise. There are two or three hot pixels, but these are even easier to deal with than dust (which the D300 shouldn't suffer from too bad, what with the dust removal feature).
I can't emphasize enough how freakin ecstatic this makes me! This cuts my shooting time in half, allowing me to experiment more and make the most of the changing light and weather conditions at night. I'm as happy as Dick Cheney with a shotgun and an unlimited Pentagon budget. It's that good.
Here are some 100% crops:
From picture above. Noise reduction off.
From next full sized picture below. Shows top right corner of the image. Noise reduction off.
For reference, this is from a similar exposure with Long Exposure NR turned on. I can't see a whole lot of difference.
Next full moon, I'll try some light painting to see how much better the CMOS sensor handles light painting. My D70 shots always had significant blooming that I thought was chromatic aberration, even though it showed up with lenses that I thought exhibited next to no CA any other time. Till then, here are a couple more samples, sans noise reduction:

Labels: D300 night "long exposure"