Originally posted by philbaum Thats a spectacular image and i went to your full size one to look at it. That grain looking noise doesn't bother me in the slightest, its the chroma noise that usually gets to me, and i don't see any in that image.
Thanks! To be fair, they don't all look this good. Depends on the lighting and contrast inherent in the scene - also on how "big" the detail is compared to the noise. I have other shots that were better exposed in camera (more like "real" ISO 1600) but appear to show *more* chroma noise for whatever reason. On the other hand, I also have ones that have even less.
Something I'm learning recently - highly colored red light is bad for noise. It basically turns your 10MP camera into a 2.5MP one (or maybe it's 3.3MP) by effectively rendering the green and blue color channels irrelevant. And it doesn't turn your camera into one with 2.5 million *big* pixels - they are still the same small pixels with the same amount of noise, but now there is less detail to help overcome the noise.
I use ACDSee Pro for PP, and it's chroma NR control isn't all that effective, actually. But what it does, it does without sacrificing detail much at all. So for images where chroma noise is more problematic, I'll sometimes peg that slider to the right. I didn't in this case - I left it at the default midpoint position, and added just a little luminance NR, which seems to be necessary in order for the chroma NR to kick in at all.
When I want the aggressive NR treatment, BTW, I use Neat Image - so far just the free trial version, because I use it seldom to be bothered by the limitations it imposes. Although the results are typically "plasticky", it is impressive effective at achieving that look with little effort.
Quote: This is a beginner question but: in my pp software, the exposure slider goes up to a +4.00, does that mean that each whole number is a stop of light?
Presumably. It's that's way in ACDSee Pro, and it totally makes sense for units to be EV. I suppose if you had a program where the slider went up to 100 or 255, you'd have assume those were just made up units.