Ok, the title doesn't really explain but I was hoping to get a little education on gradient banding. It's been pretty gloomy around here so I've been taking a lot of dull/dark photos. I started noticing some gradient banding in the dark grey areas on images from my D750 and 24-85. This is to be expected I'm sure especially when flat grey areas of a scene are underexposed. I recently downloaded Capture NXD from Nikon just to try it out because I'm not that happy with how Aperture is handling the RAW NEF files from the D750 (it did great with the D90). I think Capture handles them better. I've also noted that the gradient banding and artifacts aren't as noticeable in Capture NXD. What causes the gradient banding? Underexposing flat dark areas for sure. I've read that low color bit (8 bit) monitors can too but with Capture NXD doing a better job I'm wondering if it's something with Aperture (maybe even a setting?). Edit: Both of these are straight out of the camera with no editing other than the RAW processing that both do. They were underexposed on purpose too as I was looking at this banding and vignetting. They are a bit out of focus because well....it happens. 1/40, f/2.8, ISO 200 (not the best settings in these circumstances). BTW...side by side comparisons I like how Capture NXD renders the RAW files better than Aperture. I just don't like working in Capture at all (and I don't get my NIK plugins). I'm not sure if you will be able to tell the difference with the screen shots I've attached. You're milage may vary but on my MacBook Pro monitor (non retina) there is a big difference.