I'm thinking of picking up an A6000 for long exposure shooting, my only worry is that with the increased megapixels there will be more noise in the dark/shadow areas. My NEX-6 photos are relatively noise free at low ISO with long exposure. For those who shoot long exposure photos with the A6000, how do you like the results? I also shoot with the Olympus E-M10 and the noise is noticeable even at base ISO in the same conditions (even with long exposure noise reduction set in the menu). Using the Olympus as a baseline and considering that the A6000 should have similar pixel density, is it worth the upgrade from my NEX-6 for this particular application? Thanks for any opinions!