As some of you know, I love night landscapes & have done lots of long exposure noise testing. Spent March in Calif both vacationing & tending aged relative. Was able to do shooting 4 nights in 3 locations. Had brought along my newly modified full spectrum E-M5, MZ 12mm & Kowa 8.5mm plus a new E-M5 mkII & MZ 8mm f1.8. Over the next week or so, I'll be posting some results & further comparisons. My goal on this trip was to decide if m43 is capable of yielding night landscapes that satisfy my IQ standards when printed as large as 16x20. Posting here forces me to organize my thoughts & give me the chance to ask your input. Have yet to get prints made but will soon. Until then, I'll report what I can see on a 2012 27" iMac. And maybe you'll get some pointers out of my efforts. I'll start with this image composed of 11 captures from the MkII & 8mm FE. The star field is a stack of 10 images ISO1600 f2 25 sec. stacked in Starry Landscape Stacker. The landscape is 4 min. with in camera NR turned on also ISO1600 & f2. I then applied every trick I've learned so far to merge these in PS. As you can see the new Oly FE yields impressive images even wide open. Em21600.jpg by tradesmith45, on Flickr The EM5 mkII can yield really good star field images especially w/ a little stacking. But as I've reported before, the sky is the easy part for one of these - except perhaps for WB w/ light pollution. I was pretty disappointed in the substantial amount of noise in the long exposure of the land. My previous testing seemed to show ISO1600 would be satisfactory for the MkII but I now feel ISO 800 might be the limit if the subject is dark rocks. But that would mean 4/8 min. for the exposure. As you will see later, light subjects & shorter exposures @ ISO1600 look maybe OK from the mkII. To deal w/ noise in the landscape, I 1st applied NR in LR & then in PS used a mask to blur the noise in the water while leaving the rocks/land un-blurred. I used HPS to sharpen the rocks/land only. WB was a major challenge in this image. There's a light house to the left & a small town to the right. I beat the sky up pretty much maybe too much using a PS action I bought to remove light pollution. I'm finding I often end up w/ muddy brown sky by the time I'm done reducing LP. Any suggestions you have about this would be greatly appreciated. Stacking causes the stars to go in size a bit due to lens flare (& the FE has some). I've got another PS action that is supposed to reduce star sizes to compensate but I haven't tried it yet. Lastly, this location is a great example of why its better to be able to use shorter exposures. I'm on the edge of a 50' cliff, in the dark, light wind blowing and had to extend the tripod to see the ocean well. This will challenge anyones balance & sensitivity to vertigo as you stand up to change settings. Even with focused attention, it was stressful & I didn't want to be there long.