Hi All, I've just bought a new E-M10 with a view to replacing my Canon 700D with something smaller and more versatile. We had a break in the usually bad weather on Friday night so I could get my telescope out and do a few test shots as a comparison. The conditions weren't great with thin cloud at high altitude drifting in and out from time to time, seeing conditions were average(ish). I live in the middle of a big town so light pollution is a problem, especially when the seeing and clouds are a factor. All photos are ISO 800, 30 second exposure on a William Optics ZS71 refractor telescope. I've stacked 30 exposures in Deep Sky Stacker with dark and bias frames. The Pleiades images are lightly processes in Photoshop to show all the nasties with a level expansion and setting the grey point. The Orion Nebula image has been more heavily processed... Comparing the E-M10 and 700D images, shows very little advantage from one camera to another. The differences in the final images could be as much down to the varying conditions as to the differences in the cameras. This also follows my impressions with normal photos taken during the day. I think that my 700D kit will be going on eBay, I honestly can't see myself using it any more having tried the E-M10. Olympus E-M10 - Pleiades M45 Canon 700D - Pleiades M45 Olympus E-M10 - Orion Nebula M42 Let me know what you think! EDIT: I have spent a bit more time processing the images to tease out as much details as I can.