Sorry, they do not understand "compact system camera" :- The Olympus Pen Lite E-PL7 has interchangeable lenses. The E-PL7 is not a "compact" camera. It is an updated E-M10 without the EVF. The E-PL7 is a mirrorless micro four thirds system camera: I have one and it is compact, it is my "pocket" camera, it's fun to have a tiny 16Mp camera that takes top quality pics. The sensor on M43 cameras is some 2cm closer to the mount than a typical DSLR e.g. Canon, because it has no mirror. Yes it can mount with adaptor on the telescope focus mechanism with the correct adaptor(s) The E-PL7 has no remote cable shutter release but I suppose we can use WiFi control. The E-PL7 tilt screen is at all the wrong angles on a telescope, so is wife's GX7. The 130SLT is actually my wife's telescope, as I'm a physicist-engineer (radiological metrologist) I get to be the tech support. Hence I prefer one of my Panasonic M43 with their fully articulated screens. My G5 cannot do time lapse, my GH4 costs an arm and a leg. Mirrorless cameras do have the sensor exposed when the lens is removed (permanent live view). I got some black smuts on the sensor changing the lens in the dark (I can clean sensors but prefer not to) Be careful. Hence I recommend always fitting a Barlow and/or eyepiece in a clean room to seal the sensor housing up: black smut problem solved. Due to the short sensor to mount distance I am getting some issues with back focus. I find something like a thin adaptor ring onto a 2X Barlow w/o eyepiece or a 2cm M43/T2 adaptor onto a "short nose" is giving best results so far as other configurations with an eyepiece inserted seem to want the camera closer to the secondary mirror than the focus mechanism will permit. Either that or I get very severe vignetting. If an eyepiece will fit inside the T-adaptor i.e. 37mm long, then an eyepiece can just about be used; most are longer or too wide. I have not solved this yet, in fact I came on the forum just now to see if I could find out how others are mounting cameras to reflectors. My alternative is to put the camera on the Star Adventurer EQ mount with a 500mm or 800mm reflex lens i.e. a telescope lens, but that lacks the Goto of the Celestron. I am old enough to remember clockwork EQ mounts Alignment can be fun because you have to see Polaris and it doesn't always cooperate.