I am going on a 3 day trip for astronomy tomorrow. I have ID 4 abandoned properties to image and video. I will have a telescope on a goto equatorial mount to continue on my "Herschel" project, but will have either my Gx8 or EP5 (depends which lens I have on which camera at the time for "piggybacked" imaging. So in a bag that I could get one D7xxx body and a 80-200 or two smaller lens, I have: Gx8, EP5, 14+wgc1, 9-18, 35-100 4/5.6, and 75-300 II plus Canon 500D and various filter and 5 batteries in the bag. Before I would have struggle on what to take on a non-photo trip. Staying home are arguably my best lenses: 12-35, 100-400, and 7.5mm but size is all important on this trip. The 14 is used for car window mount moving video and widefield astro with the wgc1. The tripod for my 20 x 80mm binoculars is my Manfrotto 055 CF and 501 HD video head, which of course is the head for my video/still stuff. For me m43 has significant advantage in the way I use my photo gear, and I can not think of any other system, THAT FOR ME would work as well.