I posted my first 4K video from the Yi-M1 to YouTube on Sept. 29, 2017, but I did not post a link to it "here" because I did not feel that it warranted bringing it to this forum's attention. It was a good enough video for my purposes (to provide a record of an event related to the Invictus Games) but it was not up to a high technical standard, and furthermore, the reasons for its short-comings were not primarily due to the hardware. It was partly circumstantial, and partly due to a poor choice on my part. I had a backup camcorder with me (Sony CX240B) which I knew would give me a better chance for a good video, but only in Full HD, yet I decided to take the risk on the Yi-M1 anyway. I will explain the situation a bit: Lately my Condo management has decided to do work on the building which requires me to re-arrange everything. And yes, I work out of my condo, so that means re-locating things I use for work, including piles of notes and references, and equipment. So I am pressed for time and generally disrupted in everything I do and not by my choice. I wanted to cover the Invitus Games, but I did not have the time, except for this one event -- an evening concert. The week before I had a chance to record some Fall "stock" clips using the Yi-M1 and its kit zoom. I used manual focus, and used it on my usual monopod. That was the closest I came to practicing with this setup. For this concert, I did not know the venue. Toronto City Hall can be set up in different ways, and this time it had been divided to provide an area for "Wheelchair Tennis". I had not seen how this was done. But I knew I was going to arrive late, so I expected that I would be far from the stage. So I decided to use my new Olympus "ED 40-150mm f4.0-5.6 R" manual zoom lens. For 4K, with the 2.8x crop factor, this performs like a 112 - 420 mm zoom on a 35mm camera. My last 4K attempt using the 12 - 40mm kit zoom for a "music concert" had turned out good except for the focus, so it was not unreasonable to think I could do this, as long as I stayed, perhaps, below 60mm. But this time I would be trying manual focussing. The big issue was that I did not have time to practice with this setup before the event. Normally, I try to practice with my setup the night before recording--every time. The difference is that when a setup is new to me, I practice longer. With a setup as new as this, I would have liked an hour to check myself out on it, and maybe some time on my backup camcorder too. But I did not get a chance to do any of my usual practice. I just charged my batteries, packed up my gear, planned the trip, and tried to get some sleep. When I arrived and setup, I found that the crowd was not so bad. The lens forced me to setup further away than I would have with the kit zoom or the Sony. The stage was very wide, which meant I was going to have to manually focus a lot from one end of the stage to the other. And the stage had multiple levels, so I could not lock the up-down tilt on the monopod. In effect, it was like handheld except the camera height above ground was constant. With time to think it over, I could have packed up the Yi-M1 and used the Sony CX240B. But I wanted the 4K video if possible, and my last video turned out fairly well after stabilizing in post. So I decided to give it a try. The result was worse than I expected. The lighting was dark. I had expected "normal" spotlights. That did not happen. Also, because I was not as familiar with the camera as I thought, I mistook the "Mode" wheel for the EV control. I turned it and the EV did not change. What was going wrong? Also, I could not set "manual focus with peaking". I could only set "manual focus". Two or three songs into the show I looked at the camera and realized what I had done. I had turned the Mode wheel, eventually to Panorama instead of setting the EV. Luckily, there was no effect on the video. Moreover, the lighting apparently did not need much EV correction. I think EV = -0.3 would have been best, but no adjustment at all was good enough. As for focussing without "peaking", I found it was not worse than with "peaking." I find that the "peaking" only helps me if I have magnification, and that is never available during video recording on the Yi-M1. But the worst thing was that without the locked tilt, and no stabilization, at that distance, the camera shake caused blurred frames that I could do nothing about in post. Stabilizing in post does work as far as aligning the frames, but a blurred frame is still blurred. So how much of that was due to my lack of practice the night before? And did it make sense to use the Yi-M1 in this situation when I had the Sony CX240B ready in my camera bag anyway? Did I learn anything? Yes, In this situation I would not bother with the Yi-M1. I would drop back to the Sony and bring home a better Full HD clip. But even after I explain all this does it help anyone else? I do not know. All I can think is "maybe". So I decided to post this for now, but do not be surprised if I replace this someday with a link to a better 4K video, or at least one that shows something more specific about the camera. "[UHD] 20170926 James Blonde - Cynical - Invictus Games Concerts" ""