I have avoided posting "UHD" videos to YouTube this long because my limited (25 GB per month) Internet account does not allow me to waste such activity. I have noted a few times that I do not actually view videos in "UHD". Most of what I watch is less than 720p, and I watch 720p much more often than 1080p. This is the second "UHD" video I have posted that was made using the Yi-M1. I used three lenses, none of which was from Yi Technology. This is not because I am dissatisfied with the Yi Tech lenses -- actually I like them both, but I needed to use the Panasonic 14-42mm F3.5-5.6 zoom because it is "new". This "kit zoom" has "plastic-on-plastic" parts, just like the Yi Technology zoom lens, and many others. Such parts tend to be "sticky" and need to be "worn in". So I used that lens just so I could "wear it in". I used the SLR Magic 8mm F4 lens because it was the widest I have, and though I have been critical of its quality, I recognize that it can be adequate as long as editing is simple (changing exposure is ok, but cropping is out of the question). Finally, I used my 50mm F2.0 SMC Pentax lens because I was planning to use a focus pull. In fact, I recorded the focus pull, but the tripod was not steady enough, so in the end I cut the focus pull and just used the clip after the focus pull was done. "[UHD] 20190515 Toronto High Park Cherry Blossoms"