4 ms·Really cool camera and very nice set of soldering "demos", including without flux.by alhirzel 2y agoReally cool camera and very nice set of soldering "demos", including without flux.the_arun 2y agoThey have used microscope to record it.the_arun 2y agoWhy downvote? It is true. Have you seen the description in the youtube? It says - Microscope used in this video is Keyence VHX-7000N https://www.keyence.eu/yt-kib-vhx-0924 https://www.keyence.eu/yt-kib-vhx-0924