This is the original clip from the YT video at normal speed and with no zoom.
This second video is the same as above except that it is at 25% of the original speed. It is easy to see how this slow motion helps you better see and analyze the swing in the video.
This third video is the same as above except we have applied a 2-fold zoom. So both slow motion and zooming are applied to make it easier to closely examine the swing.
This fourth video is the same as the above - a 25% tempo - but with a 4-fold zoom. tempo can be slowed even further to 6.25% if users think that would be helpful.
Pictures from video:
Video Surgeon allows you to print to paper or to file, one or a series of images. In the example below we have the same image shown but at different magnification levels. Click on the thumbnail to see the full sized image.