Schlieren Imaging has always been a very narrow and specialized field of imaging. It can visualize air perturbations in a fluid-like way that can show the reach in this case of someone’s breath and heat dissipation to see if a mask makes a large enough difference in transmission of infected airborne particles compared to no covering.
By using a Phantom VEO4k 990 slow motion camera at 938fps and a speckled background with specialized angled lighting, researchers were able to test a variety of masks while coughing to see the effects. You can watch the video posted here and also check out the full study available here if you want to dig deeper.
Panasonic has released a Beta tethering software package for use in Windows 10 that allows you to control your Lumix camera from the computer to shoot images and video while at the same time use it to monitor the live view video signal with now the specific change that lets you remove the overlay display items from the camera to get a clean feed to your video conferencing software.
However, it is not that easy to get it to work and requires a couple of free pieces of software to let you extract the live view feed from the camera and redirect it to a video conferencing application of your choice. We were able to get it to work well and it really makes a difference compared to the small sensor webcams you have been using. Place a 1.4 lens in the camera and look at the beautiful feed that will result by using a professional camera and optics system to make you look better.
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