Here is a good shore explainer on basic webcam options and Epocam: 

From: SciArt-L Discussion List-for Natural Science Illustration- <[log in to unmask]> on behalf of Marjorie Leggitt <[log in to unmask]>
Subject: Re: [SCIART] [EXTERNAL] [SCIART] Equipment for online teaching with Zoom

Hi Karen.
In Zoom, to access the camera and items on your desktop use the ”share“ button on the lower tool bar. This opens 2 levels of sharing capabilities. Desktop items are available through the normal share function and live stream camera is accessed through the advance share function.

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