Here are some videos with tips on mirrorless vs. DSLR cameras presented at the January 4th 2019 meeting.
Camera Basics: DSLR vs. Mirrorless. What are the Differences? By Photo Gear Fun
Crop Factor with ISO and Aperture. How Some Camera Companies Cheat You. By Tony Northrup
Mirrorless vs. DSLR Cameras. What’s the Difference? (2018 Edition) By Jared Polin
DSLR vs. Mirrorless Cameras: Which Should You Choose? By Lane McCall