Reikan announces major update to FoCal AF tuning software: Digital Photography Review
Amazon.com: NexiGo StreamCam N930E with Software, 1080P Webcam with Ring Light and Privacy Cover, Auto-Focus, Plug and Play, Web Camera for Online Learning, Zoom Meeting Skype Teams, PC Mac Laptop Desktop :
Reikan FoCal FoCal Large Hard Target (210mm) 98011 B&H Photo
Review: Reikan FoCal autofocus adjustment and calibration software