Webcams can be broken down into tiers: Luxury HD Webcams like the Logitech C930e or Conference Cam Connect for those who want the best.
Popular Mid-Range models for the best of both worlds.
Autofocus cams can be a double-edged sword: The can adapt to normal range or show close-ups without manual adjustment.
These high quality webcams are designed for group conference sessions and offer a slightly wider FOV - Field Of View.
Look for smart, thoughtful design in the camera itself: A webcam clip and mounting design that's versatile and adjustable when perched atop or clipped to a laptop or notebook screen, that can sit on your desktop or monitor, or those that have a standard camera mount hole for attaching to a tripod.
For MOST people a simple, hassle-free, futz-free fixed lens cam may be your best straight-forward choice.
The same problem occurs with some webcams that may have a still-picture snapshot function or button to trigger movie recording.
Simply touching the camera to enable it knocks it out of alignment - and focus.