4K Desktop Camera PDAF Autofocus 12MP Sensor F1.7 USB Webcam 874L

This 4K desktop camera is fundamentally built around an advanced 1/2.5 inch optical image sensor, providing exceptional light sensitivity for professional digital environments. The internal hardware supports an ultra-high maximum effective pixel resolution of 4000(H) multiplied by 3000(V). The device consistently delivers a 4K video resolution at a stable 30 frames per second, alongside an alternative 1080P output option operating at 60 frames per second. The image sensor utilizes a precisely calibrated pixel size measuring 1.4 micrometers by 1.4 micrometers. Raw visual data is efficiently encoded and transmitted using industry-standard YUY2 and MJPEG formats. The optical system maintains a tested dynamic range of 70db.

The optical mechanism of this USB webcam features a specialized 6-element (6P) glass lens composition. This lens array incorporates a large F1.7 aperture, maximizing light transmission to the sensor and significantly improving image quality in dimly lit home offices. The angular field of view is factory-calibrated to 77 degrees, providing a balanced framing area with a strict tolerance of ±1 degree. For focusing, the camera utilizes Phase Detection Auto Focus (PDAF) technology. This advanced PDAF mechanism allows the PC camera to calculate spatial depth instantly and lock focus on subjects with zero mechanical hunting.

Beyond standard optical performance, this 12MP sensor web camera integrates innovative touch control features on the chassis. The left side features a touch sensor for loop-based brightness adjustment. The right side incorporates a separate touch button dedicated to a hardware zoom function, enabling progressive image magnification. Both touch sensors trigger a blue LED light upon successful activation. Audio recording is managed by built-in 2 channel stereo noise-canceling microphones. For physical security, the camera includes a premium magnetic privacy cover that attaches securely over the lens.

Connectivity is established through a standard USB 2.0 interface, ensuring broad compatibility with various computing hardware. The streaming PC camera operates on a DC 5V power supply and requires a highly efficient maximum working current of just 190mA. A central indicator light illuminates to confirm when the camera is actively transmitting an image.

The physical structure of the 874L webcam is designed for monitor stability, measuring 74.9 millimeters in total width and 46 millimeters in main body height. The device supports universal plug-and-play functionality across Windows 7, Windows 8, Windows 10, Windows 11, macOS, Linux, Android, and Ubuntu systems. The internal electronics are rated to operate safely within an ambient temperature range of 0 to 60 degrees Celsius. Recommended storage temperatures are specified from -30 to 85 degrees Celsius.