PDAF Autofocus 12MP USB Camera F1.7 Lens Touch Control Web Cam 874L

This 12MP USB camera utilizes an advanced 1/2.5 inch optical image sensor, specifically engineered for high-resolution desktop video capture. The internal sensor architecture supports a maximum effective pixel array of 4000(H) multiplied by 3000(V). This hardware capability allows the PC web camera to deliver continuous 4K video at a stable 30 frames per second, as well as an optional 1080P video output at 60 frames per second. The image sensor features a physical pixel size measuring precisely 1.4 micrometers by 1.4 micrometers. Visual data is efficiently processed and encoded natively in standard YUY2 and MJPEG formats. The optical system maintains a tested dynamic range of 70db.

The optical mechanism of this desktop webcam is built around a 6-element (6P) glass lens composition. This specialized lens system incorporates a large F1.7 aperture, allowing the camera to maximize light transmission and generate bright images in various indoor environments. The angular field of view is factory-calibrated to a 77-degree angle with a tolerance of ±1 degree. For rapid focusing, the device utilizes Phase Detection Auto Focus (PDAF) technology. This PDAF mechanism allows the computer camera to calculate spatial depth instantly, ensuring subjects remain sharply in focus without mechanical delay.

A prominent technical feature of this 4K web camera is its dual-sided touch interface. The left touch key allows the user to perform loop-based brightness adjustments directly on the hardware. The right touch key enables a sequential hardware zoom function for progressive image magnification. Both touch controls trigger a blue indicator light upon successful activation. For clear voice transmission, the camera relies on integrated 2 channel stereo noise-canceling microphones. A magnetic privacy cover is provided to physically block the lens when the device is offline.

The video camera establishes data connectivity with host computers via a standard USB 2.0 interface. Operating on a standard DC 5V power supply, the streaming webcam requires a maximum working current of only 190mA. A central indicator light illuminates specifically when the video feed is actively transmitting image data.

The structural footprint of the 874L camera chassis measures 74.9 millimeters in total width and 46 millimeters in main body height. The hardware provides universal plug-and-play support across Windows 7, Windows 8, Windows 10, Windows 11, Linux, macOS, Android, and Ubuntu systems. The internal electronics are rated for safe operation within an ambient temperature range of 0 to 60 degrees Celsius. Recommended storage temperatures are defined between -30 and 85 degrees Celsius.