Logitech Carl Zeiss Tessar 2.0 3.7 Driver Jun 2026

However, you are likely referring to a specific, legendary piece of hardware history: , which featured a Carl Zeiss Tessar 2.0/3.7 lens. The “3.7” refers to the focal length (3.7mm), and “2.0” is the maximum aperture.

The "3.7" marking refers to the focal length of the lens in millimeters. In the context of small sensor sizes found in webcams (often 1/4-inch to 1/2.8-inch sensors), a 3.7mm focal length provides a wide field of view. logitech carl zeiss tessar 2.0 3.7 driver

The only bottleneck is the .