Logitech Carl Zeiss Tessar 2.0 3.7 Driver -

The Carl Zeiss Tessar 2.0/3.7 includes a built-in mic. In Windows Sound Settings, set "Logitech Mic (Imaging Device)" as default input device. If missing, reinstall the driver with the mic option enabled.

The only bottleneck is the driver.

The original driver (version 13.80.854.0 for Windows 7/8) unlocked features lost in later “universal” drivers: logitech carl zeiss tessar 2.0 3.7 driver

Modern Logitech drivers (for C920, Brio) disable many of these. The Tessar 2.0/3.7 driver stack represented a transparent imaging pipeline – minimal noise reduction, no forced sharpening, no auto-white-balance lock-in. The Carl Zeiss Tessar 2