Fujinon CF35ZA-1S 1.1" 35mm f/1.8 C-Mount Lens 2.5µm Pixel Pitch

1.1" 35mm f/1.8 C-Mount Surveillance Lens

This lens is built for 1.1-inch format sensors with a 2.5 micrometre pixel pitch, supporting resolutions up to 23 megapixels. It suits machine-vision and high-resolution security installations that demand consistent edge-to-edge sharpness. The C-mount interface allows direct attachment to compatible industrial cameras. Manual iris and focus rings give operators full control over exposure and depth of field.

Capacity and low-light headroom

At f/1.8 the aperture gathers ample light for dim environments, while the design maintains over 90 percent relative illumination across the frame. Uniform brightness holds even at the periphery, reducing noise in corner regions without software correction. Performance remains stable when stopped down to f/4, a common setting for inspection tasks requiring deeper depth of field. The optical formula balances chief ray angle and illumination to preserve quality from centre to edge.

2.5 µm pixel-pitch matching

The lens is optimised specifically for sensors with a 2.5 micrometre pixel pitch, ensuring that resolving power matches the sensor's sampling limit. This alignment prevents wasted resolution or aliasing artefacts in high-detail capture. Buyers using sensors with larger pixels or smaller formats will not gain the full optical benefit. The 35mm focal length on a 1.1-inch sensor delivers a narrow field of view suited to targeted monitoring rather than wide-area coverage.