This LM25HC C-Mount 25mm Fixed Lens from Kowa is designed for 1" format megapixel cameras with a C-mount. It features low distortion and has a focusing range of just under 1' to infinity. The wide aperture range of 1.4 to f/16 allows you to use the lens in a wide range of lighting conditions.
The high resolving power of the lens, 100 line pairs per millimeter in the center, allows you to use the lens with smaller format sensors. It features an M35.5 front filter thread for adding filters to the lens.