The MY125M-E 1.3mm f/1.8 IR-Transmitting C-Mount Lens from Theia Technologies features an ultra-wide 135° field of view and less than 3% barrel distortion. It's designed for C-mount cameras with image resolutions up to 5MP. The MY125M-E model has focus and iris locks secured by thumbscrews and set screws.
Built-in IR-transmitting optics allow this lens to be paired with IR illuminators with a transmittance up to 950nm. The lens uses Theia's Linear Optical Technology that corrects barrel distortion optically.