

Theia SL183A 1.8–3mm varifocal ultra wide no distortion 5+ MP Day/Night 1/2.3 inch format DC Auto-iris CS mount lens
Ultra Wide, No Distortion Varifocal Lens: SL183/ML183 Ultra wide, no barrel or fisheye distortion Uses patented Linear Optical Technology ® 1.8-3mm focal range, up to 116 degrees HFOV 5+ megapixel resolution Near IR corrected - for multi-spectral and Day/Night Slip ring for convenient orientation & positioning EasyZoom™ requires minimal re-focus post zooming For 1/2.3" sensor sizes or smaller SL183A Overview Selected: SL183A ML183A SL183M ML183M Iris type DC autoiris DC autoiris Manual iris Manual iris Focal length 1.8 - 3.0mm 1.8 - 3.0mm 1.8 - 3.0mm 1.8 - 3.0mm F/# F/1.8 F/1.8 F/1.8 F/1.8 Resolution 5MP 5MP 5MP 5MP IR correction Yes Yes Yes Yes Mount type CS-mount C-mount CS-mount C-mount Similar to Theia's other lenses, the SL183 and ML183 are high quality lenses designed to allow the installer to take full advantage of the high resolution of HD and multi megapixel cameras. The lens can be used on cameras up to five megapixel resolution giving a crisp image from edge to edge. In addition, the SL183/ML183 series includes EasyZoom™ which allows the installer to focus the lens once and then adjust zoom or magnification to give the optimized field of view. Only minor focus optimization is required after zooming. There is no need for the iterative focus-zoom-focus method of setup required for other varifocal lenses. The lens is IR corrected for use with true Day/Night cameras. This IR correction focuses IR light from artificial illumination at the same plane as the visible light allowing the image to remain in focus when the Day/Night camera switches to night mode. Unlike lenses without IR correction, the night image will not be out of focus when using IR illumination. Lenses ML183A 1.8–3mm varifocal, ultra wide, no distortion, 5+ MPX, Day/Night, 1/2.3” format, DC auto iris, C mount ML183M 1.8–3mm varifocal, ultra wide, no distortion, 5+ MPX, Day/Night, 1/2.3” format, Manual iris, C mount Selected: SL183A 1.8–3mm varifocal, ultra wide, no distortion, 5+ MPX, Day/Night, 1/2.3” format, DC Auto-iris, CS mount SL183M 1.8–3mm varifocal, ultra wide, no distortion, 5+ MPX, Day/Night, 1/2.3” format, Manual iris, CS mount




