This price includes tariffs, based on the applicable tariff charges. This change is effective as of 04/30/2025, updated 10/25/25. Pricing is subject to change and may fluctuate.Tamron 23FM16LBuilt for factory automation and machine vision applications, T23FM-L lenses feature a screw mechanism to lock-in the focus and iris rings. Ideal for use in an environment experiencing long periods of frequent vibrations. Utilizing a compact body with superior optics, these high resolution lenses are designed to fit today's machinery dimensions and needs only a minimum focusing range of 0.44m to achieve outstanding quality. These fixed focal length lenses provide oustanding optical quality and enhanced performance in close-focus situations.23FM16L Technical Specifications: Product Line / Series 23FM-L Lens Type Fixed Focal Length IP Rating Not Specified Focal Length 16 mm ƒ/N ƒ/1.4 - ƒ/16 Imager Format 2/3″ Light Spectrum Visible Resolution (MP) 1.3 Resolution (Pixel Size) 2.5 μm Weight 48 Mount C-Mount Filter Thread M30.5-0.5 Minimum Object Distance 290 mm Magnification Not Specified Front Diameter 11.5 mm Rear Effective Diameter 11.5 mm Focus Control Manual with Lock Iris Control Manual with Lock Zoom Control None Focus Range 0.29 m - ∞ Operating Temperature Range -10 to +50 °C Dimensions 30.5 × 30.5 × 25 mm TV Distortion (%) Not Specified FOV @ 1/3″ 16.9° × 12.7° FOV @ 1/2″ 22.5° × 16.9° FOV @ 2/3″ 30.9° × 23.4°