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Day/Night is a popular term for lenses and other products which are optimized for operation in both daylight and low-light conditions using an infrared illumination source. Such products require specialized design and manufacturing techniques to provide good image quality under this broad range of spectral conditions. Using a Day/Night lens under these circumstances can improve focus, brightness and resolution over conventional lenses. Sunex also offers specialized Day/Night filter products which can further optimize your application.

Day/Night Filters

These are special IR cut-off filters (IRC40 type) designed to allow both visible light and narrow band of NIR band to pass through. Please refer to Day/Night filter page for details.

Day-Night IR Exchanger

The M12-EXM-IRC21 is an IR cut-off filter exchanger with integrated lens mount that allows true day/night (TDN) operation with the Pixim DPS chipsets. For daytime operation an absorptive color filter provides true color rendition. At night, an AR coated window allows maximum light transmission.  Download spec sheet.

Day/Night Lenses

The following lenses are designed to cover an extended spectral range of visible to near-infrared wavelength (NIR). The designs are achromatized over the entire visible and NIR wavelength so the focal shift between the visible spectrum and NIR is minimized.

PN Description Focal length(mm) f/# Imager Format Field of view/
Depth of field
Recommended Holder Sample Price (1-99) Volume Price
DSL322A-NIR-F2.0 Wide-angle, multi-megapixel, hybrid lens for day/night applications, 1/4" sensor, NO IR cut-off, EFL = 2.4mm, F/2.0, M12x0.5, metal barrel 2.4 2 1/4" Calculate FOV
Calculate DOF
CMT821, CMT804 $49
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DSL322A-650-F2.0 Wide-angle, multi-megapixel, hybrid lens for day/night applications, 1/4" sensor, with IRC30 IR cut-off coating, EFL = 2.4mm, F/2.0, M12x0.5, metal barrel 2.4 2 1/4" Calculate FOV
Calculate DOF
CMT821, CMT804 $49
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DSL958G-NIR-F1.7 Wide-angle, low distortion lens for forward machine vision, NO IR cut, EFL=4.6, F/1.7, aluminum barrel, threaded M12X0.5 4.6 1.7 1/3" Calculate FOV
Calculate DOF
CMT821, CMT107, CMT804 $49
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DSL958G-700-F1.7 Wide-angle, low distortion lens for forward machine vision, IR cut-off at 700nm, EFL=4.6, F/1.7, aluminum barrel, threaded M12X0.5 4.6 1.7 1/3" Calculate FOV
Calculate DOF
CMT821, CMT107, CMT804 $49
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DSL988B-650-F1.6 NoGhost lens for 1MP HDR sensors, IR cut-off at 650nm, EFL=5.4, F/1.6, metal barrel threaded M10x0.5 5.4 1.6 1/3" Calculate FOV
Calculate DOF
CMT934 $49
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DSL978B-650-F1.6 NoGhost lens for 1MP HDR sensors, IR cut-off at 650nm, EFL=5.9, F/1.6, metal barrel threaded M12x0.5 5.94 1.6 1/3" Calculate FOV
Calculate DOF
CMT821, CMT822, CMT107 $49
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DSL947S-650-F1.6 Low stray light lens for 1MP HDR sensors, IR cut-off at 650nm, EFL=6.1, F/1.6, metal barrel threaded M12x0.5, front side sealed IP6K9K 6.1 1.6 1/3" Calculate FOV
Calculate DOF
CMT107, CMT821 CMT804 $49
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DSL947B-NIR-F1.6 Low stray light lens for 1MP HDR sensors, NO IR cut-off, EFL=6.1, F/1.6, metal barrel threaded M12x0.5 6.1 1.6 1/3" Calculate FOV
Calculate DOF
CMT107, CMT821 CMT804 $49
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DSL947B-700-F1.6 Low stray light lens for 1MP HDR sensors, IR cut-off at 700nm, EFL=6.1, F/1.6, metal barrel threaded M12x0.5 6.1 1.6 1/3" Calculate FOV
Calculate DOF
CMT107, CMT821 CMT804 $49
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DSL977A-650-F1.8 NoGhost lens for 1MP HDR sensors, IR cut-off at 650nm, EFL=7.7, F/1.8, metal barrel threaded M12x0.5 7.7 1.8 1/2.7" Calculate FOV
Calculate DOF
CMT821 CMT804 $49
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DSL936D-650-F3.2 Miniature multi-megapixel, Day/Night lens, with IR cut coating, for 1/2" sensor, EFL=8.5mm, F/3.2, M12x0.5, metal barrel 8.5 3.2 1/2" Calculate FOV
Calculate DOF
CMT821 $49
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DSL936C-NIR-F3.2 Miniature multi-megapixel, Day/Night lens, no IR cut, for 1/2" sensor, EFL=8.5mm, F/3.2, M12x0.5, metal barrel 8.5 3.2 1/2" Calculate FOV
Calculate DOF
CMT821 $49
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DSL208A-NIR-F4.0 Compact telephoto lens for day/night applications up to 1/3" sensor, NO IR cut-coating, EFL15.8mm, F/4.0, M12x0.5, metal barrel 15.8 4 1/3" Calculate FOV
Calculate DOF
CMT107, CMT103 CMT804 $49
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DSL208A-NIR-F2.0 Compact telephoto lens for day/night applications up to 1/3" sensor, NO IR cut-coating, EFL15.8mm, F/2.0, M12x0.5, metal barrel 15.8 2 1/3" Calculate FOV
Calculate DOF
CMT107, CMT103 CMT804 $49
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DSL208A-650-F2.0 Compact telephoto lens with IR cut coating, for day/night applications up to 1/3" sensor, EFL15.8mm, F/2.0, M12x0.5, metal barrel 15.8 2 1/3" Calculate FOV
Calculate DOF
CMT107, CMT103 CMT804 $49
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