The Theia SL183M wide-angle lens with 1.8mm - 3mm is suitable for cameras up to a resolution of 5MP (Megapixel) and provides a distortion-free image with a viewing angle of 77 ° - 105 ° (depending on the sensor size).
In addition, it is IR corrected and can be used day and night without the focus point changing.
Likewise, it does not require sharpness adjustment for objects that are near or farther away from the lens. Ideal for use with 1/3 ", 1 / 2.7", 1 / 2.5 "or 1 / 2.3" cameras.
Similar to the other Theia lenses, the SL183 and ML183 are high quality lenses that allow the installer to take full advantage of the high resolution of HD and multi-megapixel cameras.
The lens can be used with cameras with a resolution of up to five megapixels, resulting in a sharp image from edge to edge.
In addition, the SL183 / ML183 series includes EasyZoom ™, which allows the installer to focus on the lens once and then adjust the zoom or magnification to obtain the optimized field of view. After zooming, only a slight focus optimization is required. There is no need for the device's iterative focus-zoom-focus method, which is required for other varifocal lenses.
The lens is IR-corrected for use with real day / night cameras. This IR correction focuses IR light from artificial lighting to the same level as the visible light, keeping the image in focus as the day / night camera switches to night mode. In contrast to lenses without IR correction, the night image is not blurred when using IR illumination.
Objektiv Typ: variable Brennweite
Tag/Nachteinsatz: ja, IR korrigiert
Auflösung: Bis 5 Megapixel
Gewinde: CS Anschluss
Nennformat 1/2,5"
Brennweite: 1,8mm - 3mm
Blendensteuerung: Manuell
Horizontaler Blickwinkel: 105° - 77° bei 1/3", 116° - 89° bei 1/2,7", 115° - 88° bei 1/2,5"
Kleinster Objektabstand: 0,1 m
Temperaturbereich: -10°C ~ +50°C