4-18 mm, 1/1.8", 3 MP, C-mount Varifocal CCTV lens
LS-CTV-0086
- Focal length 4-18 mm
- Mount C-mount
- Sensor 1/1.8"
$129.00
Ships in 2-3 weeks
Lenses
Varifocal lenses for industrial cameras
Set the field of view on siteVarifocal lenses with an adjustable focal length, mostly in C-mount and CS-mount. Compare the focal length range, sensor format, megapixel rating and iris type.
Products
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 LS-CTV-00864-18 mm, 1/1.8", 3 MP, C-mount Varifocal CCTV lens
| 4-18 mm | C-mount | 1/1.8" | F1.6 DC Iris | 3.0 Megapixel | $129.00 | Ships in 2-3 weeks |
Set the field of view on site
A varifocal lens lets the installer set the focal length within its range, which removes the need to know the exact field of view before the camera is mounted. Unlike a parfocal zoom, it has to be refocused after the focal length is changed, so it is adjusted once and then locked.
- Check the mount: C-mount and CS-mount share a thread but not a flange distance, and a CS-mount lens does not focus on a C-mount camera.
- Compare the format and megapixel rating with the sensor, and the focal length range with the widest and narrowest field you need.
- Choose the iris for the lighting: manual for constant light, DC auto-iris where the scene brightness changes and the camera can drive it.