Discontinued — No Longer Available New
This model has been discontinued by Hanwha. Shop current Hanwha products → or see the recommended alternatives below.
Hanwha SLA-F-M1550DNL 3MP Varifocal Lens
The Hanwha SLA-F-M1550DNL is a precision-engineered 1/2.7" varifocal lens designed to deliver exceptional image quality across 3MP surveillance applications. With a 15-50mm focal length and 3.3x optical zoom capability, this lens provides flexible deployment options for diverse monitoring scenarios. Built with advanced optical glass and high-accuracy aspheric elements, it maximizes resolution and minimizes optical aberrations for professional security installations.
Key Features
- 15-50mm varifocal focal length with 3.3x optical zoom
- F1.5 maximum aperture for superior low-light performance
- 3MP resolution compatibility (1/2.7" sensor format)
- Day/Night capability with integrated T360 ND filter for high-sensitivity cameras
- Auto iris (DC type) for automatic exposure control
- Aspherical lens design with low-dispersion and high refractive-index glass
- RoHS compliant construction
Technical Highlights
This varifocal lens utilizes advanced optical engineering to support both color and monochrome (Black & White) imaging modes. The high-accuracy aspheric lens elements reduce spherical aberration and deliver sharp focus across the entire image field. The integrated ND filter with T360 specification ensures proper exposure for high-sensitivity camera sensors, particularly in bright daylight conditions or mixed lighting environments.
The DC-type auto iris mechanism provides automatic diaphragm adjustment, maintaining optimal image brightness regardless of ambient light variations. The F1.5 maximum aperture enables excellent light transmission, making this lens suitable for challenging low-light surveillance applications.
Applications
- Perimeter and facility monitoring where zoom flexibility is required
- Mixed lighting environments requiring day/night capability
- High-sensitivity camera systems benefiting from integrated ND filtration
- Enterprise surveillance installations demanding professional optical performance
- Retail, banking, and critical infrastructure security deployments
