Skip to main content

DSL491A-655-F2.8 Miniature Wide-Angle Lens for 1/2″ Sensors

High-performance wide-angle lens with F/2.8 aperture, 655nm IR cut filter, and 14MP resolution for security and surveillance applications.

M12/M10/M8/M6 Mount Lens
DSL491A-655-F2.8 Miniature Wide-Angle Lens for 1/2″ Sensors

2.8 · '-7.7% from F-θ · M12x0.5

Aperture
2.8
Distortion
'-7.7% from F-θ
Filter Thread
M12x0.5
Focal Length
3.17 mm

Request a quote or product information. Our team can help you select the right configuration.

Product no. 19327
Expert Technical Support
Integration Guidance
Project Lifecycle Support

Product Overview

Wide-angle miniature lens offering high-resolution imaging with a 655nm IR cut filter for superior color fidelity on 1/2″ sensors.

The Sunex DSL491A-655-F2.8 is a high-resolution miniature wide-angle lens designed for use with 1/2" image sensors. With an effective focal length (EFL) of 3.17mm, an aperture of F/2.8, and a field of view exceeding 100°, this lens is well-suited for applications requiring a wide perspective, such as security and surveillance systems. It supports image sensors up to 14 megapixels, ensuring sharp, high-quality images across the field of view. The lens features an M12x0.5 metal barrel for durability and an IR cut-off filter at 655nm, blocking infrared light to maintain accurate color reproduction.


Product Specifications

ApertureAperture
2.8
Back Focal Length [mm]Back Focal Length [mm]
Distortion [%]Distortion [%]
'-7.7% from F-θ
Filter ThreadFilter Thread
M12x0.5
Focal Length [mm]Focal Length [mm]
3.17
Focus Type
Fixed focal
Field of View Diagonal [°]Field of View Diagonal [°]
Field of View Horizontal [°]Field of View Horizontal [°]
150
Field of View Vertical [°]Field of View Vertical [°]
Image Circle [mm]Image Circle [mm]
7.8
Filter TypeFilter Type
IR cut-off at 655nm
Lens FeaturesLens Features
Wide Angle
ManufacturerManufacturer
Sunex
Material BarrelMaterial Barrel
Metal
Material LensesMaterial Lenses
Max. Chief Ray Angle [°]Max. Chief Ray Angle [°]
13
MountMount
M12
Product TypeProduct Type
Miniature Lens
Resolution [MP]Resolution [MP]
14
Sensor SizeSensor Size
1/2 inch
Target ApplicationTarget Application
Target SensorTarget Sensor
Total Track Length [mm]Total Track Length [mm]
24

Latest Blog Posts

Our latest blogs

Welcome to our blog section, where knowledge meets inspiration. Explore insightful articles, expert tips, and the latest trends in our field.

View All
Inside-Out, Outside-In: Two Ways Vision AI Enters the Factory

Inside-Out, Outside-In: Two Ways Vision AI Enters the Factory

Physical AI is moving from research labs onto the factory floor along two distinct paths. One begins with digital twins, simulation, and synthetic data before a robot reaches real hardware....

Read more
Bridging Sensor and SoC: Co-Optimization Strategies for Next-Generation Vision

Bridging Sensor and SoC: Co-Optimization Strategies for Next-Generation Vision

As imaging moves toward smarter, faster, and more efficient systems, modern vision applications demand more than incremental improvement. They require deeper synergy and better co-optimization between sensors and SoCs. Design...

Read more
Unlocking New Capabilities: How Sony’s Image Sensors Are Advancing Industrial Vision

Unlocking New Capabilities: How Sony’s Image Sensors Are Advancing Industrial Vision

Industrial vision is evolving to support faster, more accurate, and more adaptable inspection. Advances in image sensors – from high-resolution and HDR imaging to short-wave infrared – are enabling better...

Read more
Embedded Vision Beyond Autonomous robots

Embedded Vision Beyond Autonomous robots

Embedded vision is widely recognized in modern mobility applications such as autonomous driving, advanced driver-assistance systems (ADAS), AMRs, AGVs, drones, and humanoid robots. Besides these relatively new application areas, there...

Read more
From Prototype to Production: Building AI at the Edge

From Prototype to Production: Building AI at the Edge

An AI model that works on a development board is still a long way from a production-ready edge device. The final system must capture useful data, process it within a...

Read more
Industrial 3D Cameras: Rugged 3D Vision Camera for Automation – FRAMOS D435e with GigE & IP66 

Industrial 3D Cameras: Rugged 3D Vision Camera for Automation – FRAMOS D435e with GigE & IP66 

3D cameras for industrial applications have to operate in harsh production environments and reliably detect moving objects at speed, e.g. when the camera is mounted on a robot arm. Stable...

Read more
Depth Sensing Cameras: How Machines Understand the Physical World

Depth Sensing Cameras: How Machines Understand the Physical World

The past two decades of innovations in embedded systems, robotics, industrial automation and autonomous vehicles all have one thing in common.

Read more
When Robot Safety Becomes a Perception Problem

When Robot Safety Becomes a Perception Problem

For decades, robot safety was based on separation. Cages, light curtains, guarded workcells, and emergency stops kept machines and people apart. Physical AI changes that model. Robots increasingly share space...

Read more

Request a Quote for:

DSL491A-655-F2.8 Miniature Wide-Angle Lens for 1/2" Sensors
  • Submit Your Details

    Complete the quote request form with your project requirements and contact information.

  • Discuss Your Needs

    Our specialists will reach out for a brief consultation to ensure we tailor the perfect imaging solution for your application.

  • Receive Your Custom Quote

    We’ll provide a detailed quotation and guide you through the next steps, including evaluation kits, pricing, and timelines.