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Fixed Focal Length Lenses

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Fixed Focal Length Lenses for CCTV, Machine Vision and M12 Cameras

Fixed focal length lenses provide one nominal focal length for a defined camera view. Compare suitable models across CCTV, machine vision and M12 camera families using sensor coverage, focal length, mount and aperture requirements. SUPERIOR helps buyers review the intended scene, working distance and mechanical fit before sample evaluation and production approval.

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Explore Fixed Focal Length Lenses

Compare confirmed fixed-focal models across CCTV, machine vision and M12 camera families. Filter by product family, focal length, mount, sensor format and iris requirements.

Filter Lens Models
Product Family
Product Family
Required Focal Length (mm)
Required Focal Length (mm)
Mount
Mount
Sensor Format
Sensor Format
Iris Option
Iris Option
Minimum Image Circle (mm)
Minimum Image Circle (mm)
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Select multiple options within a field to match any; different fields combine. Choices appear only when model data is entered. Unknown values do not satisfy a selected specification. Resolution ratings require confirmation against sensor and pixel conditions. Focal length, wavelength and magnification must fall within the stated model range.

5 matching models

Fixed Focal Length Lens Selection Checklist

Use project-defined inputs to prepare a selection brief. Confirm the selected model specifications and agree on test conditions before approval.

Fixed Focal Length Lens Selection Checklist
ParameterSelection inputVerification required
Scene geometryObject width, height and distanceDetermine the required coverage on the actual sensor.
SensorActive dimensions and pixel pitchCheck image circle and useful detail.
Focal lengthSpecified single nominal focal lengthConfirm coverage and performance at the working distance.
FocusManual, motorized or fixed setting as specifiedDo not infer focus control from focal-length type.
ApertureSpecified f-number and iris arrangementEvaluate exposure and depth-of-field needs.
MountInterface and available installation spaceReview rear clearance and housing fit.
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Key Features and Advantages

  • Application-Based Focal Length

    Select the focal length from scene dimensions, sensor size and working distance. Check the actual field of view rather than relying only on a nominal millimeter value.

  • Sensor & Image Quality Matching

    Compare coverage, pixel pitch and center-to-edge performance for the intended imaging task. Evaluate distortion and illumination under the required conditions.

  • Focus & Iris Options

    Review focus and aperture control separately from focal length. A fixed focal length lens can still have adjustable focus or iris, depending on its design.

  • Repeatable Camera Integration

    Check mechanical interfaces and the agreed focus-setting procedure. Validate samples and retention in the intended camera assembly before volume purchasing.

Manufacturing and Quality Control

CCTV lens evaluation should reflect the camera, scene coverage and visible or infrared operating conditions. Agree on optical performance, mechanical fit and focus-control requirements, and request relevant drawings, sample images and inspection records before approving the production configuration.

  • Optical Performance Checks

    Review scene coverage, center and edge detail, distortion and low-light imaging with the intended camera. For day-night projects, evaluate focus behavior with the specified visible and IR illumination and filter configuration; do not assume every model is IR-corrected.

  • Mechanical & Mount Inspection

    Verify the mount, stated back focal requirements, barrel dimensions and available installation space against the camera and approved drawing. Check rear clearance and any filter, housing or protective-window interference before assembly approval.

  • Assembly & Focus Verification

    Check focus adjustment and retention in the intended camera assembly. For applicable models, evaluate zoom travel and iris operation, including the required control interface. Confirm day-night refocusing behavior and the agreed production focus-setting procedure.

  • Final Inspection & Traceability

    Review appearance, model identification, approved specification revision and protective packaging against agreed requirements. Request applicable inspection records and batch identification; define any additional sampling, functional checks or shipment documentation for the project.

View Manufacturing & Inspection Process

Technical Reference for Camera Evaluation

Camera specifications help define the imaging requirements for fixed focal length lens selection. EMVA 1288 provides a framework for characterizing machine-vision sensors and cameras. Use the camera manufacturer’s published data alongside lens-specific checks for sensor coverage, chief ray angle and image quality.

EMVA 1288 — Sensor and Camera Characterization

Fixed Focal Length Lens Applications

Evaluate representative scenes for security, industrial inspection and embedded camera integration.

Illustrative fixed-focal security camera evaluation with a doorway target

Fixed-View Security Cameras

Use Fixed Focal Length Lenses to define the view of a security camera at its installation position. Match scene coverage and target detail to the sensor, then evaluate focus, lighting and any day-night requirements with the intended housing.

Discuss Security Cameras
Illustrative fixed-focal machine vision camera above machined parts on an inspection fixture

Industrial Camera Stations

Match a fixed focal lens to a repeatable inspection scene, sensor and working distance. Evaluate center and edge detail, distortion and illumination using representative parts before agreeing on inspection and assembly acceptance criteria.

Discuss Machine Vision
Illustrative M12 fixed-focal camera module integrated in an open instrument housing

Embedded Camera Modules

Review compact fixed-focal optics for an M12 or other embedded camera module. Check holder engagement, rear clearance and focus access, then validate useful sensor coverage and image quality in the assembled device.

Discuss Embedded Cameras

Illustrative application scenes.

Related Products & Engineering Support

Compare focal-length options, review selection guidance or discuss a custom camera requirement.

BUYER QUESTIONS

Frequently Asked Questions

Selection and project review questions for Fixed Focal Length Lenses.

Does fixed focal length mean fixed focus?

No. Focal length and focus adjustment are separate specifications. Check whether the model uses adjustable focus, a locked focus setting or another focus arrangement.

Can a fixed focal lens have an adjustable iris?

Yes, depending on the model. Review the iris type and aperture specification separately.

How does this page differ from M12 Lenses?

This page organizes lenses by focal-length behavior across mounts. M12 is a mechanical interface and can include different optical designs.

What information is needed for a project review?

Send the selection inputs listed above, the relevant drawing and representative targets or process conditions. Request a model-specific feasibility review, sample evaluation plan and quotation before production approval.

PROJECT INQUIRY

Request an Optical Project Review

Send your fixed focal length lenses requirements, relevant drawings and evaluation conditions. Request a model-specific feasibility review, sample plan and quotation.

Prepare Your Lens Inquiry

Include a model number or the information currently available:

  • Application and sensor details
  • Field of view, working distance and wavelength
  • Sample quantity or expected annual volume
  • Delivery destination and preferred schedule
Contact SUPERIOR

You do not need a complete optical specification to start. Send the information currently available, along with your delivery destination and preferred schedule.