16mm 4/3-Inch 10MP Large-Format C-Mount Lens | POMEAS

16mm 10MP Large-Format C-Mount Lens for 4/3-Inch Cameras

The POMEAS PMS-LFHHH-1620M is a 16mm fixed focal FA lens designed for C-mount machine vision cameras with sensors up to 4/3 inch. It is rated for 10MP imaging and provides a Ø22 mm image circle, an adjustable F2.0-F22 manual iris, and separate locking mechanisms for focus and aperture adjustment.

Compared with the 12mm model in the same large-format series, the 16mm focal length provides a narrower field of view and places more camera pixels across a smaller inspection region. It is suitable for systems that still require broad scene coverage but do not need the extremely wide view of a 12mm lens.

Typical applications include large-component inspection, packaging verification, assembly checking, robot guidance, part localization, and general surface inspection. Final selection should be based on the camera sensor dimensions, pixel size, working distance, required field of view, and smallest feature that must be detected.

Key Features

Supports Sensors up to 4/3 Inch

The PMS-LFHHH-1620M supports sensors up to the specified 4/3-inch format and provides a Ø22 mm image circle.

This makes it suitable for large-format machine vision cameras that require more image coverage than conventional 1-inch or 2/3-inch lenses can provide.

The lens may also be used with smaller compatible sensors. A smaller sensor captures a reduced central portion of the image circle and therefore produces a narrower field of view at the same working distance.

16mm Focal Length for Balanced Large-Format Coverage

The 16mm focal length offers a balance between wide-area coverage and object detail.

Compared with a 12mm lens used on the same camera and at the same working distance, the 16mm model:

• Captures a narrower inspection area

• Places more camera pixels across the target

• Reduces unnecessary background

• Produces a less extreme wide-angle view

• Allows more detailed inspection of individual features

Compared with a longer focal-length lens, it still provides relatively broad coverage for large objects, trays, assemblies, and production areas.

10MP Resolution Rating

The lens is rated for 10MP machine vision imaging.

The megapixel rating should be evaluated together with the camera sensor size and pixel pitch. Two 10MP cameras may use different sensor dimensions and pixel sizes, creating different requirements for lens resolution.

Before confirming selection, review:

• Active sensor dimensions

• Pixel size

• Required field of view

• Smallest feature to detect

• Required inspection accuracy

Ø22 mm Image Circle

The specified Ø22 mm image circle supports the stated 4/3-inch maximum sensor format.

Image-circle coverage is important when matching a lens to a large-format camera. Insufficient coverage may result in dark corners, incomplete sensor utilization, or reduced image quality near the edges.

The actual active sensor diagonal of the selected camera should still be confirmed before ordering.

0.1 m to Infinity Focusing Range

The published focusing range begins at 0.1 m and extends to infinity.

This allows the lens to be considered for compact inspection stations as well as systems with longer camera installation distances.

The focusing range should not automatically be interpreted as a working distance measured from the front surface of the lens. The exact mechanical reference point should be confirmed when installation space is tightly controlled.

F2.0-F22 Manual Iris

The adjustable F2.0-F22 iris allows the system integrator to balance image brightness, exposure time, and depth of field.

Opening the iris allows more light to reach the camera sensor and may support shorter exposure times. Closing the iris can increase depth of field when the inspected object has height variation, although stronger illumination may then be required.

The final aperture should be selected together with:

• Camera exposure time

• Object speed

• Illumination intensity

• Required depth of field

• Acceptable image sharpness

Lockable Focus and Iris Adjustments

The focus and iris controls include locking mechanisms.

After the imaging conditions have been adjusted, both settings can be secured to help reduce accidental movement during machine installation, maintenance, camera handling, or routine operation.

This is useful for fixed production equipment that requires stable and repeatable image settings.

Published Sensor-Specific Field Angles

The product sheet provides complete diagonal, horizontal, and vertical angle-of-view data for three sensor formats.

For a 4/3-inch sensor:

• Diagonal: 73.0°

• Horizontal: 61.0°

• Vertical: 47.2°

For a 1-inch sensor:

• Diagonal: 54.0°

• Horizontal: 44.2°

• Vertical: 33.6°

For a 2/3-inch sensor:

• Diagonal: 38.2°

• Horizontal: 31.0°

• Vertical: 23.4°

These values show how sensor size changes the captured scene even when the lens and working distance remain unchanged.

Published Distortion Data

The product sheet specifies:

• 4/3-inch sensor: -2.81% at y = 11.0 mm

• 1-inch sensor: -1.92% at y = 8.0 mm

• 2/3-inch sensor: -1.06% at y = 5.5 mm

The negative values indicate barrel-type geometric distortion at the stated image heights.

For presence inspection, packaging verification, general recognition, and robot guidance, this may be acceptable depending on the application. For coordinate positioning or dimensional measurement, distortion correction and system calibration should be considered.

Published lens distortion is not equivalent to guaranteed system measurement accuracy.

Technical Specifications

Model: PMS-LFHHH-1620M
Lens Type: Fixed focal machine vision FA lens
Resolution Rating: 10MP
Focal Length: 16 mm
Maximum Sensor Format: 4/3 inch
Image Circle: Ø22 mm
Aperture Range: F2.0-F22
Focusing Range: 0.1 m to infinity
Camera Mount: C-Mount
Filter Thread: M58 × 0.75 mm
Back Focal Length in Air: 21 mm
Focus Adjustment: Manual, with locking mechanism
Iris Adjustment: Manual, with locking mechanism
Operating Temperature: -10°C to +50°C

Angle of View

4/3-Inch Sensor

Diagonal: 73.0°
Horizontal: 61.0°
Vertical: 47.2°

1-Inch Sensor

Diagonal: 54.0°
Horizontal: 44.2°
Vertical: 33.6°

2/3-Inch Sensor

Diagonal: 38.2°
Horizontal: 31.0°
Vertical: 23.4°

A smaller sensor uses a smaller central portion of the image circle and therefore captures a narrower field of view.

Distortion

4/3-inch sensor: -2.81% at y = 11.0 mm
1-inch sensor: -1.92% at y = 8.0 mm
2/3-inch sensor: -1.06% at y = 5.5 mm

Applications involving coordinate measurement, geometry inspection, or accurate edge positioning should include camera calibration and distortion correction where required.

Camera and Sensor Compatibility

The PMS-LFHHH-1620M is designed for C-mount cameras with sensors up to 4/3 inch.

It can also be used with compatible 1-inch and 2/3-inch cameras. At the same working distance, the smaller sensor captures a narrower scene because it records a smaller area of the lens image circle.

Before confirming compatibility, check:

• Camera model

• Active sensor width and height

• Sensor diagonal

• Camera resolution

• Pixel size

• C-mount interface

• Flange and adapter configuration

• Camera housing dimensions

• Available installation space

• Filter requirements

• Illumination wavelength

The Ø60.2 mm front structure and M58 filter thread require more installation space than a compact 2/3-inch FA lens. Mechanical interference with lighting, brackets, covers, or adjacent equipment should be checked before installation.

The 10MP rating does not guarantee compatibility with every 10MP camera. Sensor dimensions, pixel size, and required inspection detail must also be considered.

Field of View and Working Distance Guidance

The actual field of view depends on:

• Lens focal length

• Active sensor dimensions

• Working distance

• Sensor aspect ratio

• Focusing position

For the same lens:

• A 4/3-inch sensor captures a wider scene than a 1-inch or 2/3-inch sensor.

• Increasing the working distance increases the visible object area.

• Reducing the working distance decreases the visible object area.

• A 16mm lens captures a narrower scene than a 12mm lens.

• A narrower field of view places more camera pixels across the target.

The supplied product sheet does not provide verified linear field-of-view dimensions at specific working distances.

To confirm the actual inspection area, provide POMEAS with:

• Camera model

• Active sensor size

• Camera resolution

• Pixel size

• Available working distance

• Required horizontal field of view

• Required vertical field of view

• Smallest inspection feature

• Required accuracy

POMEAS can then evaluate the expected field of view and object-side pixel resolution.

Recommended Applications

Large Component and Assembly Inspection

The 16mm focal length can capture large components or assemblies while providing more pixel concentration than the 12mm model.

It can be used to inspect fasteners, connectors, installed parts, assembly completeness, and general component position.

Application boundary: When the complete assembly cannot fit into the image, a shorter focal length or longer working distance may be required.

Packaging and Label Verification

The lens can support inspection of cartons, trays, containers, caps, seals, labels, and printed areas.

Compared with the 12mm model, the 16mm focal length can place more pixels across individual labels or packaging features while retaining broad scene coverage.

Application boundary: Fine barcodes and small characters must be checked against the camera pixel size and total field of view.

Robot Guidance and Part Localization

The lens may be used for part-presence detection, orientation recognition, pickup-area monitoring, and general position guidance.

Application boundary: Object height variation can change apparent size and position with a conventional FA lens. Calibration, 3D imaging, or telecentric optics may be required for height-sensitive positioning.

Wide Conveyor and Production Inspection

The large sensor coverage can support inspection of multiple products or a moderately wide conveyor section.

Application boundary: Conveyor speed, exposure time, motion blur, illumination intensity, and product spacing must be evaluated separately.

Surface Inspection of Large Parts

With suitable illumination, the lens may support inspection of scratches, contamination, missing material, print defects, or visible surface anomalies across a relatively large area.

Application boundary: Small or low-contrast defects may require a narrower field of view, more camera resolution, or specialized lighting.

Selection Notes

Choose This 16mm 4/3-Inch Model When

• A 4/3-inch or smaller C-mount sensor is being used

• A Ø22 mm image circle is required

• A moderately wide inspection area must fit into one image

• A 12mm lens captures more background than necessary

• More camera pixels are required on the inspected object

• The available focusing condition is 0.1 m or greater

• A 10MP lens rating matches the camera requirement

• Manual focus and iris locking are required

Choose the 12mm Model When

• A wider object or conveyor area must fit into one image

• Camera installation distance is more limited

• Several objects or inspection regions must be captured simultaneously

• Pixel concentration on individual small features is less important

• The 16mm lens produces a field of view that is too narrow

Choose a Longer Focal Length When

• The required inspection region is smaller

• More camera pixels are needed on a small feature

• The camera can be installed farther from the object

• Unnecessary background must be further reduced

• The target occupies only a small portion of the 16mm image

When a Standard FA Lens Is Usually Sufficient

A conventional FA lens may be suitable for:

• Presence and absence inspection

• Packaging verification

• Label and code reading

• Assembly checking

• General surface inspection

• Robot guidance

• Part localization

• Calibrated edge detection

When to Consider a Telecentric Lens

A telecentric lens should be considered when:

• Dimensional measurement accuracy is the primary objective

• Object height changes during inspection

• Magnification must remain stable at different depths

• Perspective error cannot be accepted

• Edge position must remain consistent

• The published distortion is too high for the required tolerance

When This Lens May Not Be Suitable

The PMS-LFHHH-1620M may not be suitable when:

• The camera sensor is larger than the stated 4/3-inch format

• The camera does not use a compatible C-mount interface

• The required field of view is wider than the 16mm lens provides

• Very small defects must be detected across a very large object area

• Strict dimensional measurement is required without calibration

• Object-height variation creates unacceptable perspective changes

• Installation space cannot accommodate the Ø60.2 mm front structure

• A motorized focus or motorized iris is required

• Spectral transmission must be guaranteed for a specific wavelength

FAQ

Can the PMS-LFHHH-1620M be used with a 4/3-inch camera?

Yes. The lens is specified for sensors up to 4/3 inch and provides a Ø22 mm image circle. The camera must also use a compatible C-mount interface.

Can it be used with a 1-inch or 2/3-inch sensor?

Yes. The product sheet provides angle-of-view and distortion data for both formats. Smaller sensors capture a narrower field of view at the same working distance.

What field of view will the 16mm lens provide?

The exact linear field of view depends on the camera sensor dimensions and working distance. The supplied sheet provides angular field-of-view values but does not provide object coverage in millimeters at specific distances.

How does this 16mm model differ from the 12mm large-format model?

At the same sensor size and working distance, the 16mm lens provides a narrower field of view and places more camera pixels across a smaller inspection area. The 12mm model is more suitable when wider coverage is required.

Is this lens suitable for dimensional measurement?

It may be used in a calibrated system after the complete camera and lens setup has been tested against the required tolerance. The published distortion is -2.81% on a 4/3-inch sensor, so distortion correction may be required. For strict metrology, a telecentric lens may be more appropriate.

Does the 10MP rating guarantee compatibility with every 10MP camera?

No. Camera sensor dimensions and pixel size vary between models. The active sensor size, pixel pitch, field of view, and smallest inspection feature must be reviewed together.

How can I confirm whether this lens matches my application?

Provide the camera model, active sensor dimensions, resolution, pixel size, working distance, required field of view, inspection object, and smallest required feature to POMEAS.

Request Lens Selection Support

Please provide POMEAS with:

Camera model
Sensor size
Camera resolution
Pixel size
Available working distance
Required field of view
Inspection object
Smallest feature to detect
Accuracy requirement
Object height variation
Illumination method
Available installation space

POMEAS will review sensor coverage, image-circle compatibility, expected field of view, object-side pixel resolution, distortion requirements, and mechanical clearance before recommending the final lens configuration.