8mm 2/3-Inch 10MP Wide-Angle C-Mount Lens | POMEAS

8mm 10MP Wide-Angle C-Mount Lens for 2/3-Inch Cameras

The POMEAS PMS-LFEHH-0824M(D) is an 8mm wide-angle C-mount lens designed for machine vision cameras with sensors up to 2/3 inch. It is rated for 10MP imaging and features a manual F2.4-F22 iris, a focusing range from 0.25 m to infinity, and separate locking mechanisms for focus and aperture adjustment.

Its short 8mm focal length provides a relatively wide field of view, making it suitable for inspecting larger objects or wider production areas where camera installation space is limited. The lens can be used for packaging inspection, assembly verification, robot guidance, part-position checks, and general surface inspection.

Actual field of view and detectable feature size depend on the camera sensor dimensions, pixel size, working distance, illumination, and required inspection accuracy.

Key Features

10MP Resolution Rating

The PMS-LFEHH-0824M(D) is rated for use in 10MP machine vision imaging systems.

This rating makes the lens relevant for applications that require more image detail than lower-resolution general-purpose lenses. However, megapixel count alone does not confirm optical compatibility. The camera sensor size, pixel pitch, smallest inspection feature, and required accuracy should also be evaluated.

Supports Sensors up to 2/3 Inch

The lens is specified for a maximum 2/3-inch sensor format with an active image size of 11 mm.

It may also be used with smaller sensors, such as 1/2-inch formats, when the camera has a compatible C-mount interface. A smaller sensor captures a reduced central portion of the lens image and therefore provides a narrower field of view.

8mm Focal Length for Wide-Area Inspection

The short 8mm focal length provides a wider view than longer focal-length lenses used with the same sensor and working distance.

This helps when:

• A larger object must fit into one image
• Several components must be inspected simultaneously
• The camera must be installed close to the inspection area
• A wide conveyor or assembly region must be monitored
• Installation space prevents the use of a longer camera distance

The wider view also distributes the camera pixels across a larger object area. Very small defects may therefore require a narrower field of view, a higher-resolution camera, or a longer focal-length lens.

Published Angle of View for Two Sensor Formats

The product sheet provides complete diagonal, horizontal, and vertical angle-of-view data:

• 2/3-inch sensor: 68.4° × 56.6° × 44°
• 1/2-inch sensor: 58.1° × 47.2° × 36.3°

These values help engineers compare the relative coverage available with different sensor formats. They should not be treated as guaranteed linear field-of-view dimensions in millimeters.

F2.4-F22 Manual Iris

The adjustable F2.4-F22 aperture allows the system integrator to balance image brightness, exposure time, and depth of field.

A wider aperture allows more light to reach the sensor, which may help reduce exposure time. A smaller aperture can increase depth of field when inspected objects have height variation, although the final setting must be tested with the selected camera and illumination.

Lockable Focus and Iris Controls

Both focus and iris adjustments include manual locking mechanisms.

After the image has been focused and the aperture has been set, the controls can be secured to reduce accidental movement during equipment installation, maintenance, camera handling, or normal machine operation.

Compact C-Mount Configuration

The lens uses a standard C-mount interface. The dimension drawing shows a maximum barrel diameter of Ø40 mm and an overall length of 68.48 mm.

Mechanical clearance should still be checked around the camera housing, locking pins, filter thread, mounting brackets, lighting, and nearby machine components.

Technical Specifications

Model: PMS-LFEHH-0824M(D)

Lens Type: Fixed focal machine vision FA lens

Resolution Rating: 10MP

Focal Length: 8.0 mm

Maximum Sensor Format: 2/3 inch

Active Image Size: 11 mm

Aperture Range: F2.4-F22

Focusing Range: 0.25 m to infinity

Filter Thread: M37 × 0.5 mm

Camera Mount: C-Mount

Angle of View on 2/3-Inch Sensor: 68.4° diagonal × 56.6° horizontal × 44° vertical

Angle of View on 1/2-Inch Sensor: 58.1° diagonal × 47.2° horizontal × 36.3° vertical

Focus Adjustment: Manual, with locking mechanism

Iris Adjustment: Manual, with locking mechanism

Operating Temperature: -10°C to +50°C

Maximum Barrel Diameter: Ø40 mm

Overall Length Shown in Drawing: 68.48 mm

Camera and Sensor Compatibility

The PMS-LFEHH-0824M(D) is designed for machine vision cameras with sensors up to the specified 2/3-inch format.

It can also be installed on smaller-format cameras, including compatible 1/2-inch cameras. When used with a smaller sensor, the camera records a smaller central area of the lens image, resulting in a narrower field of view at the same working distance.

Before confirming compatibility, check:

• Camera sensor format
• Active sensor width and height
• Camera resolution
• Pixel size
• C-mount interface
• Flange and adapter configuration
• Camera housing dimensions
• Space around the focus and iris locking pins
• Filter or protective-window requirements
• Required illumination wavelength

The 10MP rating does not mean that the lens is automatically suitable for every 10MP camera. Different cameras can have different sensor sizes and pixel pitches even when their total pixel counts are the same.

Cameras with sensors larger than 2/3 inch should not be selected unless image-circle coverage has been separately confirmed by POMEAS.

Field of View and Working Distance Guidance

The actual field of view is determined by four main factors:

• Lens focal length
• Camera sensor dimensions
• Distance between the lens and object
• Camera aspect ratio and active image area

For the same camera:

• Increasing the working distance increases the visible object area.
• Reducing the working distance decreases the visible object area.
• An 8mm lens provides a wider view than a longer focal-length lens.
• A 2/3-inch sensor captures a wider scene than a 1/2-inch sensor.

The published focusing range is 0.25 m to infinity. This confirms the adjustable focus range stated in the product sheet, but it should not automatically be interpreted as an exact working distance measured from the front surface of the lens.

The published angles of view are:

2/3-inch sensor:

• Diagonal: 68.4°
• Horizontal: 56.6°
• Vertical: 44°

1/2-inch sensor:

• Diagonal: 58.1°
• Horizontal: 47.2°
• Vertical: 36.3°

To calculate or test the actual field of view in millimeters, provide POMEAS with:

• Camera model
• Active sensor dimensions
• Camera resolution
• Pixel size
• Available working distance
• Required horizontal field of view
• Required vertical field of view
• Smallest inspection feature
• Required inspection accuracy

Recommended Applications

Packaging and Label Inspection

The wide field of view can help capture cartons, labels, bottle groups, trays, packages, and multiple printed areas in a single image.

This configuration is suitable when overall presence, position, orientation, label placement, or printed information must be checked.

Application boundary: Small characters, fine barcodes, and tiny print defects must be evaluated against the camera pixel size and total field of view.

Assembly and Component-Presence Verification

The 8mm focal length can cover a broader assembly area, allowing multiple components, fasteners, connectors, or installation positions to be checked at the same time.

The focus and iris locking mechanisms help maintain the adjusted settings after system installation.

Application boundary: When individual components are very small, a longer focal length or smaller field of view may place more pixels on each feature.

Robot Guidance and Part Localization

The wider view can help a vision system locate parts across a larger pickup, loading, or positioning area.

It may be used for part-presence detection, orientation recognition, coarse position guidance, or monitoring of a broader working region.

Application boundary: A conventional wide-angle FA lens introduces perspective effects when object height changes. Applications requiring stable magnification across different heights may require telecentric or 3D vision.

Conveyor and Production-Line Monitoring

The lens can be used when a camera needs to observe a wide conveyor section, multiple products, or a larger machine area from a limited installation distance.

Application boundary: Conveyor speed, exposure time, motion blur, lighting intensity, and object spacing must be considered separately from the lens specification.

General Surface and Contamination Inspection

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

Application boundary: A large field of view reduces the number of pixels available for each defect. Small or low-contrast defects may require a smaller inspection area, higher magnification, or specialized lighting.

Selection Notes

Choose This 8mm Lens When

• A wide inspection area must fit into one image
• Camera installation distance is limited
• The camera uses a 2/3-inch or smaller sensor
• A 10MP lens rating is required
• Several objects or inspection regions must be captured together
• A C-mount interface is available
• The required focusing condition is within the published 0.25 m to infinity range

Choose a Longer Focal Length When

• The 8mm field of view is wider than required
• Small details need more camera pixels
• The inspection object occupies only a small portion of the image
• Perspective appearance needs to be reduced by increasing camera distance
• A smaller and more concentrated inspection region is preferred
• Edge detail at a large field of view is insufficient for the task

When a Standard FA Lens Is Usually Sufficient

A fixed focal FA lens may be suitable for:

• Presence and absence inspection
• Packaging verification
• Label-position checks
• Barcode and character reading
• General surface inspection
• Assembly verification
• Robot localization
• Production-line monitoring

When to Consider a Telecentric Lens

A telecentric lens should be considered when:

• Accurate dimensional measurement is the main objective
• Magnification must remain stable as object height changes
• Perspective error cannot be accepted
• Edge location must remain consistent across different depths
• The measurement tolerance is too strict for a conventional FA lens
• A wide-angle perspective view would affect the measurement result

When This Lens May Not Be Suitable

The PMS-LFEHH-0824M(D) may not be suitable when:

• The camera sensor is larger than 2/3 inch
• The camera does not use a compatible C-mount interface
• The required field of view is much smaller than the 8mm lens provides
• Very small defects must be detected across a large object area
• The focus condition is outside the published 0.25 m to infinity range
• High-accuracy dimensional measurement is required without calibration
• The object has significant height variation and perspective change cannot be accepted
• A verified distortion percentage is required before selection
• The required wavelength or spectral performance has not been confirmed

FAQ

Can the PMS-LFEHH-0824M(D) be used with a 2/3-inch camera?

Yes. The lens is specified for 2/3-inch sensors with an active image size of 11 mm. The camera must also have a compatible C-mount interface.

Can this lens be used with a 1/2-inch sensor?

Yes. The product sheet provides an angle of view for 1/2-inch sensors. At the same working distance, the 1/2-inch sensor will capture a narrower field of view than a 2/3-inch sensor.

Does the lens work with every 10MP camera?

Not automatically. Camera sensor dimensions and pixel size differ between camera models. The sensor format, pixel pitch, mount, field of view, and smallest required inspection feature should be confirmed.

What field of view will the 8mm lens provide?

The exact field of view in millimeters depends on the sensor dimensions and working distance. The supplied sheet provides angular field-of-view values but does not provide a verified linear field of view for a specific installation.

How is an 8mm lens different from a longer focal-length lens?

At the same sensor size and working distance, an 8mm lens captures a wider area. A longer focal length produces a narrower view and places more camera pixels across a smaller object region.

Is this lens suitable for dimensional measurement?

It may be used in a calibrated system when the total measurement performance has been tested. However, the supplied sheet does not provide numerical distortion data or guaranteed measurement accuracy. A telecentric lens is generally more appropriate when perspective and magnification variation must be minimized.

Does the lens have manual focus and iris controls?

Yes. Both focus and iris are manually adjusted and include locking mechanisms to help secure the settings after installation.

Does POMEAS provide a numerical distortion value for this model?

The product sheet describes the lens as providing low-distortion imaging, but it does not provide a numerical distortion percentage. A confirmed value or test report is required before using distortion as a guaranteed specification.

Request Lens Selection Support

To confirm whether the PMS-LFEHH-0824M(D) is suitable for your vision system, please provide:

• 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

POMEAS will review sensor coverage, expected field of view, pixel resolution, mechanical compatibility, and application conditions before recommending the final lens configuration.