Machine Vision Lens for Liquid Fill Level Inspection: How to Detect Underfill, Overfill, Meniscus Position and Fill-Level Variation in Bottles and Vials

Liquid fill level inspection is a common machine vision requirement in beverage processing, pharmaceutical filling, food production, cosmetics, chemicals and automated packaging lines. Manufacturers need to verify that each bottle, vial or container contains liquid within an acceptable fill range before downstream packaging or dispatch. A production system may need to detect underfilled containers, identify overfill, measure the visible liquid level relative to the bottle or vial, evaluate meniscus position, and determine whether fill-height variation between consecutive products remains inside process limits. Selecting the correct machine vision lens for liquid fill level inspection is important because the complete container may need to remain visible while the acceptable fill-height variation can be only a small fraction of the bottle height.

Buyers searching for machine vision lens for fill level inspection, bottle fill level inspection camera lens, liquid level inspection machine vision, underfill overfill detection camera, vial fill level inspection lens, meniscus position inspection, or industrial camera lens for bottling line inspection are generally trying to solve a geometric measurement problem. The camera must see enough of the bottle or vial to establish a reliable physical reference, while the liquid interface must receive enough native sensor pixels for small vertical movement to be measured consistently. A fill line can appear clearly visible to an operator while the actual production tolerance remains under-resolved.

The Kyptec Automation® Machine Vision Lens collection provides multiple conventional focal lengths and 5 MP, 10 MP and 25 MP resolution classes across different industrial camera formats. Current options include 2/3", 1" and larger-format Machine Vision Lens families, giving bottling-machine OEMs and system integrators practical choices for wider multi-container views, controlled single-bottle inspection and high-resolution fill-level measurement.

Start With the Smallest Fill-Level Difference That Must Be Rejected

A severely underfilled bottle is easy to identify because the visible liquid level differs substantially from nominal. The more demanding optical requirement is normally the smallest acceptable difference between a good container and a reject.

If a production process requires detection of a 1 mm fill-height deviation, that 1 mm variation should determine the minimum spatial sampling requirement. Designing the system only around the total bottle height can produce a visually attractive image without sufficient sensitivity to the actual fill tolerance.

The Machine Vision Lens should therefore be selected around the smallest underfill, overfill or meniscus-position change that must reliably affect the inspection result.

Fill Height Should Be Measured Relative to the Container

A liquid level should not normally be evaluated only against a fixed pixel row in the camera image because bottles and vials can move slightly within the fixture or conveyor.

A stronger inspection method first locates a stable container reference and then measures the liquid level relative to that reference. Depending on container geometry, the reference can be a bottom edge, shoulder, neck transition, flange or another repeatable physical feature.

The Machine Vision Lens should include enough container geometry to establish this reference while maintaining sufficient image sampling around the fill line itself.

Calculate Pixels per Millimetre From the Actual Vertical FOV

A useful starting relationship is:

Pixels per millimetre = sensor pixels in the measurement direction ÷ physical field of view in millimetres

If 3,000 vertical sensor pixels cover a 150 mm container height, simplified sampling is approximately 20 pixels/mm. A 1 mm fill-level change corresponds to approximately 20 pixels before other practical factors are considered.

If the field is expanded to 300 mm, sampling decreases to approximately 10 pixels/mm, so the same fill-height difference occupies about 10 pixels.

This is why unnecessary vertical FOV can reduce liquid fill level measurement accuracy even when camera resolution remains unchanged.

Underfill Detection Is a Lower-Limit Measurement

Underfill inspection determines whether the visible liquid interface lies below the minimum acceptable fill position.

The system can establish a reference coordinate from the bottle or vial and compare the measured liquid level with a lower acceptance limit.

The Machine Vision Lens should provide enough spatial resolution for a container close to that lower threshold to remain distinguishable from an acceptable product.

A large underfill condition should not be used as the only qualification sample because it does not demonstrate sensitivity near the real production boundary.

Overfill Detection Is an Upper-Limit Measurement

Overfill inspection works similarly but compares the liquid level with the maximum acceptable fill position.

A container can therefore be classified using a permitted fill-level window rather than one nominal line.

The Machine Vision Lens should provide sufficient sampling for both the lower and upper acceptance boundaries, especially where the acceptable range is narrow.

Fill-Level Variation Can Be More Important Than Nominal Fill Height

Some production processes require monitoring the consistency of fill height from one bottle to the next rather than only identifying major underfill or overfill.

A vision system can measure the fill position of each container and evaluate the distribution across the production sequence.

The optical system should therefore provide stable image scale and edge localization so small bottle-to-bottle fill-height differences reflect the actual process rather than camera or product-position variation.

Meniscus Position Should Be Defined Consistently

The visible liquid interface may not always appear as a perfectly straight line. Depending on the container and liquid, the meniscus can curve or present a transition region rather than a single ideal boundary.

A robust inspection should define which geometric feature of the visible interface is used as the fill-level reference. For example, the system may use a fitted center position, a defined average boundary or another repeatable visible characteristic.

The Machine Vision Lens should provide enough detail around the complete relevant meniscus region so the measurement is based on a repeatable geometric definition rather than one unstable pixel location.

Meniscus Width and Fill-Level Height Are Different Optical Considerations

A liquid interface can extend horizontally across much of the bottle while the production tolerance is measured vertically.

This means a wide horizontal feature does not automatically make fill-level measurement easy.

The important optical parameter is how many sensor pixels represent vertical movement of the interface.

The camera orientation and Machine Vision Lens FOV should therefore be chosen so sufficient pixels are available in the direction of the fill-level measurement.

A 16 MM 10 MP Lens Can Support Broader Bottle or Vial Coverage

For compatible 2/3" industrial camera systems, the Kyptec Automation® KL-1226 16 MM Machine Vision Lens With 10 MegaPixel & 2/3" Format Lens provides 16 mm focal length, 10 MP resolution, C-mount, 2/3" image format and an F2.8–16 aperture range. Kyptec Automation® lists pharmaceutical and food/beverage processing among the major applications for this lens.

This focal-length class can be evaluated where the complete bottle, vial or a wider portion of the filling line needs to remain visible. Final suitability should be calculated from the camera sensor, container dimensions, working distance and smallest required fill-height difference.

A 25 MM 10 MP Lens Can Provide More Controlled Fill-Level Framing

Where the necessary container reference and fill-level region can fit within a tighter field, the Kyptec Automation® KL-1228 25 MM Machine Vision Lens With 10 MegaPixel & 2/3" Format Lens provides 25 mm focal length, 10 MP resolution, C-mount, 2/3" image format and an F2.8–16 aperture range. Pharmaceutical and food/beverage processing are also listed among the product's major applications.

Tighter legitimate framing can allocate more sensor pixels to the liquid-level region. This can be valuable where the acceptable underfill and overfill window is narrow and broad scene coverage is unnecessary.

Bottle Height Should Not Automatically Define the FOV

A common optical-design mistake is to include the entire bottle when the actual inspection only requires the liquid level and one nearby container reference.

If the bottle bottom, cap and other distant features are not needed, including them may unnecessarily reduce pixels per millimetre around the fill line.

The correct FOV should include only the geometry necessary to perform the inspection reliably plus realistic product-position tolerance.

This can substantially improve native spatial sampling without changing the camera resolution.

Multi-Bottle Inspection Reduces Pixels Available to Each Fill Line

High-throughput filling systems may attempt to inspect several bottles or vials simultaneously.

The wider field increases the number of products visible per image but reduces the number of sensor pixels available to each individual liquid level.

If the fill-height tolerance remains unchanged, the optical system should calculate whether the smallest acceptable difference still receives adequate sampling in the multi-container configuration.

The Machine Vision Lens should therefore be selected for the complete production field, not only for one isolated bottle.

Bottle Spacing Should Be Included in the Optical Calculation

When several containers are inspected simultaneously, the empty gaps between bottles also consume FOV.

If excessive conveyor spacing is included, fewer pixels are available to the actual liquid-level features.

The machine layout and optical design should therefore be considered together so the required field is used efficiently.

Container Position Variation Can Mimic Fill-Level Change

If one bottle appears higher in the image because its physical position changes, a fixed image-based fill reference can falsely indicate overfill or underfill.

The vision system should therefore locate a stable bottle reference for each individual container and calculate the fill height relative to that product.

The Machine Vision Lens should provide enough container geometry for this compensation to remain accurate across the allowed production-position range.

Bottle Tilt Can Change the Apparent Liquid Interface

A tilted container can alter the visible relationship between the liquid interface and container geometry.

This is particularly important when the acceptable fill-level tolerance is tight.

Product presentation should therefore remain as stable as practical, and the inspection algorithm should identify abnormal tilt or establish a container coordinate system before evaluating the fill level.

The lens cannot remove real geometric changes caused by a tilted bottle.

Vials Can Create a More Demanding Resolution Requirement

Vials are often smaller than bottles, but the acceptable fill-height variation may also be small.

If multiple vials are included in one image, each liquid interface can occupy only a limited number of sensor pixels.

For vial fill level inspection, the smallest permitted level change should be calculated carefully against the complete multi-vial FOV.

A physically smaller product is not automatically an easier machine vision application.

Vial Neck and Shoulder Geometry Can Provide Useful References

Depending on the product design and inspection view, stable vial boundaries can provide references for locating the liquid level.

The system can measure the distance from the fill line to a known container feature rather than relying on absolute image coordinates.

This helps distinguish true liquid-level variation from normal positional movement of the vial.

Transparent Containers Require Stable Viewing Geometry

When inspecting liquid through transparent bottles or vials, the visible liquid boundary can be affected by the container wall and viewing geometry.

This blog does not treat general transparent-material inspection as the primary topic; the important point for fill-level measurement is that the production setup should remain geometrically stable.

The Machine Vision Lens should be selected and qualified using the actual bottle or vial, actual working distance and final camera position so the measured fill interface corresponds consistently with the production acceptance limits.

Container Curvature Can Influence Apparent Meniscus Geometry

Cylindrical bottles and vials can cause the liquid interface to look different across the container width because the product wall is curved.

For this reason, the inspection should define a stable portion or fitted representation of the visible fill boundary rather than measuring arbitrary local points.

The Machine Vision Lens needs enough horizontal context to characterize the interface while still providing adequate vertical resolution.

High Resolution Helps When Several Vials or Bottles Must Stay in View

Sometimes the FOV cannot be reduced because several containers need simultaneous inspection.

In that case, higher total optical resolution can provide more image samples across each individual fill-height tolerance.

For compatible larger-format camera systems, the Kyptec Automation® KL-1240 25 MM Machine Vision Lens With 25 MegaPixel & 1.1" Format Lens provides 25 mm focal length, 25 MP resolution, C-mount and an F2.8–22 aperture range. The official product page identifies model KL-1240 and lists pharmaceutical and food/beverage processing among its major application areas.

This type of configuration can be evaluated when relatively broad inspection coverage and small fill-height tolerances must coexist.

Higher Resolution Should Increase Pixels on the Fill Interface

More megapixels are valuable only if the additional sensor samples remain concentrated on the actual fill-level inspection area.

If the field is expanded at the same time, the expected increase in pixels per millimetre can be reduced or eliminated.

The stronger approach is to establish the minimum legitimate FOV first and then use higher resolution to increase native sampling of the liquid interface and container references.

Fill-Level Inspection Should Consider the Entire Acceptance Window

A production system should not be qualified only at one nominal fill height.

Testing should include liquid levels near the minimum acceptable limit, maximum acceptable limit, slightly below the lower limit and slightly above the upper limit.

This verifies whether the lens-camera system can distinguish real production boundaries rather than only obviously incorrect containers.

Fill-Level Repeatability Should Be Checked Across the Image

If several bottle lanes or different conveyor positions are included within one camera field, a container can appear near the center or toward the outer image region.

The smallest fill-level variation should remain detectable at every valid location.

The Machine Vision Lens should therefore be qualified across the complete production field, not only using one perfectly centered bottle.

Working Distance Stability Matters for Measurement

In a conventional Machine Vision Lens system, changes in object distance can affect apparent image scale.

If bottles or vials move significantly toward or away from the camera, the same physical fill-height difference can correspond to a slightly different pixel distance.

Stable guiding and consistent product presentation improve repeatability when fill-level tolerance is tight.

A 25 MM 1-Inch Lens Can Support Compatible Larger-Sensor Systems

For compatible 1" industrial camera systems, the Kyptec Automation® KL-1216 25 MM Machine Vision Lens With 10 MegaPixel & 1" Format Lens provides 25 mm focal length, 10 MP resolution, C-mount, 1" image format and an F1.4–16 aperture range. Kyptec Automation® lists both pharmaceutical and food/beverage processing among the major applications.

This model can be considered when the camera architecture uses a compatible 1" sensor and the required field and working distance match the optical geometry.

Longer Focal Lengths Can Support Localized Fill-Level Inspection

Not every filling line requires the complete bottle or several containers in one image.

A dedicated inspection station may need only a smaller portion around the expected liquid level.

In that case, a longer focal length can provide tighter framing from an appropriate working distance, increasing the proportion of sensor pixels assigned to the liquid-level region.

The final choice should still retain enough bottle geometry to establish a reliable reference.

A 50 MM 25 MP Lens Can Support Local High-Resolution Fill Inspection

For compatible larger-format systems where tighter high-resolution framing is appropriate, the Kyptec Automation® KL-1244 50 MM Machine Vision Lens With 25 MegaPixel & 1.1" Format Lens provides 50 mm focal length, 25 MP resolution, C-mount and an F2.8–22 aperture range. The official page identifies this lens as model KL-1244 and includes pharmaceutical and food/beverage processing among its major applications.

This focal-length class can be evaluated where a localized bottle or vial fill-level region should occupy a larger share of the sensor while complete production-line coverage is unnecessary.

Very Small Containers Need Their Own FOV Calculation

A lens configuration that works for a large bottle should not automatically be assumed suitable for small pharmaceutical vials or other compact containers.

Smaller containers may require a smaller absolute fill-height tolerance.

The smallest container family should therefore be checked independently for required FOV, pixels per millimetre and minimum detectable level variation.

Different Bottle Sizes May Need Different Optical Settings

A filling machine can sometimes handle multiple bottle heights or diameters.

The largest bottle may determine the broadest physical FOV, but the smaller container can create the tighter fill-level resolution requirement.

Each container family should therefore be evaluated independently before standardizing one Machine Vision Lens across the machine.

Underfill and Overfill Should Be Measured From the Same Reference System

Using different geometric references for underfill and overfill can introduce unnecessary inconsistency.

The stronger approach is to establish one stable bottle coordinate system and define both lower and upper fill limits within that system.

The Machine Vision Lens should provide the necessary reference feature and fill-interface detail in the same image.

Fill-Level Monitoring Can Reveal Process Drift Before Hard Failure

If the vision system measures actual fill height rather than only issuing pass/fail decisions, the sequence of measurements can reveal gradual movement toward one acceptance limit.

From an optical perspective, this requires stable and repeatable fill-height localization across normal production.

The Machine Vision Lens should therefore provide sufficient native sampling for small bottle-to-bottle variation instead of only obvious reject conditions.

Meniscus Movement Should Not Be Confused With Bottle Movement

If the bottle moves vertically by 1 mm and the liquid interface moves with it, the fill volume may be unchanged.

Measuring only the interface against the camera frame would produce a false 1 mm fill-level difference.

Relative measurement between the liquid interface and bottle reference is therefore particularly important for reliable automated inspection.

Digital Zoom Cannot Improve Fill-Level Measurement Resolution

Software enlargement can make the liquid interface look larger on a monitor, but it cannot create additional physical image information.

If a 0.5 mm level difference occupies only a few original sensor pixels, digital zoom simply enlarges those same pixels.

The required measurement capability must come from appropriate physical FOV, sensor resolution, focal length and Machine Vision Lens selection.

Final Qualification Should Use Real Underfill and Overfill Limits

A bottle filled to half its intended volume is useful for demonstrating that the camera can see liquid, but it does not prove that the inspection can reject a small production-level underfill.

Final testing should include containers near the lower acceptable limit, lower reject limit, upper acceptable limit and upper reject limit.

The test should also include realistic bottle-position variation and different valid locations across the inspection field.

Why Kyptec Automation® Is a Practical Choice for Liquid Fill Level Inspection

Kyptec Automation® provides a broad Machine Vision Lens portfolio covering multiple focal lengths and conventional 5 MP, 10 MP and 25 MP lens classes across several industrial camera formats. The current portfolio provides practical flexibility for wider multi-container views, tighter single-bottle inspection and higher-resolution systems where small fill-height differences must be measured across a larger field.

For compatible 2/3" systems, Kyptec Automation® KL-1226 16 MM Machine Vision Lens With 10 MegaPixel & 2/3" Format Lens provides a broader 16 mm option, while Kyptec Automation® KL-1228 25 MM Machine Vision Lens With 10 MegaPixel & 2/3" Format Lens provides more controlled 25 mm framing. Both official product pages list pharmaceutical and food/beverage processing among the supported major applications.

For compatible 1" systems, Kyptec Automation® KL-1216 25 MM Machine Vision Lens With 10 MegaPixel & 1" Format Lens provides another 25 mm option with an F1.4–16 aperture range. Where high total optical resolution is required, Kyptec Automation® KL-1240 25 MM Machine Vision Lens With 25 MegaPixel & 1.1" Format Lens provides a 25 MP configuration, while Kyptec Automation® KL-1244 50 MM Machine Vision Lens With 25 MegaPixel & 1.1" Format Lens provides a longer-focal-length high-resolution alternative for localized inspection.

This portfolio breadth enables filling-machine OEMs and system integrators to choose a Kyptec Automation® Machine Vision Lens according to actual container height, number of bottles or vials in one image, fill-level tolerance, camera sensor format and available working distance instead of forcing every filling application into one general-purpose focal length.

Frequently Asked Questions About Machine Vision Lenses for Liquid Fill Level Inspection

1. What is the best Machine Vision Lens for bottle fill level inspection?

The correct Machine Vision Lens depends on bottle height, number of bottles in one image, minimum underfill or overfill difference, camera sensor format and working distance. A multi-bottle station normally needs a broader field, while a dedicated single-container inspection can use tighter framing. Kyptec Automation® provides multiple 10 MP and 25 MP focal-length options that allow the optical configuration to be matched to the actual fill-level inspection geometry rather than selecting by focal length alone.

2. How much resolution is needed to detect underfill in a bottle?

Start with the smallest fill-height difference that must trigger rejection. Calculate pixels per millimetre in the vertical measurement direction and determine how many native sensor pixels represent that difference. A severely underfilled bottle is easy to detect, but a production-limit underfill may require much finer sampling. The minimum rejectable level change should therefore drive the resolution requirement.

3. Can machine vision detect overfilled bottles?

Yes. The system can locate the bottle reference, measure the liquid interface and compare the result with the maximum acceptable fill level. The optical design should provide enough vertical sampling for bottles close to the upper acceptance threshold to remain reliably distinguishable from true overfill.

4. Can the same machine vision system detect both underfill and overfill?

Yes. Once a stable container coordinate system has been established, the system can define a lower and upper permitted fill-height boundary. The measured liquid level can then be compared with that acceptance window. Lens selection should be based on the smallest difference between acceptable and rejectable conditions at either boundary.

5. How can machine vision measure meniscus position?

The system can locate a defined visible characteristic of the liquid interface and calculate its position relative to a bottle or vial reference. Because a meniscus can be curved, a fitted or averaged geometric position may be more repeatable than one isolated pixel point. The Machine Vision Lens should provide sufficient detail across the relevant interface region.

6. Is a 16 mm Machine Vision Lens suitable for bottle fill level inspection?

It can be when the resulting FOV matches the container dimensions and required working distance. For compatible 2/3" systems, Kyptec Automation® KL-1226 16 MM Machine Vision Lens With 10 MegaPixel & 2/3" Format Lens provides 16 mm focal length, 10 MP resolution, C-mount and F2.8–16 aperture range. Its official application list includes pharmaceutical and food/beverage processing.

7. When should a 25 mm Machine Vision Lens be considered for liquid-level inspection?

A 25 mm focal length can be useful where the required bottle reference and liquid-level region fit within a tighter field and more sensor pixels per millimetre are desirable. Kyptec Automation® KL-1228 25 MM Machine Vision Lens With 10 MegaPixel & 2/3" Format Lens provides a current 10 MP option for compatible 2/3" systems.

8. Can several bottles be checked for fill level in one camera image?

Yes, provided the total multi-bottle FOV still gives sufficient pixels in the vertical measurement direction for each container's minimum fill-level tolerance. Adding more bottles increases the field and reduces pixels per individual product. The complete production arrangement should therefore be used when calculating the required optical resolution.

9. Can machine vision inspect fill level in small pharmaceutical vials?

Yes, when the visible liquid interface can be captured reliably and the required fill-height tolerance receives sufficient spatial sampling. Small vials can actually be demanding because several may be inspected at once while the acceptable fill variation remains small. A tighter FOV or higher-resolution compatible lens-camera combination may therefore be useful.

10. Does bottle movement affect fill-level measurement?

It can if the system measures the liquid interface only against fixed camera coordinates. A stronger method locates a reference feature on each bottle and calculates the liquid height relative to that feature. This allows normal product movement to be distinguished from true underfill or overfill.

11. When should a 25 MP Machine Vision Lens be considered for fill-level inspection?

A 25 MP configuration can be valuable when several bottles or vials must remain within the image while small liquid-level differences still require high spatial sampling. For compatible larger-format systems, Kyptec Automation® KL-1240 25 MM Machine Vision Lens With 25 MegaPixel & 1.1" Format Lens provides 25 mm focal length, 25 MP resolution, C-mount and an F2.8–22 aperture range.

12. Can a 1-inch camera use a Kyptec Automation® Machine Vision Lens for fill inspection?

For compatible 1" camera systems, Kyptec Automation® KL-1216 25 MM Machine Vision Lens With 10 MegaPixel & 1" Format Lens provides 25 mm focal length, 10 MP resolution, C-mount, 1" image format and an F1.4–16 aperture range. Final suitability still depends on the camera sensor, working distance and required physical FOV.

13. Can a 50 mm Machine Vision Lens be used for detailed liquid-level inspection?

Yes, where a localized inspection region is sufficient and the available working distance supports the required FOV. Kyptec Automation® KL-1244 50 MM Machine Vision Lens With 25 MegaPixel & 1.1" Format Lens provides 50 mm focal length, 25 MP resolution, C-mount and an F2.8–22 aperture range for compatible larger-format systems.

14. Why can a camera see the liquid level clearly but still measure it inaccurately?

General visibility requires much less spatial information than detecting a small production-limit change in fill height. The interface can look sharp while a 0.5 mm or 1 mm variation corresponds to only a small number of original sensor pixels. Reliable measurement therefore depends on native pixels per millimetre, stable product references and consistent geometry rather than visual appearance alone.

15. Does container curvature affect fill-level inspection?

It can influence the apparent shape of the liquid interface because the bottle or vial wall is curved. The system should therefore use a consistent portion or fitted geometric representation of the meniscus and maintain stable camera-to-container geometry. Final qualification should always use the actual production container.

16. Can different bottle sizes be inspected with the same Machine Vision Lens?

They can if every container fits within the available FOV and the smallest required fill-level difference still receives enough pixels. The largest bottle may determine the required field, while the smallest bottle or tightest fill tolerance may determine the resolution requirement. Each container family should therefore be checked independently before one lens is standardized across the machine.

17. What information should I provide before buying a Machine Vision Lens for liquid fill level inspection?

Provide bottle or vial height and width, required liquid-level inspection region, smallest underfill and overfill difference to detect, number of containers expected in one image, camera sensor format and resolution, available working distance, expected product-position variation and whether the system needs complete-container coverage or only the fill-level region. These inputs allow a Kyptec Automation® Machine Vision Lens to be evaluated according to actual FOV, pixels per millimetre and fill-height tolerance.

Design Liquid Fill Level Inspection Around the Smallest Acceptable Height Difference, Not Only Bottle Size

Reliable liquid fill level inspection requires recognizing that container presence, nominal fill detection, underfill, overfill, meniscus localization and bottle-to-bottle fill variation operate at different levels of optical difficulty. A liquid interface can appear clearly visible while the smallest production-limit change remains inadequately sampled. Likewise, a bottle can shift in the image even though its fill volume has not changed, making container-relative measurement essential for repeatable inspection.

The strongest optical design begins with container dimensions, number of bottles or vials in the image, lower and upper fill limits, minimum required fill-height difference and available working distance. The minimum legitimate FOV is then established, pixels per millimetre are calculated in the measurement direction, and focal length and sensor format are selected so the liquid interface and required container reference use the available sensor efficiently. Final qualification should include borderline underfill, acceptable low fill, acceptable high fill and borderline overfill conditions at realistic production positions.

Kyptec Automation® provides a comprehensive Machine Vision Lens portfolio with multiple focal lengths and conventional 5 MP, 10 MP and 25 MP resolution classes across several industrial camera formats. Current verified examples include Kyptec Automation® KL-1226 16 MM Machine Vision Lens With 10 MegaPixel & 2/3" Format Lens, Kyptec Automation® KL-1228 25 MM Machine Vision Lens With 10 MegaPixel & 2/3" Format Lens, Kyptec Automation® KL-1216 25 MM Machine Vision Lens With 10 MegaPixel & 1" Format Lens, Kyptec Automation® KL-1240 25 MM Machine Vision Lens With 25 MegaPixel & 1.1" Format Lens and Kyptec Automation® KL-1244 50 MM Machine Vision Lens With 25 MegaPixel & 1.1" Format Lens. By matching the appropriate Kyptec Automation® Machine Vision Lens to container geometry, minimum fill-height tolerance, camera sensor format and machine working distance, bottling and filling-machine OEMs can establish a stronger optical foundation for automated underfill detection, overfill inspection, meniscus-position measurement and fill-level variation control.