Name: 4mm UC Series Fixed Focal Length Lens
Brand: TECHSPEC
SKU: 33-300
Price: ₹20,358

Specifications

General

Type:

Fixed Focal Length Lens

Imaging Lens Type:

High Performance Lens with Compact Form Factor

Physical & Mechanical Properties

Iris Option:

Variable

Length (mm):

40.60

Maximum Diameter (mm):

Outer Diameter (mm):

40.00

Weight (g):

Maximum Rear Protrusion (mm):

2.8

Maximum Length (mm):

40.6

Optical Properties

Horizontal Field of View, 1/2" Sensor:

23.0mm - 84.8°

Horizontal Field of View, 1/3" Sensor:

15.6mm - 65.4°

Maximum Image Circle (mm):

8.00

Numerical Aperture NA, Object Side:

0.0894

Horizontal Field of View @ Max Sensor Format:

23.0mm - 84.8°

Number of Elements (Groups):

8 (7)

Horizontal Field of View, 1/2.5" Sensor:

20.0mm - 77.8°

Focal Length FL (mm):

4.00

Primary Magnification PMAG:

0.343

Working Distance (mm):

0 - ∞

Aperture (f/#):

f/1.8 - f/11

Coating:

λ/4 MgF₂

Coating Specification:

λ/4 MgF₂

Entrance Pupil Position (mm):

12.69

Horizontal Field of View, 1/4" Sensor:

11.2mm - 49.7°

Object Space Principal Plane (mm):

16.04

Image Space Principal Plane (mm):

5.84

Field of View at Max Sensor Format:

Horizontal: 23.1mm - 84.8°
Vertical: 15.7mm - 65.3°
Diagonal: 33.7mm - 101.6°

Maximum Distortion (%):

-20.43

Exit Pupil Position (mm):

-12.68

Lens Wavelength Range:

VIS

Sensor

Optimized Sensor Format:

1/2.5"

Maximum Sensor Format:

1/2"

Threading & Mounting

Filter Thread:

M62 x 0.75 (Male)

Filter Thread Adapter:

#33-308 (Required)

Front Thread:

M40 x 0.5 (Male)

Mounting Diameter (mm):

30.0

Mount:

C-Mount

Environmental & Durability Factors

Storage Temperature (°C):

-20 to +60 For questions regarding operating temperature please contact our support team

Regulatory Compliance

RoHS 2015:

Compliant

Certificate of Conformance:

View

REACH 241:

Compliant

Product Details

Up to 1/1.8", C-Mount Lens
Up to 12 MegaPixels, 1.85µm Pixel Size Sensors
Ultra-Compact (UC), High Resolution Lens for Small Sensors
4mm to 35mm Focal Length

Our ultra-compact, TECHSPEC® UC Series Fixed Focal Length Lenses are designed to optimize performance, cost, and size without sacrificing quality or feel. Designed for pixels that are ≤2.2μm, these lenses provide high levels of resolution (>200 lp/mm) across the sensor and are compatible with all standard C-Mount cameras. TECHSPEC® UC Series Fixed Focal Length Lenses feature focus and iris adjustments, as well as recessed set screws, and are manufactured for use at typical machine vision working distances. While they are optimized for 1/2.5" sensors, many focal lengths will work on sensors up to 1/1.8". The TECHSPEC® UC Series Fixed Focal Length Lenses are an outstanding option for use on all smaller format camera sensors, along with both short and long working distance applications, making them ideal for inspection, factory automation, biomedical devices, and a broad range of other applications.

Note: For fixed aperture instrumentation versions, see our TECHSPEC® UCi Series Fixed Focal Length Lenses.

Edmund Optics has created a family of high-performance ultra-compact optical designs (the UC Series family) and developed 3 customized optomechanical solutions targeted for specific applications. These lens sub-families utilize the same optics as the UC Series lenses providing the same optical performance in a variety of optomechanical solutions to meet your application requirements:

UC Series: Features locking cam focus and iris adjustment in an ultra-compact design and is the most adjustable version of these optical designs; they are the typical high-quality machine vision lenses.

UCi Series: Simplified mechanics featuring fixed apertures with compact housing. Industrial Ruggedization for reduced size, cost, and locked focus.

UCr Series: All optics glued in place and a locking C-clamp focus ring. Stabilized Ruggedization for reduced pixel shift and improved focus stability.

UCw Series: Waterproof, designed to meet IEC Ingress Protection Code IPX7 to withstand exposure to water up to 1 meter depth for 30 minutes.

Technical Information

#33-300, 4mm UC Series Fixed Focal Length Lens, Distortion Plot

#33-300, 4mm UC Series Fixed Focal Length Lens, Relative Illumination Plot

#33-300, 4mm UC Series Fixed Focal Length Lens, Working Distance versus Field of View Plot

#33-300, 4mm UC Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 75mm Working Distance, f2.8

#33-300, 4mm UC Series Fixed Focal Length Lens, Depth of Field Plot, 75mm Working Distance, f2.8

#33-300, 4mm UC Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 75mm Working Distance, f4

#33-300, 4mm UC Series Fixed Focal Length Lens, Depth of Field Plot, 75mm Working Distance, f4

#33-300, 4mm UC Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 200mm Working Distance, f2.8

#33-300, 4mm UC Series Fixed Focal Length Lens, Depth of Field Plot, 200mm Working Distance, f2.8

#33-300, 4mm UC Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 200mm Working Distance, f4

#33-300, 4mm UC Series Fixed Focal Length Lens, Depth of Field Plot, 200mm Working Distance, f4

Dimensions
Focal Length (mm)	A (mm)	B (mm)	C (mm)	D (mm)	Filter Thread
4	40	40.6	30	2.8	M62.0 x 0.75 with required filter adapter #33-308
6	36	40.9	30	3.2	M34.0 x 0.5
8	30	40.61	30	5.15	M34.0 x 0.5
12	30	35.2	30	2.7	M25.5 x 0.5
16	30	29.13	30	3.38	M25.5 x 0.5
25	30	31.28	30	4.0	M25.5 x 0.5
35	30	52.76	30	4.58	M25.5 x 0.5

Accessories

Note: Compatible accessories for individual stock numbers may vary. If unsure about which accessories work with your products, please contact us here.

	Title	Compare	Stock Number	Price	Buy

	Filter Adapter M62 x 0.75 from M40 x 0.5 (Female)		#33-308	2,880 ₹2,880 Request Quote	10 to 12 days ×

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Imaging Lens Selector

Frequently Purchased Together

#03-618 - 5mm Spacer to convert CS-Mount Cameras to C-Mount

₹2,070

#03-629 - C-Mount Double Male Thread Ring

₹2,439

#03-630 - C-Mount Double Female Thread Ring

₹2,439

#03-676 - 7.0 - 40.0 Optic Height, English Bar-Type Optic Holder

₹7,262

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Best Practice #2 Don't Believe Your Eyes

Join Greg Hollows, Director of the Imaging Business Unit and EO's Imaging Expert, as he reviews some Best Practice to consider when designing an imaging system.

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Best Practice #3 Don't Get Too Close

Join Greg Hollows, Director of the Imaging Business Unit and EO's Imaging Expert, as he reviews some Best Practice to consider when designing an imaging system.

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Best Practice #7 No Universal Solution

Join Greg Hollows, Director of the Imaging Business Unit and EO's Imaging Expert, as he reviews some best practices to consider when designing an imaging system.

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Best Practice #9 Be A Control Freak

Join Greg Hollows, Director of the Imaging Business Unit and EO's Imaging Expert, as he reviews some best practices to consider when designing an imaging system.

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Best Practice #10 Be The Squeaky Wheel

Join Greg Hollows, Director of the Imaging Business Unit and EO's Imaging Expert, as he reviews some best practices to consider when designing an imaging system.

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Best Practice #11 Make A List

Join Greg Hollows, Director of the Imaging Business Unit and EO’s Imaging Expert, as he reviews some best practices to consider when designing an imaging system.

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The Impact of Distortion

Nick Sischka explains distortion in this hands-on demonstration from the Edmund Optics 2021 Imaging Innovation Summit.

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Calculating Lens Resolution with Precision

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Deciphering Lens Specifications and Choosing the Proper Lens

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A Closer Look at Resolution Testing

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I’ve been using the thin lens approximation to calculate the minimum object distance and field of view of an imaging lens and camera I have, is there a simple formula for estimating these parameters?

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How do I know what lens mount is best to use for my imaging or vision system?

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What are M12 (S-Mount) lenses?

M12 or S-Mount lenses are a type of compact imaging lens used in space-constrained applications.

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What is an MVO Double Gauss imaging lens?

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What are fixed focal length lenses?

Fixed focal length lenses are entocentric imaging lenses used in machine vision.

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What different types of fixed focal length lenses does Edmund Optics offer?

Edmund Optics designs and manufacturers many types of imaging lenses.

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What different types of fixed focal length lenses does Edmund Optics offer?

Imaging lenses feature a wide variety of lens mounts, all of which offer different benefits.

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Angular Field of View (AFOV)

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Aperture (f/#)

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Aperture Stop

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Entrance Pupil

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Exit Pupil

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Field

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Field Efficiency

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Fixed Focal Length Lens

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F-Mount

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Image Circle

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Line Pair (lp)

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Vignetting

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Working Distance (WD)

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Working f/#

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Zoom

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Imaging System Parameter Calculator

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Imaging Lens Selector

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Sensors and Lenses

Imaging lenses and sensors must be paired together with special attention.

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Imaging Fundamentals

Want to understand the basic concepts of imaging? Learn more about essential terms and how they incorporate in the imaging industry at Edmund Optics.

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Contrast

Is the definition on your image not clear? Go back to the basics and learn more about the contrast of an image and its importance at Edmund Optics.

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Depth of Field and Depth of Focus

Are you getting depth of field and depth of focus confused? Discover the differences and how to distinguish the two from one another at Edmund Optics.

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Lens Mounts

There are numerous mount types for connecting an imaging lens to a camera. Depending on the application, some mounts are more useful than others.

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Distortion

Distortion is an individual aberration that misplaces information but can be calculated or mapped out of an image. Learn more about distortion at Edmund Optics.

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System Throughput, f/#, and Numerical Aperture

When it comes to your lens, the f/# is one of the most important settings because it controls multiple parameters. Find out what the f/# controls at Edmund Optics.

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Machine Vision Filter Technology

While working with machine vision, there are different types of filters that can be used to alter the image. Find out about the different types at Edmund Optics.

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From Lens to Sensor: Limitations on Collecting Information

Trying to understand how much information you can obtain from a lens and sensor? Learn more about the limitations of collecting data at Edmund Optics.

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Object Space Resolution

Are you new to imaging and want to learn more about lens magnification? Learn more about lens magnification and other key imaging concepts at Edmund Optics.

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Relative Illumination, Roll-Off, and Vignetting

In order to understand vignetting, it is important to understand sensor sizes, formats, and roll-off and relative illumination. Find out more at Edmund Optics.

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Wavelength Effects on Performance

Wavelengths can be both valuable or hazardous when trying to obtain information from an imaging system. Learn more about fixing wavelength issues at Edmund Optics.

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Liquid Lens M12 Imaging Lenses

TECHSPEC® Liquid Lens M12 Imaging Lenses from Edmund Optics combine a high-resolution with the electronic auto-focus of an integrated liquid lens

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Liquid Lens Cx Series Fixed Focal Length Lenses

TECHSPEC® Liquid Lens Cx Series Fixed Focal Length Lenses from Edmund Optics offer both high resolution and fast electronic focus.

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Why Should I Use a Lens Designed Specifically for SWIR Wavelengths?

Short wave infrared (SWIR) imaging applications require specialized imaging optics, as lenses designed for visible use are not optimized for SWIR wavelengths

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How an Edmund Optics Imaging Lens is Made

Imaging lens assemblies are vital components for a wide range of cutting edge applications including machine vision, biomedical instruments, factory automation, and robotics.

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Imaging Innovation Summit Keynote

Master the mindset needed for building an imaging system from asking the right questions to properly combining imaging technologies.

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Edmund Optics Imaging Lab Module 1: Imaging Overview

Learn how to specify imaging system components.

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Edmund Optics Imaging: Telecentric Lenses versus Hypercentric Lenses

Join EO's Nick Sischka, Director of Imaging, as he inspects pipes for various defects using the TECHSPEC Telecentric Lens versus the TECHSPEC Hypercentric Lens.

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Best Practice #4 Light Up Your Life

Join Nick Sischka, Vision Solutions Specialist and member of EO's Imaging Team, as he reviews some best practices to consider when designing an imaging system

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LIGHT TALK - EPISODE 2: Increasing Imaging Sensor Sizes with Katie Schwertz

Join our discussion about increasing imaging sensor sizes and what that means for optical designers in the second episode of our LIGHT TALKS series.

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LIGHT TALK - EPISODE 5: Ruggedized Imaging Lenses with Cory Boone and Ben Weaver

The expansion of automation has made the ruggedization of imaging lenses from shocks, vibrations, and temperature swings more important than ever before.

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Ruggedized Imaging Systems – TRENDING IN OPTICS: EPISODE 9

A new generation of harsh environment lenses has been developed to support the spread of automation and protect their imaging systems.

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Manipulating Wavebands: Color & Filters

Nick Sischka explains why color consideration and illumination are so important for machine vision in this hands-on demonstration from the Edmund Optics 2021 Imaging Innovation Summit.

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Lens Selection Guide, Part 2

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The makings of a successful imaging lens, Part Three: Testing and metrology, ensuring you get what you asked for

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The makings of a successful imaging lens, Part Two: Performance-based specifications and their design considerations

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The makings of a successful imaging lens, Part One: Application and specification development

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Vision & Sensors Lens Selection Guide, Part 1

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What is the difference between Primary Magnification and System Magnification?

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I need a video lens for my camera - but where do I start?

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What is the difference between depth of field and depth of focus?

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Which type of colored filter is best for my imaging application?

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Back Flange Distance

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Depth of Field (DOF)

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Depth of Focus

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Distortion

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Distortion, Non-Monotonic

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Field Curvature

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Focal Length Extender

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Horizontal Resolution

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Hyperfocal Distance

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Primary Magnification (PMAG)

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Relative Illumination (RI)

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S-Mount

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Sliding Focusing Mechanism

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T-Mount

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Best Practices for Better Imaging

Do you use imaging systems constantly in your professional field? Learn top tips for improving your imaging system and practices at Edmund Optics.

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Aberrations

Need help understanding aberration theory? Learn about a few fundamental concepts to help clarify your understanding at Edmund Optics.

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The Airy Disk and Diffraction Limit

The diffraction pattern caused when light passes through an aperture is called the Airy Disk. Find out how the Airy Disk can impact your image at Edmund Optics.

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What is Imaging?

In imaging, light rays are mapped from an object onto an imaging sensor by an imaging lens, to reproduce the characteristics and likeness of the object for the purposes of inspection, sorting, or analysis.

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What is SWIR?

Have a question about short-wave infrared (SWIR)? Find definitions, application uses, and examples at Edmund Optics.

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Resolution and MTF Testing

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Hyperspectral and Multispectral Imaging

Are you trying to gauge depth of field in your imaging system? Take a closer look at this article on depth of field calculations at Edmund Optics.

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Lens Types, Resolution, and Sensor Coverage

No imaging lens is the ideal choice for every type of imaging sensor, as multiple tradeoffs must be weighed and prioritized for every application.

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Axial and Lateral Chromatic Aberration

Chromatic aberrations impact the performance of imaging systems in many different ways, as exemplified in this hands-on demonstration.

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Edmund Optics Imaging Lab 1.1: Field of View

Learn how to specify imaging system components.

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Edmund Optics Imaging Lab 1.2: Working Distance

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Edmund Optics Imaging Lab 1.5: Sensor Size

Learn how to specify imaging system components.

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Edmund Optics Imaging Lab 3.2: The W of Illumination Geometry

Learn how to specify imaging system components.

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Edmund Optics Imaging Lab 3.3: Directional Illumination

Learn how to specify imaging system components.

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Edmund Optics Imaging Lab 3.4: Directional Illumination of Ring Lights

Learn how to specify imaging system components.

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Edmund Optics Imaging Lab 3.5: Backlights

Learn how to specify imaging system components.

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Edmund Optics Imaging Lab 3.6: Dome Lights

Learn how to specify imaging system components.

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Edmund Optics Imaging Lab 3.7: Line Lights

Learn how to specify imaging system components.

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Best Practice #5 Color Matters

Join Nick Sischka, Vision Solutions Specialist and member of EO's Imaging Team, as he reviews some best practices to consider when designing an imaging system.

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Best Practice #6 There Can Be Only One

Join Nick Sischka, Director of Imaging, as he reviews some best practices to consider when designing an imaging system.

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LIGHT TALK - EPISODE 1: Machine Vision Trends with Nick Sischka

Join our discussion around machine vision trends including such as increasing resolution and new sensors in the first episode of our LIGHT TALKS series.

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Hyperspectral & Multispectral Imaging – TRENDING IN OPTICS: EPISODE 7

Hyperspectral and multispectral imaging are imaging technologies that capture information from a broader portion of the electromagnetic spectrum.

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Next generation image sensors: Are suppliers ready to meet growing customer expectations?

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If I want to design with your lenses and lens assemblies, how do I get the information that I need?

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Contrast

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Spatial Frequency

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Resolution and Contrast Comparison

Learn how Edmund Optics maintains optical performance across the entire image plane through this resolution and contrast comparison using our C Series FFL lens.

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Edmund Optics Imaging Lab 1.4: Depth of Field

Learn how to specify imaging system components.

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Edmund Optics Imaging Lab 1.7: Contrast In Depth

Learn how to specify imaging system components.

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Diffraction Limit

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Modulation Transfer Function (MTF)

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Nyquist Limit

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Parfocality

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Resolution

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Resolving Power

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Resolution

Do you want to understand how a lens works? To do so, you must learn key terms for how the lens functions, including resolution. Find out more at Edmund Optics.

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