eo_logo
 
Product added to cart
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

50mm, f/2.8 Cr Series Fixed Focal Length Lens

50mm Cr Series Fixed Focal Length Lens

50mm Cr Series Fixed Focal Length Lens
×
Stock #35-191 10 to 12 days
×
Quantity Selector - Use the plus and minus buttons to adjust the quantity. +
₹26,883
Qty 1+
₹26,883
Volume Pricing
Request Quote
Get Product Downloads
Iris Option:
Fixed
Length (mm):
48.42
Horizontal Field of View, 1/2" Sensor:
31.1mm - 7.3°
Horizontal Field of View, 2/3" Sensor:
42.8mm - 10.0°
Filter Thread:
M30.5 x 0.50 (Male)
Maximum Diameter (mm):
33.8
Weight (g):
83
Horizontal Field of View, 1/3" Sensor:
23.3mm - 5.5°
Maximum Rear Protrusion (mm):
2.06
Maximum Image Circle (mm):
11.00
Numerical Aperture NA, Object Side:
0.031
Horizontal Field of View @ Max Sensor Format:
42.8mm - 10.0°
Number of Elements (Groups):
6 (4)
Horizontal Field of View, 1/1.8" Sensor:
35.0mm - 8.2°
Front Thread:
M30.5 x 0.5 (Male)
Horizontal Field of View, 1/2.5" Sensor:
28.2mm - 6.6°
Type:
Fixed Focal Length Lens
Diameter (mm):
33.80
Focal Length FL (mm):
50.00
Primary Magnification PMAG:
0.207
Maximum Sensor Format:
2/3"
Working Distance (mm):
250 - ∞
Mount:
C-Mount
Aperture (f/#):
f/2.8
Coating:
425 - 675nm BBAR
Coating Specification:
425 - 675nm BBAR
Entrance Pupil Position (mm):
35.62
Horizontal Field of View, 1/4" Sensor:
17.5mm - 4.1°
Object Space Principal Plane (mm):
39.89
Image Space Principal Plane (mm):
-36.26
Field of View at Max Sensor Format:
Horizontal: 42.7mm - 10°
Vertical: 32mm - 7.5°
Diagonal: 53.5mm - 12.5°
Maximum Distortion (%):
0.26
Exit Pupil Position (mm):
-40.93
Lens Wavelength Range:
VIS
Storage Temperature (°C):
-20 to +60 For questions regarding operating temperature please contact our support team

Regulatory Compliance

RoHS:
Certificate of Conformance:

Product Family Description

  • Up to 2/3", C-Mount Lens
  • Up to 7.5 MegaPixels, 2.8µm Pixel Size Sensors
  • Ruggedized (Cr) Designs (50g Shock) of our C Series Lens
  • 3.5mm to 50mm Focal Length
  • Instrumentation (Ci) Versions Also Available

TECHSPEC® Compact Ruggedized (Cr) Series Fixed Focal Length Lenses provide Stabilized Ruggedization, protecting the lens from damage while maintaining optical pointing and positioning after shock and vibration. All individual lens elements are glued in place to reduce object shift on the image. In addition, these lenses feature robust mechanics with a simplified focus and stainless steel locking C-Mount clamp. TECHSPEC® Cr Series Fixed Focal Length Lenses are ideal for calibrated imaging systems such as measurement and gauging, 3D stereo vision, robotics and sensing, autonomous vehicles, and object tracking. The object to image mapping is maintained even after heavy shock and vibration; if the center of the object maps onto the center pixel, it will always map to that same center pixel.

These lenses won the 1st place 2018 Inspect Award and the Silver Level 2018 Innovators Award.

Note: To learn more about ruggedization, visit our Ruggedization Resource Webpage.

Edmund Optics has created a family of high performance optical designs (the C Series family) and developed 6 customized optomechanical solutions targeted for specific applications. These lens sub-families utilize the same optics as the C Series lenses providing the same optical performance in a variety of optomechanical solutions to meet your application requirements:

  • C Series: Features locking cam focus and iris adjustment and is the most adjustable version of these optical designs; they are the typical high quality machine vision lenses.  Also available with a VIS-NIR Broadband Anti-Reflection (BBAR) Coating.
  • Ci Series: Simplified mechanics featuring fixed apertures with compact housing. Industrial Ruggedization for reduced size, cost, and locked focus.
  • Cr Series: All optics glued in place and a locking C-clamp focus ring. Stabilized Ruggedization for reduced pixel shift and improved focus stability.
  • Cx Series: Modular, flexible mechanics allows lenses to be taken apart for easy integration of accessories such as liquid lenses, apertures, and more.
  • Liquid Lens Cx Series: Designed with an integrated liquid lens for quick autofocus.
  • Cw Series: Waterproof, designed to meet IEC Ingress Protection Code IPX7 and IPX9K.
Title CompareStock Number  Price Buy
Filter Adapter M30.5 x 0.5 from M30.5 x 0.5 (Female) #89-943 ₹2,349   Request Quote
  • 10 to 12 days
    ×
#35-191, 50mm, f/2.8 Cr Series Fixed Focal Length Lens, Distortion Plot
#35-191, 50mm, f/2.8 Cr Series Fixed Focal Length Lens, Distortion Plot
#35-191, 50mm, f/2.8 Cr Series Fixed Focal Length Lens, Relative Illumination Plot
#35-191, 50mm, f/2.8 Cr Series Fixed Focal Length Lens, Relative Illumination Plot
#35-191, 50mm, f/2.8 Cr Series Fixed Focal Length Lens, Working Distance versus Field of View Plot
#35-191, 50mm, f/2.8 Cr Series Fixed Focal Length Lens, Working Distance versus Field of View Plot
#35-191, 50mm, f/2.8 Cr Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 500mm Working Distance, f2.8
#35-191, 50mm, f/2.8 Cr Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 500mm Working Distance, f2.8
#35-191, 50mm, f/2.8 Cr Series Fixed Focal Length Lens, Depth of Field Plot, 500mm Working Distance, f2.8
#35-191, 50mm, f/2.8 Cr Series Fixed Focal Length Lens, Depth of Field Plot, 500mm Working Distance, f2.8
#35-191, 50mm, f/2.8 Cr Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 1000mm Working Distance, f2.8
#35-191, 50mm, f/2.8 Cr Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 1000mm Working Distance, f2.8
#35-191, 50mm, f/2.8 Cr Series Fixed Focal Length Lens, Depth of Field Plot, 1000mm Working Distance, f2.8
#35-191, 50mm, f/2.8 Cr Series Fixed Focal Length Lens, Depth of Field Plot, 1000mm Working Distance, f2.8
Filter

Anti-Reflection (AR) Coatings

Anti-reflection (AR) coatings are applied to optical components to increase throughput and reduce hazards caused by back-reflections.

View Now

An Introduction to Optical Coatings

Optical coatings are used to influence the transmission, reflection, or polarization properties of an optical component.

View Now

Wavelength and f#

This demonstration exemplifies why wavelength and f/# can drastically affect the performance of imaging systems and should not be overlooked.

View Now

Working Distance and Focal Length Basics

Working distance and focal length are two of the most fundamental parameters of any imaging system. Learn more in this hands-on video demo.

View Now

Understanding Focal Length and Field of View

Learn how to understand focal length and field of view for imaging lenses through calculations, working distance, and examples at Edmund Optics.

View Now

Lens Performance Curves

Are you trying to measure the performance of your lens? Although this can be a difficult task, there are curves that can help. Read more at Edmund Optics.

View Now

Introduction to Modulation Transfer Function

Want to know more about the Modular Transfer Function? Learn about the components, understanding, importance, and characterization of MTF at Edmund Optics.

View Now

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.

View Now

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.

View Now

Ruggedized Imaging Lenses

Not all ruggedized imaging lenses feature the same type of ruggedization. Learn about the advantages and disadvantages of each type at Edmund Optics.

View Now

Ruggedized Imaging Lenses

Edmund Optics® manufactures several different types of ruggedized imaging lens assemblies.

View Now

Ruggedized Machine Vision Lenses for Harsh Environments

Edmund Optics imaging and machine vision lenses are robustly designed for use in harsh environments and are available in a number of options for the most demanding applications.

View Now

Ruggedization of Imaging Lenses

Have an application in a demanding environment? Learn about the different types of ruggedization: industrial, ingress protection, and stability at Edmund Optics.

View Now

Where can I find more information on the various types of Ruggedization?

I’m currently using a different Edmund Optics® imaging lens. Can you ruggedize my lens?

Are Zemax prescription files available for your standard ruggedized lenses?

Can ruggedization make lenses waterproof?

Ruggedization of Machine Vision Lenses

Harsh Environments Call For Athermalized Imaging Lenses

Vibration Rating

Top Trends of 2022 – TRENDING IN OPTICS: EPISODE 8

Happy holidays from Edmund Optics! Learn about the top trends in the photonics industry covered in our Trending in Optics Series in 2022.

View Now

Edmund Optics Imaging Lab 3.8: Sneak Peek at Future Modules

Learn how to specify imaging system components.

View Now

Best Practice #1 Bigger is Better

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.

View Now

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.

View Now

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.

View Now

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.

View Now

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.

View Now

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.

View Now

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.

View Now

The Impact of Distortion

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

View Now

Comparison of Optical Aberrations

Trying to understand optical aberrations? Check out how to identify aberrations and view examples at Edmund Optics.

View Now

Aberrational Balancing of MTF in Lens Design

Do you have multiple projects that involve the use of a lens? Find out about different lenses that can be adapted for multiple purposes at Edmund Optics.

View Now

Basic Lens Selection

Types of Machine Vision Lenses

Fixed focal length, zoom, and macro lenses are all variable magnification lenses. Learn more at Edmund Optics.

View Now

Lens Spacers, Shims, and Focal Length Extenders

Want to learn how to extend a lens beyond its limits in an application? Learn more about spacers, shims, and focal length extenders at Edmund Optics.

View Now

MTF Curves and Lens Performance

Explore the differences in the performance of imaging lenses by directly comparing the associated modulation transfer function (MTF) curves.

View Now

The Anatomy of a Lens

Become familiarized with the key components of an imaging lens assembly and how they function.

View Now

The Modulation Transfer Function (MTF)

MTF curves allow you to compare the performance of multiple lenses at the same time. To find out how MTF curves are beneficial, read more at Edmund Optics.

View Now

Basic Lens Selection

To decide what imaging lens is right for a system, it is important to know the parameters of the imaging system used. Learn more at Edmund Optics.

View Now

How to Choose a Fixed Magnification Lens

Fixed magnification lenses typically function properly at a single working distance and are specified by their magnification. Learn more at Edmund Optics.

View Now

Advanced Lens Selection

The modulation transfer function of a lens varies depending on working distance, sensor size, f/#, and wavelength. Learn more at Edmund Optics.

View Now

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?

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

What are M12 (S-Mount) lenses?

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

View Now

What is an MVO Double Gauss imaging lens?

What are fixed focal length lenses?

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

View Now

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

Edmund Optics designs and manufacturers many types of imaging lenses.

View Now

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.

View Now

Calculating Lens Resolution with Precision

Deciphering Lens Specifications and Choosing the Proper Lens

A Closer Look at Resolution Testing

Angular Field of View (AFOV)

Aperture (f/#)

Aperture Stop

Entrance Pupil

Exit Pupil

Field

Field Efficiency

Fixed Focal Length Lens

F-Mount

Image Circle

Line Pair (lp)

Vignetting

Working Distance (WD)

Working f/#

Zoom

Imaging System Parameter Calculator

Imaging Lens Selector

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

View Now

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.

View Now

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

View Now

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.

View Now

Imaging Innovation Summit Keynote

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

View Now

Edmund Optics Imaging Lab Module 1: Imaging Overview

Learn how to specify imaging system components.

View Now

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.

View Now

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

View Now

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.

View Now

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.

View Now

Sensors and Lenses

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

View Now

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.

View Now

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.

View Now

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.

View Now

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.

View Now

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.

View Now

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.

View Now

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.

View Now

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.

View Now

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.

View Now

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.

View Now

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.

View Now

What is the difference between Primary Magnification and System Magnification?

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

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

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

Lens Selection Guide, Part 2

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

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

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

Vision & Sensors Lens Selection Guide, Part 1

Back Flange Distance

Depth of Field (DOF)

Depth of Focus

Distortion

Distortion, Non-Monotonic

Field Curvature

Focal Length Extender

Horizontal Resolution

Hyperfocal Distance

Primary Magnification (PMAG)

Relative Illumination (RI)

S-Mount

Sliding Focusing Mechanism

T-Mount

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.

View Now

Axial and Lateral Chromatic Aberration

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

View Now

Edmund Optics Imaging Lab 1.1: Field of View

Learn how to specify imaging system components.

View Now

Edmund Optics Imaging Lab 1.2: Working Distance

Edmund Optics Imaging Lab 1.5: Sensor Size

Learn how to specify imaging system components.

View Now

Edmund Optics Imaging Lab 3.2: The W of Illumination Geometry

Learn how to specify imaging system components.

View Now

Edmund Optics Imaging Lab 3.3: Directional Illumination

Learn how to specify imaging system components.

View Now

Edmund Optics Imaging Lab 3.4: Directional Illumination of Ring Lights

Learn how to specify imaging system components.

View Now

Edmund Optics Imaging Lab 3.5: Backlights

Learn how to specify imaging system components.

View Now

Edmund Optics Imaging Lab 3.6: Dome Lights

Learn how to specify imaging system components.

View Now

Edmund Optics Imaging Lab 3.7: Line Lights

Learn how to specify imaging system components.

View Now

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.

View Now

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.

View Now

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.

View Now

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.

View Now

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.

View Now

Aberrations

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

View Now

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.

View Now

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.

View Now

What is SWIR?

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

View Now

Resolution and MTF Testing

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.

View Now

Edmund Optics Imaging Lab 1.4: Depth of Field

Learn how to specify imaging system components.

View Now

Edmund Optics Imaging Lab 1.7: Contrast In Depth

Learn how to specify imaging system components.

View Now

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

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

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.

View Now

Contrast

Spatial Frequency

Edmund Optics Imaging Lab 1.3: Resolution

Learn how to specify imaging system components.

View Now

Edmund Optics Imaging Lab 1.6: Resolution In Depth

Learn how to specify imaging system components.

View Now

Edmund Optics Imaging Lab 1.8: Depth of Field in Depth

Learn how to specify imaging system components.

View Now

Edmund Optics Imaging Lab Module 2: Gauging and Measurement Accuracy Overview

Learn how to specify imaging system components.

View Now

Edmund Optics Imaging Lab 2.1: Distortion

Learn how to specify imaging system components.

View Now

Edmund Optics Imaging Lab 2.2: Telecentricity

Learn how to specify imaging system components.

View Now

Edmund Optics Imaging Lab Module 3: Illumination Overview

Learn how to specify imaging system components.

View Now

Edmund Optics Imaging Lab Module 3.1: Introduction to Illumination Concepts

Learn how to specify imaging system components.

View Now

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.

View Now

Diffraction Limit

Modulation Transfer Function (MTF)

Nyquist Limit

Parfocality

Resolution

Resolving Power

2011 Telecentric Bell Choir

The Future Depends on Optics®

View Now

How I do select the correct testing target for my electronic imaging system (camera & lens)?

C-Mount

Field of View (FOV)

Magnification

Numerical Aperture (NA)

Edmund Optics Imaging Comparison: Why Optics Matter

The success of your machine vision application depends on the quality of your optical components.

View Now

What is an "in-line" video system?

Edmund Optics Global Manufacturing Facilities

Edmund Optics® (EO) manufactures millions of precision optical components and subassemblies every year in our 5 global manufacturing facilities.

View Now

Metrology at Edmund Optics: Measuring as a Key Component of Manufacturing

Learn about the metrology that Edmund Optics® uses to guarantee the quality of all optical components and assemblies.

View Now

Refraction

 
Sales & Expert Advice
 
or view regional numbers
Easy-to-Use
QUOTE TOOL
enter stock numbers to begin