Edmund Optics® 120i Plan APO Infinity Corrected Objectives

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Magnification	NA	FL (mm)	WD (mm)	Stock Number	Price	Buy

5X 5X	0.14 0.14	24.00 24.00	13.5 13.5	#15-941	720,00 €720,00 Request Quote	Contact Us ×
10X 10X	0.28 0.28	12.00 12.00	14.7 14.7	#15-943	855,00 €855,00 Request Quote	3-4 days ×
20X 20X	0.42 0.42	6.00 6.00	5.7 5.7	#15-944	1.890,00 €1.890,00 Request Quote	Contact Us ×

Title	Stock Number	Price	Buy

Camera Tube	#18-504	100,00 €100,00 Request Quote	3-4 days ×
Tube Lens	#18-505	520,00 €520,00 Qty 5+ €494,00 Request Quote	3-4 days ×
Tube Lens Spacer Assembly	#18-506	100,00 €100,00 Qty 5+ €95,00 Request Quote	3-4 days ×
M29 to Ø30mm Dovetail Adapter Assembly	#18-507	48,00 €48,00 Qty 5+ €46,00 Request Quote	3-4 days ×
Filter Cube Assembly	#18-508	368,00 €368,00 Qty 5+ €350,00 Request Quote	3-4 days ×
0.312" Fiber Adapter Assembly	#18-509	48,00 €48,00 Qty 5+ €46,00 Request Quote	3-4 days ×
M29 Tube Mount Assembly	#18-510	48,00 €48,00 Qty 5+ €46,00 Request Quote	Contact Us ×
C-Thread to Dovetail Adapter	#18-511	48,00 €48,00 Qty 5+ €46,00 Request Quote	3-4 days ×
5X, 95mm M26 Parfocal Adapter	#24-218	40,00 €40,00 Request Quote	3-4 days ×
10X, 95mm M26 Parfocal Adapter	#24-219	40,00 €40,00 Request Quote	3-4 days ×
20X, 95mm M26 Parfocal Adapter	#24-220	40,00 €40,00 Request Quote	3-4 days ×
5X, 95mm, C-Mount Parfocal Adapter	#23-901	40,00 €40,00 Request Quote	3-4 days ×
10X, 95mm, C-Mount Parfocal Adapter	#23-902	40,00 €40,00 Request Quote	3-4 days ×
20X, 95mm, C-Mount Parfocal Adapter	#23-903	40,00 €40,00 Request Quote	3-4 days ×
Compact Tube Lens Assembly	#28-781 New New Launched on our website before appearing in our latest print catalogs. Be the first to buy before anyone else!	520,00 €520,00 Request Quote	3-4 days ×
10X Focusing Lens	#28-779 New New Launched on our website before appearing in our latest print catalogs. Be the first to buy before anyone else!	395,00 €395,00 Request Quote	3-4 days ×
20X Focusing Lens	#28-780 New New Launched on our website before appearing in our latest print catalogs. Be the first to buy before anyone else!	395,00 €395,00 Request Quote	3-4 days ×

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Understanding Microscopes and Objectives

Learn about the different components used to build a microscope, key concepts, and specifications at Edmund Optics.

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Multiphoton Microscopy

Multiphoton microscopy is ideal for capturing high-resolution 3D images with reduced photobleaching and phototoxicity compared to confocal microscopy.

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Confocal Microscopy

Confocal microscopy provides high resolution, elimination of out-of-focus glare due to spatial filtering, and reduction of light-induced damage to the sample.

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Infinite Conjugate Tube Length

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Understanding Infinity Corrected Objective Resolving Power and Magnification

Microscopes are used in a variety of fields and applications. To understand how resolving power, magnification, and other aspects work, read more at Edmund Optics.

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Using Tube Lenses with Infinity Corrected Objectives

Want to use an infinity corrected objective to make an image? You will need a tube lens to do it! Find out why and how it works at Edmund Optics.

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What is an "in-line" microscope?

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What is an infinity-corrected objective?

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Can I use an infinity-corrected objective in my microscope to get a longer working distance?

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What is "DIN" and "JIS"? What is the difference between them?

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I’m using the MT-1 Accessory Tube Lens and MT-1/MT-2 C-Mount Adapter. Two thin brass rings came with the adapter. How are they used?

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What is the significance of the field number of an objective and what is it dependent on?

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Plan Objective

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Semi-Plan Objective

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Tube Lens

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The Future of Microscope Objectives

Advances in Microscopy Tackle the Challenges of the Future

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Optical Microscopy Application: Brightfield Illumination

Looking to use a simple technique for optical microscopy? Check out this article on brightfield illumination to find out more at Edmund Optics.

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Optical Microscopy Application: Darkfield Illumination

Darkfield illumination is the opposite of brightfield illumination. Find out how darkfield differs from brightfield in optical microscopy at Edmund Optics.

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Optical Microscopy Application: Phase Contrast

Think you know all the advantages for using phase contrast in optical microscopy? Advantages, image appearance, and technical details can be found at Edmund Optics.

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What is the difference between Achromatic, Semi-Plan and Plan objectives?

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You have a variety of Mitutoyo Tube Lenses (MT-4, MT-1, and MT-2). How can you connect them to a Mitutoyo objective and C-mount camera?

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I have an MT-L Accessory Tube Lens but I am unsure about mounting it to my objective and C-Mount camera. Can you explain how it works?

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Achromatic Objective

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Apochromatic

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Confocal Microscopy

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DIN (Deutsche Industrie Norm)

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Periplan Eyepiece

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Optical Cage System Application: Digital Video Microscope

Are you looking to simplify the assembly of a digital video microscope? Find out how a TECHSPEC Optical Cage System allows for quick build at Edmund Optics.

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Optical Microscopy Application: Differential Interference Contrast

Differential interference contrast (DIC) is one of the polarization techniques that can be used in optical microscopy. Learn about this technique at Edmund Optics.

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Field Number

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Light Sheet Microscopy

Light sheet fluorescence microscopy uses a 2D laser sheet to illuminate a thin slice of the sample and excite fluorescence, reducing phototoxicity and damage.

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Optical Cage System Application: Differential Interference Contrast (DIC) Digital Microscope

Differential interference microscopy enhances the contrast of object features that are otherwise difficult to observe using brightfield microscopy.

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Darkfield Illumination

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Diffraction Limit

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Parfocality

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Digital Video Microscope Objective Setups

Digital video microscopes use a camera to capture and record images. Read more about the components needed to assemble a video microscope at Edmund Optics.

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Optical Microscopy Application: Fluorescence

Wondering how fluorescence microscopy works? Find out about the technique, systems, and more at Edmund Optics.

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Brightfield Illumination

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Field of View (FOV)

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Magnification

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Numerical Aperture (NA)

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Fluorescence Microscopy: In-Line Illumination with Imaging Filters

Want to know about fluorescence microscopy? Read this article by a Biomedical Product Line Engineer at Edmund Optics to learn more.

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Refraction

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Edmund Optics® 120i Plan APO Infinity Corrected Objectives

Can't find what you need?

Common Specifications

Products

Technical Information

Accessories

Related Products

Resources

Understanding Microscopes and Objectives

Multiphoton Microscopy

Confocal Microscopy

Infinite Conjugate Tube Length

Understanding Infinity Corrected Objective Resolving Power and Magnification

Using Tube Lenses with Infinity Corrected Objectives

What is an "in-line" microscope?

What is an infinity-corrected objective?

Can I use an infinity-corrected objective in my microscope to get a longer working distance?

What is "DIN" and "JIS"? What is the difference between them?

I’m using the MT-1 Accessory Tube Lens and MT-1/MT-2 C-Mount Adapter. Two thin brass rings came with the adapter. How are they used?

What is the significance of the field number of an objective and what is it dependent on?

Plan Objective

Semi-Plan Objective

Tube Lens

The Future of Microscope Objectives

Optical Microscopy Application: Brightfield Illumination

Optical Microscopy Application: Darkfield Illumination

Optical Microscopy Application: Phase Contrast

What is the difference between Achromatic, Semi-Plan and Plan objectives?

You have a variety of Mitutoyo Tube Lenses (MT-4, MT-1, and MT-2). How can you connect them to a Mitutoyo objective and C-mount camera?

I have an MT-L Accessory Tube Lens but I am unsure about mounting it to my objective and C-Mount camera. Can you explain how it works?

Achromatic Objective

Apochromatic

Confocal Microscopy

DIN (Deutsche Industrie Norm)

Periplan Eyepiece

Optical Cage System Application: Digital Video Microscope

Optical Microscopy Application: Differential Interference Contrast

Field Number

Light Sheet Microscopy

Optical Cage System Application: Differential Interference Contrast (DIC) Digital Microscope

Darkfield Illumination

Diffraction Limit

Parfocality

Digital Video Microscope Objective Setups

Optical Microscopy Application: Fluorescence

Brightfield Illumination

Field of View (FOV)

Magnification

Numerical Aperture (NA)

Fluorescence Microscopy: In-Line Illumination with Imaging Filters

Refraction