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Edmund Optics Microscope Objectives

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Exploring Microscope Objectives

Optics play a crucial role in both cameras and microscopes, serving as the primary components that focus and magnify light to create clear and detailed images. Despite their shared fundamental principles, the objectives and lenses in these devices are tailored to meet distinct requirements based on their specific applications. This article delves into the objectives and lenses used in cameras and microscopes, highlighting their objectives, design, and functionalities.

Microscope objectives aim to magnify tiny specimens while maintaining high resolution and clarity. These lenses are crucial in scientific research and medical diagnostics, where observing fine details is essential.

Types of

Microscope Objectives

120i Plan APO Infinity Corrected Objectives & Systems
TECHSPEC® UCf – Ultra-Compact Finite Conjugate Objectives
TECHSPEC® Cf – Compact Finite Conjugate Objectives
TECHSPEC® ReflX™ Reflectif Objectives
TECHSPEC® High Performance ReflX™
TECHSPEC® Liquid Lens CF Objectives

120i Plan APO Infinity Corrected Objective & Systems

Edmund Optics® 120i Plan APO Infinity Corrected Objectives are compact, infinite conjugate microscope objectives designed to deliver exceptional image flatness and chromatic correction across the 400–700 nm wavelength range. Optimized for 1.1” sensors, they provide a large field of view and consistent image quality suitable for high-throughput imaging systems. These objectives are up to 43% smaller than industry standard systems, making them ideal for space-constrained applications.

These objectives won the 2023 Bronze Vision Systems Design (VSD) Innovators Award, highlighting their performance and innovation.

Up to 43% smaller than traditional infinity corrected objectives
Optimized for use with 1.1” sensors to maximize field of view
Superior image flatness and chromatic correction (Plan APO) over visible spectrum
Applications: life science microscopy, flow cytometry, pharmaceutical inspection, and industrial assembly line or fault detection

The objectives can be used in various configured setups, including the 120i Plan APO objective, C-mount camera tube, and compact tube lens assembly. Optimized for up to 1.1” sensors, the system offers a large field of view and high image quality while reducing size and weight. It provides excellent image flatness and color correction from 400–700 nm.

TECHSPEC® UCf – Ultra-Compact Finite Conjugate Objectives

TECHSPEC® UCf Objective Series are compact finite conjugate objectives designed to deliver near diffraction-limited performance. Unlike infinity-corrected objectives, they do not require a secondary tube lens, simplifying system design. These objectives mount directly to C-mount cameras, eliminating the need for extension tubes.

Compact finite conjugate design for simplified imaging systems
Near diffraction-limited optical performance
Available magnifications: 2X, 4X, 5X, 10X, 15X, and 20X
Applications: direct mounting on C-mount cameras for microscopy and machine vision tasks

TECHSPEC® Cf – Compact Finite Conjugate Objectives

ZEISS EC Epiplan Plan Achromat Infinity Corrected Objectives are precision plan achromatic objectives designed for brightfield, fluorescence, and differential interference contrast (DIC) applications in material and reflected light microscopy. They deliver excellent color correction and exceptional flatness of field, ensuring sharp, high-contrast images across the entire viewing area.

Excellent Color Correction and Flatness of Field, ensuring faithful color reproduction and sharpness across the entire field of view.
Oil Immersion Options Available, allowing for increased numerical aperture and resolution when needed for detailed cellular imaging.
Large Field Number (23mm), enabling fast and efficient screening of samples, which is ideal for high-throughput laboratory environments.
Applications: Ideal for Brightfield and Fluorescence Applications, providing clear, accurate images of fixed and stained tissues or cells.

TECHSPEC® ReflX™ Reflectif Objectives

TECHSPEC® High Performance ReflX™ Objectives build on the standard ReflX™ design, offering a λ/4 peak-to-valley transmitted wavefront and a streamlined tapered mechanical design for use at angles of incidence up to 45°. Achieving such high optical accuracy requires precision manufacturing, with mirror surfaces polished to better than λ/20 peak-to-valley. The tapered design provides over 6 mm clearance from the object plane, and curved spider legs reduce diffraction effects for improved image quality.

Diffraction limited performance with transmitted wavefront of λ/14 RMS
Tapered design allows operation at 45° angle of incidence
Curved spider legs minimize diffraction in the image plane
Applications: high-resolution imaging in UV to IR ranges, including spectroscopy, photolithography, and semiconductor inspection

TECHSPEC® High Performance ReflX™

Excellent Color Correction and Flatness of Field, ensuring faithful color reproduction and sharpness across the entire field of view.
Oil Immersion Options Available, allowing for increased numerical aperture and resolution when needed for detailed cellular imaging.
Large Field Number (23mm), enabling fast and efficient screening of samples, which is ideal for high-throughput laboratory environments.
Applications: Ideal for Brightfield and Fluorescence Applications, providing clear, accurate images of fixed and stained tissues or cells.

TECHSPEC® Liquid Lens CF Objectives

TECHSPEC® Liquid Lens CF Objectives are advanced optical objectives designed with an integrated liquid lens and a compact, reduced-size form factor while maintaining high optical performance.

Integrated Liquid Lens for Focus Tuning: The liquid lens is built into the objective and allows for focus adjustment by electronically changing the lens shape through an applied current. This enables rapid and precise tuning of the working distance without mechanical movement.
Compact and Lightweight Design, a reduced size compared to traditional systems, allowing for shorter system lengths while maintaining optical quality.
Optimized for Long Working Distances, typically between 19 to 31 mm, ideal for applications requiring flexibility in object distance.
No Need for Tube Lenses: Unlike traditional objective systems that need tube lenses and longer tube lengths, these optimized objectives integrate everything to reduce system complexity and length.
Applications: Suitable for biomedical applications such as microscopy, flow cytometry, pharmaceutical inspection, and industrial uses like assembly line and fault inspection.

SEARCH:

Choose a specific value to narrow down the table.
The match must be exact
For example: “UV”, “HR”, “100X”, “APO”

Model	Style	Magnification	Numerical Aperture NA:	FL	Working Distance (mm):	Coating / Wawelength (nm)	Specification
High Performance ReflX™ Reflective #59-884	Infinity Corrected	15X	0.28	13.3	23.75	DUV Enhanced Aluminum (150-11000nm)	Specification
High Performance ReflX™ Reflective #59-885	Finite Conjugate	15X	0.28	12.97	23.75	DUV Enhanced Aluminum (150-11000nm)	Specification
High Performance ReflX™ Reflective #59-886	Infinity Corrected	15X	0.28	13.3	23.75	Enhanced Aluminum (200-11000nm)	Specification
High Performance ReflX™ Reflective #59-887	Finite Conjugate	15X	0.28	12.97	23.75	Enhanced Aluminum (200-11000nm)	Specification
High Performance ReflX™ Reflective #59-888	Infinity Corrected	15X	0.28	13.3	23.75	Protected Gold (700-11000nm)	Specification
High Performance ReflX™ Reflective #59-889	Finite Conjugate	15X	0.28	12.97	23.75	Protected Gold (700-11000nm)	Specification
ReflX™ Reflective #89-722	Infinity Corrected	10X	0.22	19.30	30.56	DUV Enhanced Aluminum (150-11000nm)	Specification
ReflX™ Reflective #89-723	Finite Conjugate	10X	0.23	18.40	30.56	DUV Enhanced Aluminum (150-11000nm)	Specification
ReflX™ Reflective #89-724	Infinity Corrected	10X	0.22	19.30	30.56	Enhanced Aluminum (200-11000nm)	Specification
ReflX™ Reflective #89-725	Finite Conjugate	10X	0.23	18.40	30.56	Enhanced Aluminum (200-11000nm)	Specification
ReflX™ Reflective #13-408	Infinity Corrected	10X	0.22	19.30	30.56	Ultrafast-Enhanced Silver	Specification
ReflX™ Reflective #13-409	Finite Conjugate	10X	0.23	18.40	30.56	Ultrafast-Enhanced Silver	Specification
ReflX™ Reflective #89-726	Infinity Corrected	10X	0.22	19.30	30.56	Protected Gold (700-11000nm)	Specification
ReflX™ Reflective #89-727	Finite Conjugate	10X	0.23	18.40	30.56	Protected Gold (700-11000nm)	Specification
ReflX™ Reflective #59-315	Infinity Corrected	15X	0.28	13.30	23.75	DUV Enhanced Aluminum (150-11000nm)	Specification
ReflX™ Reflective #59-316	Finite Conjugate	15X	0.28	13.30	23.75	DUV Enhanced Aluminum (150-11000nm)	Specification
ReflX™ Reflective #58-417	Infinity Corrected	15X	0.28	13.30	23.75	Enhanced Aluminum (200-11000nm)	Specification
ReflX™ Reflective #58-421	Finite Conjugate	15X	0.28	13.30	23.75	Enhanced Aluminum (200-11000nm)	Specification
ReflX™ Reflective #13-410	Infinity Corrected	15X	0.28	13.30	23.75	Ultrafast-Enhanced Silver	Specification
ReflX™ Reflective #13-411	Finite Conjugate	15X	0.28	13.30	23.75	Ultrafast-Enhanced Silver	Specification
ReflX™ Reflective #58-418	Infinity Corrected	15X	0.28	13.30	23.75	Protected Gold (700-11000nm)	Specification
ReflX™ Reflective #58-422	Finite Conjugate	15X	0.28	13.30	23.75	Protected Gold (700-11000nm)	Specification
ReflX™ Reflective #39-141	Infinity Corrected	20X	0.33	10.06	18.88	DUV Enhanced Aluminum (150-11000nm)	Specification
ReflX™ Reflective #39-145	Finite Conjugate	20X	0.33	9.91	18.88	DUV Enhanced Aluminum (150-11000nm)	Specification
ReflX™ Reflective #39-142	Infinity Corrected	20X	0.33	10.06	18.88	Enhanced Aluminum (200-11000nm)	Specification
ReflX™ Reflective #39-146	Finite Conjugate	20X	0.33	9.91	18.88	Enhanced Aluminum (200-11000nm)	Specification
ReflX™ Reflective #13-413	Finite Conjugate	20X	0.33	10.06	18.88	Ultrafast-Enhanced Silver	Specification
ReflX™ Reflective #13-412	Infinity Corrected	20X	0.33	9.91	18.88	Ultrafast-Enhanced Silver	Specification
ReflX™ Reflective #39-143	Infinity Corrected	20X	0.33	10.06	18.88	Protected Gold (700-11000nm)	Specification
ReflX™ Reflective #39-147	Finite Conjugate	20X	0.33	9.91	18.88	Protected Gold (700-11000nm)	Specification
120i Plan APO #15-940 New	Infinity Corrected	2.5X	0.1	72.00	22.88	370 - 700	Specification
120i Plan APO #15-941 Kit #71-032	Infinity Corrected	5X	0.14	24.00	13.5	400 - 700	Specification Kit Specification
120i Plan APO #15-943 Kit #71-033	Infinity Corrected	10X	0.28	12.00	14.7	400 - 700	Specification Kit Specification
120i Plan APO #15-944 Kit #71-034	Infinity Corrected	20X	0.42	6.00	5.7	400 - 700	Specification Kit Specification
UCf Fluorite #36-278	Finite Conjugate	2X	0.15		11.3	400 - 700	Specification
UCf Fluorite #36-280	Finite Conjugate	2X	0.13		9.9	400 - 700	Specification
UCf Fluorite #26-686	Finite Conjugate	4X	0.17		9.3	400 - 700	Specification
UCf Fluorite #26-687	Finite Conjugate	5X	0.17		8.9	400 - 700	Specification
UCf Fluorite #26-688	Finite Conjugate	10X	0.18		8.1	400 - 700	Specification
UCf Fluorite #26-689	Finite Conjugate	15X	0.19		7.8	400 - 700	Specification
UCf Fluorite #26-690	Finite Conjugate	20X	0.19		7.7	400 - 700	Specification
Cf Fluorite #88-352	Finite Conjugate	2X	0.120		31.3	425 - 675nm BBAR	Specification
Cf Fluorite #88-353	Finite Conjugate	5X	0.150		16.2	425 - 675nm BBAR	Specification
Cf Fluorite #88-354	Finite Conjugate	10X	0.170		13.5	425 - 675nm BBAR	Specification