LEICA 506080 Plan 40X/0.65 /0.17

( Brand: Leica ), ( Manufacturer Part Number: 506080 )

Review LEICA 40x/0.65 /0.17 Ph Plan

The Leica DM506080 40x/0.65/0.17 Plan objective lens is a precision-engineered optical component designed for high-resolution imaging in scientific and industrial microscopy applications. Part of Leica Microsystems renowned line of Plan-Apochromat objectives, this lens delivers exceptional clarity, contrast, and flat-field performance, making it ideal for tasks requiring meticulous detail and accuracy. With a nominal magnification of 40x, the objective offers a balanced compromise between high magnification and a sufficiently wide field of view, allowing users to observe fine structural details while maintaining a manageable working distance of 0.17 millimeters. The numerical aperture (NA) of 0.65 ensures robust light-gathering capability, enhancing image brightness and depth of field, which is particularly advantageous for examining semi-transparent or lightly stained specimens. The Plan design eliminates optical aberrations such as curvature of field and distortion, resulting in a uniformly sharp image across the entire field of view a critical feature for quantitative analysis, photomicrography, and fluorescence imaging. Constructed with high-quality glass elements and coated to minimize reflections and maximize light transmission, this objective is optimized for use with both brightfield and phase-contrast illumination techniques. Its robust mechanical construction and compatibility with Leica s advanced microscope systems make it a versatile tool for researchers, biologists, materials scientists, and quality control specialists who demand uncompromising optical performance. Whether used in cell biology, histology, or materials characterization, the Leica DM506080 40x/0.65/0.17 Plan objective exemplifies Leica s commitment to precision, durability, and cutting-edge optical engineering.

### **Pros and Cons of the Leica DM5000 M (506080) 40x/0.65 Plan Objective**

#### **Pros**

1. **High-Quality Optical Performance**

The 40x/0.65 plan objective is designed for brightfield microscopy, offering sharp, distortion-free images with excellent resolution. The 0.65 numerical aperture (NA) provides a good balance between magnification and working distance, making it suitable for detailed cellular and tissue examination.

2. **Wide Working Distance (0.17 mm)**

The relatively long working distance (0.17 mm) allows for easier sample preparation and manipulation, reducing the risk of damaging delicate specimens. This is particularly useful for live-cell imaging or when working with thick samples.

3. **Compatibility with Leica Microscopes**

This objective is engineered for Leica s DM5000 M series and other compatible microscopes, ensuring optimal alignment, parfocality, and image quality. Leica s optics are known for precision and durability, reducing long-term maintenance concerns.

4. **Durable Construction**

Leica objectives are built to last, with robust mechanical and optical components that minimize drift and maintain focus stability over time. The metal housing and high-quality glass elements contribute to longevity.

5. **Brightfield and Phase-Contrast Versatility**

While primarily a brightfield objective, the 40x/0.65 can also be used effectively with phase-contrast or differential interference contrast (DIC) setups on compatible microscopes, expanding its utility for different imaging techniques.

6. **Minimal Chromatic Aberration**

Leica s optical design minimizes color fringing and aberrations, ensuring clearer and more accurate observations, especially at higher magnifications.

7. **Standardized Mounting**

The objective follows the standard 23.2 mm thread mount, making it easy to integrate into existing setups without compatibility issues.

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#### **Cons**

1. **High Cost**

Leica objectives are premium-priced, and the 40x/0.65 plan objective is no exception. For researchers or students on a tight budget, this may represent a significant investment, especially if multiple objectives are needed.

2. **Limited Working Distance for Some Applications**

While the 0.17 mm working distance is adequate for many brightfield applications, it may be too short for certain techniques (e.g., fluorescence with thick coverslips or immersion objectives). Users working with non-standard samples may need additional adapters or objectives.

3. **Specialized Maintenance Requirements**

High-end objectives require careful handling to avoid scratches or misalignment. Dust, oil, or improper cleaning can degrade performance over time, necessitating proper storage and maintenance protocols.

4. **Potential Overkill for Basic Use**

If the microscope is primarily used for low-to-medium magnification tasks (e.g., 10x or 20x), the 40x objective may not be frequently utilized, making its purchase less cost-effective. Investing in a lower-magnification objective (e.g., 20x) might be more practical for general use.

5. **Compatibility Limitations**

While compatible with Leica microscopes, it may not work seamlessly with non-Leica systems without additional adapters or modifications. Users switching brands should verify compatibility before purchase.

6. **No Built-in Correction Collars**

Unlike some objectives, this Leica plan objective does not include correction collars for adjusting focus across different cover glass thicknesses. Users must ensure consistent cover slip thickness (typically 1.5 mm for brightfield) to avoid spherical aberrations.

7. **Resale Value Depreciation**

Like most high-end optics, Leica objectives depreciate in value over time. If future upgrades are planned, the resale value may not justify the initial cost.

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### **Conclusion**

The **Leica 40x/0.65 Plan Objective (506080)** is an excellent choice for users who require high-resolution brightfield imaging with a balance of magnification and working distance. Its superior optical quality, durability, and compatibility with Leica systems make it ideal for research, medical diagnostics, or advanced teaching labs where precision is critical. However, the high cost and potential over-specification for basic applications may deter casual users or those with limited budgets.

For **researchers or professionals** working with demanding samples (e.g., cell cultures, histology slides) where image clarity and reliability are non-negotiable, this objective is a strong investment. For **students, hobbyists, or those needing a versatile but cost-effective setup**, a lower-cost alternative (e.g., a 40x objective from Zeiss, Nikon, or Olympus) might suffice without sacrificing too much performance.

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### **Recommendation**

- You are part of a research lab or clinical setting where Leica compatibility and optical excellence are essential.

- Your workflow frequently requires 40x magnification for detailed brightfield imaging.

- You prioritize long-term durability and minimal maintenance.

- Budget constraints allow for a premium investment in optics.

- You need a broader range of magnifications (e.g., 10x 100x) and prefer a more cost-effective package.

- Your microscope is not Leica, and compatibility is a concern.

- You primarily work with fluorescence or other advanced techniques where immersion objectives (e.g., 60x/1.4) might be more useful.

- You are on a tight budget and can achieve similar results with a mid-range objective from another manufacturer.

**Final Verdict:** The Leica 40x/0.65 Plan is a **top-tier objective** for its intended use, but its value depends heavily on the user s specific needs and budget. For those who can justify the cost, it delivers unmatched performance. For others, evaluating alternatives may lead to a more balanced decision.

Details:

LEICA 40x/0.65 /0.17 PH 2 C Plan 506080.

part #: 506080 prices

• $44.85-$199.95

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• brand: Leica
• mpn: 506080

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• city: Peoria, Arizona
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• Medical/Lab Equipment Attachments Accessories > Microscope Parts Accessories > Other Microscope Parts Accessories
• condition: Used

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• policy: No Returns

offer microscopepartzo:

• started: February 5, 2026
• sold: 0
• options: Ship-to-home
• availability: In Stock
• quantity: 1

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