CUBIC PRECISION 71-3015 Mic Arc Sec Coincidence Level 71-1111 Opt. Mic.

( Brand: Cubic Precision ), ( Manufacturer Part Number: 71-3015 ), ( Country Of Origin: United States )

Review CUBIC PRECISION Opt. Mic. And Arc Sec Coincidence Level

The **Precision 71-3015 71-1111 Optical Micrometer Arc Second Coincidence Level** is a high-precision optical instrument meticulously engineered for astronomical and geodetic applications where sub-arc-second accuracy is paramount. Designed for use in conjunction with theodolites, astrolabes, or other advanced surveying equipment, this device represents the pinnacle of optical engineering, combining unparalleled clarity with exceptional repeatability. Its core functionality revolves around the **coincidence principle**, where a finely calibrated reticle and a precisely aligned optical system allow operators to achieve measurements with an extraordinary level of precision down to fractions of an arc second (0.1" or better). The **71-3015** serves as the primary optical micrometer, featuring a **high-contrast, finely etched reticle** with micrometer scales etched directly onto the glass, ensuring minimal parallax and maximum readability even under challenging lighting conditions. The **71-1111** acts as the complementary coincidence level, providing a stable reference plane with a **precision ground glass surface** that minimizes tilt errors, thereby enhancing the overall accuracy of angular measurements. Together, these components form a robust system capable of resolving minute angular deviations, making them indispensable for tasks such as **astrometric observations, high-precision geodetic surveys, and celestial navigation**. The instrument s construction incorporates **optically flat glass elements** and **durable, low-expansion materials** to maintain stability across varying environmental conditions, while its **adjustable focus and illumination system** ensures optimal visibility of the reticle regardless of ambient light. Whether deployed in field surveys, astronomical research, or critical infrastructure alignment, this optical micrometer system delivers unmatched reliability and precision, setting a benchmark for professionals demanding the highest standards in angular measurement technology.

### **Precision 71-3015 (71-1111 Opt Mic Arc Sec Coincidence Level) Pros and Cons**

1. **High Precision and Accuracy** The device is designed for precise measurements, particularly in optical and angular applications. The "arc sec" (arc-second) resolution suggests it is capable of extremely fine adjustments, which is valuable in fields like astronomy, optics, and precision engineering.

2. **Coincidence Level Functionality** The "coincidence level" feature allows for synchronized or correlated measurements, which can be useful in experiments requiring precise timing or alignment of multiple instruments.

3. **Compatibility with Optical Systems** The inclusion of "Opt Mic" (optical micrometer or microscope) suggests it integrates well with optical setups, making it suitable for tasks like collimation, alignment, or fine-tuning of optical components.

4. **Durability and Build Quality** Precision instruments from reputable manufacturers (assuming this is from a trusted brand like Zeiss, Leica, or similar) are typically built to last, with robust construction for long-term use.

- **Optical metrology** (e.g., laser alignment, interferometry)

- **Precision machining** (e.g., CNC alignment)

- **Scientific research** (e.g., telescope collimation, lab instrumentation)

6. **Potential for Resale Value** High-quality precision instruments retain value over time, especially if well-maintained.

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1. **High Cost** Precision instruments with arc-second resolution are expensive. The exact price isn t provided, but such devices typically range from several thousand to tens of thousands of dollars, depending on brand and additional features.

2. **Maintenance Requirements** Optical and mechanical precision instruments require regular calibration, cleaning, and maintenance to ensure accuracy. Improper handling can lead to misalignment or damage.

3. **Complexity of Use** Operating such a device may require specialized training, especially if it involves advanced features like coincidence level adjustments. Users may need to consult manuals or seek expert guidance.

4. **Limited Portability** Due to its precision components, the device may be bulky or heavy, making it less suitable for fieldwork or mobile applications.

5. **Depreciation Over Time** While high-quality, precision instruments may not appreciate in value, and newer models with improved technology could render older versions obsolete.

6. **Potential for Damage** Optical surfaces (mirrors, lenses) and delicate mechanisms are susceptible to scratches, dust, or misalignment, which could compromise performance.

7. **Compatibility Issues** If the device is not universally compatible with modern systems (e.g., digital interfaces, software updates), it may require additional adapters or workarounds.

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The **Precision 71-3015 (71-1111 Opt Mic Arc Sec Coincidence Level)** is a **high-end, specialized tool** ideal for professionals in optics, astronomy, or precision engineering who require **sub-arc-second accuracy and coincidence-level synchronization**. Its strengths lie in **unmatched precision, versatility in optical applications, and durability**, but these advantages come at a **significant cost and operational complexity**.

This device is **not a necessary purchase** for hobbyists, casual users, or those without a clear, high-precision application. However, for **serious researchers, astronomers, or industrial metrologists**, it represents a **valuable investment** if the budget and expertise are available.

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- You work in a field (e.g., astronomy, optical engineering, precision machining) where arc-second precision is critical.

- You have the budget to acquire and maintain such an instrument.

- You can justify the cost through long-term use or research applications.

- You are willing to invest time in learning its operation and maintenance.

- You only need basic alignment or measurements (lower-cost alternatives like digital angle finders or theodolites may suffice).

- You lack the expertise to operate or maintain the device properly.

- The application does not require sub-arc-second accuracy.

- You are on a tight budget and cannot justify the expense.

- If the full precision of this device is unnecessary, explore **mid-range optical microscopes, digital angle finders, or laser collimators** as more affordable alternatives.

- If purchasing new is prohibitive, consider **used/refurbished models** from reputable vendors, though ensure they come with proper calibration and maintenance records.

- Check for **rental or loan options** if you need the device for a short-term project.

Details:

Optics: Fully coated throughout. With the item. And right, paired lines bottom and left. Originally, it was part of an accessorized kit no.

Optical system: Fully erecting, achromatic. It is identical to the 71-3010. Section where an Auto-Collation Conversion unit not included can be installed. The following are included, 1 each: Paragon Tilting Level, tagged as model 71-3015, serial no.

D entails and technical specs appear below. IMPORTANT CLARIFICATION: This instrument was issued by Cubic Precision with a model / serial number tag designating it as 71-3015 413830. QUESTIONS: Please send your questions before purchasing. We'll reply as quickly possible.

Article: All purpose, double glass, rustproof; cross pattern with single lines top. Eyepiece: Erecting, achromatic; a removable blank is provided at the eyepiece. AMSL ID #400-57, This excellent Cubic Precision / K E 71-3015 Paragon Precision tilting level is offered here with the transport case.

specifications totalstationsurveyzo:

• brand: Cubic Precision
• mpn: 71-3015
• country of origin: United States

shipping totalstationsurveyzo:

• carrier: FedEx
• service: FedEx Ground / FedEx Home Delivery
• class: Standard
• cost: $48.24
• transit: 4-9 Days
• type: Calculated

seller totalstationsurveyzo:

• city: Westminster, Vermont
• # reviews: 4276
• rating: 100.0%

general totalstationsurveyzo:

• Test, Measurement Inspection > Levels Surveying Equipment > Total Stations Accessories
• condition: Used

offer totalstationsurveyzo:

• started: March 26, 2026
• quantity: 1
• availability: In Stock
• sold: 0
• options: Ship-to-home

returns totalstationsurveyzo:

• method: Money back
• paid by: Buyer
• time: 30 Days
• policy: Returns Accepted

payments totalstationsurveyzo:

• wallet: Paypal
• other
• credit card: Mastercard

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