BRUNSON OT202257 Sentinel Optical Tooling Collimator 271

( Brand: Brunson ), ( Manufacturer Part Number: OT202257 )

Review BRUNSON Sentinel Model 271 Optical Tooling Collimator

The Brunson OT202257 Sentinel 271 Optical Tooling Collimator is a high-precision instrument designed for aligning and adjusting optical systems. This collimator features a 271mm focal length, making it an excellent choice for larger optical setups and applications requiring greater magnification.

The collimator body is constructed from aluminum, ensuring durability and stability. It comes with a removable, adjustable mirror that allows for easy alignment of the optical beam. The mirror can be adjusted using the provided micrometer adjustment knob, offering fine-tuned control for precise collimation.

The collimator also includes a 1-inch CNC-machined optical flat, which is used to measure the flatness of optical surfaces. This optical flat is made of high-quality borosilicate glass and features a blackened, matte surface to minimize reflections.

The Brunson OT202257 Sentinel 271 Optical Tooling Collimator includes a set of threaded accessory holes for mounting additional tooling, such as a power supply for heating the mirrors or a laser alignment system. The collimator is also compatible with Brunson's optional laser alignment kit, which can help streamline the collimation process and improve accuracy.

This collimator comes with a soft carrying case for easy transportation and storage. It also includes a detailed user manual and a calibration certificate, ensuring that customers have all the information they need to get started with their new instrument and maintain its accuracy over time.

The Brunson OT202257 Sentinel 271 Optical Tooling Collimator is an essential tool for any optical lab or research facility, offering precise collimation capabilities and the ability to measure and correct for optical surface errors. Its robust construction, adjustable mirror, and compatibility with optional accessories make it a versatile and valuable addition to any optical setup.

The Brunson OT202257 Sentinel 271 Optical Tooling Collimator is a device used to align and adjust the optical components of various instruments, such as telescopes and laser pointers. Here are some pros and cons to help you make an informed decision about purchasing this collimator.

1. High Precision: The Brunson Sentinel 271 collimator offers high precision and accuracy in collimating optical systems. It is suitable for both amateur and professional use.

2. Adjustable Focus: The collimator comes with an adjustable focus knob, allowing for fine-tuning of the collimation process. This feature is particularly useful when aligning complex optical systems.

3. Durable Construction: The device is built with high-quality materials, making it robust and long-lasting. It is also portable, making it easy to transport to different locations for use.

4. Versatile: The collimator is compatible with a wide range of optical systems, making it a versatile tool for various applications.

1. Expensive: The Brunson OT202257 Sentinel 271 collimator is relatively expensive compared to other collimators in the market. This may be a significant consideration for those on a budget.

2. Complex Design: The collimator may require some technical expertise to operate effectively. This could be a disadvantage for beginners or those without a strong background in optics.

3. Limited Field of View: The collimator has a limited field of view, which may make it less suitable for aligning larger optical systems.

In conclusion, the Brunson OT202257 Sentinel 271 Optical Tooling Collimator is a high-precision and versatile tool for collimating various optical systems. Its adjustable focus knob and durable construction make it a valuable investment for both amateur and professional users. However, its high cost and complex design may be disadvantages for some users. Ultimately, the decision to purchase this collimator depends on your specific needs, technical expertise, and budget. If you require high precision and accuracy in collimating optical systems and are willing to invest in a robust and versatile tool, then the Brunson Sentinel 271 collimator is an excellent choice.

Details:

The paired-line near target allows offset measurements when using instruments with micrometers. Our 271 tilt collimator provides two articles near and infinity for optical instrument testing evaluation. The steel barrel is hardened and ground, meets.I.A. The infinity target is graduated for angular measurement estimations, with a resolution of 30 arc seconds and range arc minutes in two directions see illustration below.

271 Tilt Collimator s://share.google/. A top-mounted spirit level vial let's you set the collimator article pattern in a plumb orientation.

part #: ot202257 price

• $820.00

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• brand: Brunson
• manufacturer part number: OT202257

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• availability: In Stock
• options: Ship-to-home
• quantity: 1
• started: January 16, 2026
• best offers: True
• sold: 0

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• policy: No Returns

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• condition: Used

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• class: Standard
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• cost: $20.00
• type: Fixed

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• # reviews: 152
• city: Lawrence, Massachusetts
• rating: 100.0%