Orion® Helical

Fine-Focusing

Adapter

#13025

Introduction

Most modern telescopes come equipped with rack-and-pinion focusers. These are adequate for focusing at low powers.

However, when high powers are used, the limitations of the focuser come into play and make finding the precise focus point difficult. Worse, the act of adjusting most telescope focusers applies force to the telescope, resulting in unwanted vibrations and possibly moving the telescope off its target.

The Helical Fine-Focusing Adapter solves these problems. With just a twist of the fingers, the observer has precise control over the eyepiece position. The helical adapter has no backlash and allows much smaller focusing increments than can be achieved with standard focusers. When used in conjunction with your tele- scope’s standard focuser, the helical adapter will greatly enhance your focusing precision. The gentle twisting action of the adapter means no extra force is applied to the tube during focusing, so images remain steadier.

Installation

The helical adapter will fit into any 2" focuser and accepts eye- pieces with a barrel diameter of 1.25" (only).

To install the helical adapter, first remove any existing 1.25" adapter from the focuser if you have not already done so. Then insert the adapter into the focuser and secure it with the thumbscrew(s), just like you would a 2" eyepiece. Then insert the 1.25" eyepiece you wish to use into the adapter and secure it with the thumbscrew.

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The helical adapter requires that the telescope have at least 9mm of inward focus travel to focus. It requires 17mm of inward focus to utilize the full focus range of the helical adapter. Most tele- scopes will have this amount of inward focus travel.

Operation

Initial coarse focusing should be done by adjusting the tele- scopes’s main focuser. Once you are close to being in focus, rotate the helical adapter with your fingers until the object comes into focus. Go a little bit beyond sharp focus until the image just starts to blur again. Then reverse the rotation of the adapter, just to make sure you’ve hit the exact focus point. You will find the helical adapter easy to use when making small focusing adjust- ments.

Do not turn the helical adapter past its natural limit of travel. If you find that you cannot reach focus within the focus range of the helical adapter, then make further coarse adjustments with the main focuser before using the adapter to fine-focus.

Care and Maintenance

With proper care, your helical adapter will last a lifetime. Store it in a protective box or eyepiece case when not in use. Keep the adapter as clean as possible to ensure that the adapter threads have the smoothest motion possible. Over time, you may wish to add a small amount of light oil to the adapter’s threads to aid in reducing friction.

Specifications

Size: Fits 2" focusers

Eyepieces: Holds 1.25" eyepieces

Focusing design: Helical

Material: Machined aluminum

Grips: Rubber

Extension rate: .16" per revolution

Customer Support (800) 676-1343 Email: support@telescope.com

Corporate Offices (831) 763-7000

89 Hangar Way, Watsonville, CA 95076

IN 228 Rev B 02/09

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Orion 13025 specifications Orion Helical Fine-Focusing Adapter
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13025 specifications

The Orion 13025 is a remarkable piece of technology that has gained attention for its advanced features and innovative design tailored to enhance both usability and performance. Renowned in the industry for its robust build, the Orion 13025 encompasses an array of characteristics that make it stand out in its category.

At the heart of the Orion 13025 is its powerful processing unit. Specifically engineered to handle demanding tasks, this device is equipped with a multi-core processor that ensures seamless multitasking and high-efficiency performance. With rapid data processing capabilities, users are able to run multiple applications simultaneously without experiencing lag, making it an excellent choice for professionals across various fields.

One of the key features of the Orion 13025 is its impressive display technology. The device features an ultra-high-definition screen that offers vibrant colors and crystal-clear visuals. Whether for professional graphics work, gaming, or streaming, the display ensures that every detail is brought to life with stunning accuracy. Furthermore, the screen is designed to reduce eye strain, incorporating technologies such as blue light filtering, making it suitable for extended periods of use.

In terms of connectivity, the Orion 13025 is equipped with state-of-the-art options that include high-speed USB ports, Bluetooth capabilities, and advanced Wi-Fi technology. This comprehensive range of connectivity options allows users to easily connect with a variety of devices, facilitating seamless data transfer and communication.

Another noteworthy characteristic is the device's battery life. Designed for longevity and efficiency, the Orion 13025 boasts a powerful battery that can endure prolonged use, reducing the need for frequent recharges. This makes it a reliable option for professionals on the go, ensuring that they remain productive without interruptions.

Additionally, security features play a crucial role in the Orion 13025. With built-in encryption and biometric authentication options, users can rest assured that their sensitive data is protected. This focus on security is particularly appealing to businesses and individuals who prioritize data privacy.

The Orion 13025 stands out as a powerful, multifunctional device that combines performance, usability, and security. With its leading-edge technologies and thoughtful design, it promises to meet the diverse needs of users while providing a reliable and enjoyable experience. Whether in a corporate setting, educational institution, or for personal use, the Orion 13025 is poised to be a game-changer in its field.
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