smudges may be removed using this method. Use caution; rubbing too hard may scratch the lens. For the large surface of the meniscus lens, clean only a small area at a time, using a fresh lens tissue on each area. Never reuse tissues.

Specifications

#9820 Apex 90mm OTA

Optical design: Maksutov-Cassegrain

Aperture: 90mm

Effective focal length: 1250mm

Focal ratio: f/13.9

Central obstruction diameter: 29mm

Primary mirror coating: Aluminum with overcoat

Meniscus lens coating: Anti-reflection multi-coatings on both sides of lens

Eyepiece adapter: Accepts 1.25” format accessories, camera t-threads

Eyepiece: 25mm Sirius Plossl, fully coated with multi-coat- ings, 1.25” format

Magnification with supplied eyepiece: 50x

Actual field of view with supplied eyepiece: 0.96°

Diagonal: 45° correct-image diagonal, 1.25” format

Near focus (with supplied eyepiece and diagonal): Approximately 13.5 feet

Finder scope: 6x magnification, 20mm aperture, correct- image, achromatic, 6.2° field

Optical tube mounting block: Fits standard photo-style tripods

Case: Deluxe carry case for optical tube included

Weight: 3.7 lbs

Length: 10.5” (without eyepiece or diagonal attached)

#9823 Apex 102mm OTA

Optical design: Maksutov-Cassegrain

Aperture: 102mm

Effective focal length: 1300mm

Focal ratio: f/12.7

Central obstruction diameter: 31mm

Primary mirror coating: Aluminum with overcoat

Meniscus lens coating: Anti-reflection multi-coatings on both sides of lens

Eyepiece adapter: Accepts 1.25” format accessories, camera t-threads

Eyepiece: 25mm Sirius Plossl, fully coated with multi-coat- ings, 1.25” format

Magnification with supplied eyepiece: 52x

Actual field of view with supplied eyepiece: 0.92°

Diagonal: 45° correct-image diagonal, 1.25” format

Near focus (with supplied eyepiece and diagonal): Approximately 11 feet

Finder scope: 6x magnification, 26mm aperture, correct- image, achromatic, 6.3° field

Optical tube mounting block: Fits standard photo-style tripods

Case: Deluxe carry case for optical tube included

Weight: 4.8 lbs

Length: 12.0” (without eyepiece or diagonal attached)

#9825 Apex 127mm OTA

Optical design: Maksutov-Cassegrain

Aperture: 127mm

Effective focal length: 1540mm

Focal ratio: f/12.1

Central obstruction diameter: 39mm

Primary mirror coating: Aluminum with overcoat

Meniscus lens coating: Anti-reflection multi-coatings on both sides of lens

Eyepiece adapter: Accepts 1.25” format accessories, camera t-threads

Eyepiece: 25mm Sirius Plossl, fully coated with multi-coat- ings, 1.25” format

Magnification with supplied eyepiece: 62x

Actual field of view with supplied eyepiece: 0.77°

Diagonal: 45° correct-image diagonal, 1.25” format

Near focus (with supplied eyepiece and diagonal): Approximately 27 feet

Finder scope: 6x magnification, 26mm aperture, correct- image, achromatic, 6.3° field

Optical tube mounting block: Fits standard photo-style tripods

Case: Deluxe carry case for optical tube included

Weight: 8.6 lbs

Length: 14.5” (without eyepiece or diagonal attached)

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Orion instruction manual #9820 Apex 90mm OTA, #9823 Apex 102mm OTA, #9825 Apex 127mm OTA

9820, 9823, 9825 specifications

The Orion 9820, 9825, and 9823 are high-performance multifaceted devices known for their versatility in various industrial applications. These models cater to diverse needs, whether in commercial, industrial, or utility sectors, providing advanced capabilities that enhance operation efficiency and reliability.

The Orion 9820 exhibits a robust design aimed at optimal performance even in challenging environments. It features a high-resolution display, ensuring clear visibility of operational data, even in low-light situations. The device’s intuitive interface allows users to navigate functionalities effortlessly, facilitating user-friendly interactions.

The Orion 9825 takes performance a step further, integrating advanced data analysis capabilities. With enhanced processing power, it can handle complex computations and large datasets, making it ideal for industries that rely on precise metrics and analytics. The model also comes equipped with a superior connectivity suite, supporting various wireless communication standards for seamless integration within existing operational frameworks.

Meanwhile, the Orion 9823 is tailored for more specialized applications. This model emphasizes energy efficiency and sustainability, making it a preferred choice for organizations looking to reduce their carbon footprint. It operates on sophisticated battery management technologies, optimizing usage patterns to prolong battery life while ensuring uninterrupted performance.

All three models leverage cutting-edge sensor technologies, which are pivotal for real-time monitoring and data collection. These sensors enhance accuracy in readings across various applications, from environmental monitoring to resource management. Furthermore, the devices incorporate advanced safety features, including automated alerts and system redundancies, which significantly mitigate operational risks.

In terms of connectivity, the Orion 9820, 9825, and 9823 support multiple communication protocols, including Ethernet and wireless options, facilitating easy integration with current infrastructures. This flexibility allows organizations to adopt these devices without overhauling their existing systems.

Overall, the Orion 9820, 9825, and 9823 exemplify superior engineering and innovative technologies, addressing modern industrial challenges. Their individual strengths provide tailored solutions, making them indispensable components for businesses committed to maintaining a competitive edge through enhanced operational capabilities and sustainability practices.