MEADE ETX-90RA Astro Telescope Optical Tube

( Brand: Meade ), ( Manufacturer Part Number: ETX-90RA ), ( Lens Coating: Fully Coated ), ( Objective Lens Diameter: 61-100 Mm ), ( Maximum Magnification: 150x ), ( Item Length: Dna ), ( Aperture: 90 Mm ), ( Type: Catadioptric ), ( Manufacturer Warranty: No ), ( Features: Mounted ), ( Unit Quantity: One ), ( Country/region Of Manufacture: United States )

Review MEADE Astro Telescope Optical Tube Assembly Parts

The Meade Instruments ETX-90RA is a compact and portable refractor telescope designed for both terrestrial and astronomical observations. This optical tube boasts a 90mm (3.54 inches) achromatic objective lens, which gathers a significant amount of light for enhanced image brightness and clarity. The focal length of the ETX-90RA is 910mm (35.8 inches), providing a reasonable magnification range for observing various celestial objects.

The optical tube is housed in a lightweight and durable aluminum tube, which ensures stability during observations while keeping the weight down for easy transportation. The tube is also fitted with a dew shield to protect the objective lens from condensation, allowing for extended use in humid conditions.

The ETX-90RA comes with a 26mm Meade Super Plossl eyepiece, offering a magnification of 35x, and a 9mm Meade Plossl eyepiece, providing a magnification of 101x. These eyepieces, along with the telescope's 1.25-inch focuser, enable users to explore the night sky with various levels of magnification.

This telescope features a smooth and precise 1.25-inch rack-and-pinion focuser with a 10:1 reduction ratio, making it easier to achieve fine focus adjustments. The focuser also has a 1.25-inch diameter, allowing for the use of a wide range of third-party eyepieces and accessories.

The Meade ETX-90RA's compact size and lightweight design make it an excellent choice for beginners and seasoned astronomers alike. Its versatility makes it suitable for observing a wide range of celestial objects, from planets and the moon to stars, nebulae, and galaxies. With its impressive light-gathering ability and easy-to-use features, the Meade ETX-90RA is an excellent investment for any aspiring or experienced stargazer.

The Meade ETX-90RA is a compact and portable refractor telescope that is popular among astronomers and stargazers. Here are some pros and cons of buying this optical tube:

1. Compact and portable: The Meade ETX-90RA is highly portable, making it an excellent choice for observing the night sky from different locations.

2. Good optics: This telescope features a 90mm aperture and f/13.5 focal ratio, which provides a good balance between light gathering ability and image quality.

3. Easy to use: The Meade ETX-90RA comes with a built-in computerized alignment system, which makes it easy to set up and use for beginners.

4. Versatile: This telescope can be used for observing various celestial objects, including planets, stars, and galaxies.

5. Affordable: The Meade ETX-90RA is a relatively affordable option for those who are just starting out in astronomy.

1. Limited aperture: The 90mm aperture of this telescope may not be sufficient for observing very faint objects, such as deep-sky galaxies, in great detail.

2. Limited tracking capability: The Meade ETX-90RA does not have advanced tracking capabilities, which may make it difficult to observe objects for extended periods of time.

3. Not suitable for astrophotography: This telescope is not ideal for astrophotography due to its limited tracking capabilities and small aperture.

The Meade ETX-90RA is a great option for those who are just starting out in astronomy and want a compact and portable telescope that is easy to use. Its good optics and built-in computerized alignment system make it a versatile instrument for observing various celestial objects. However, its limited aperture and tracking capabilities may make it less suitable for observing very faint objects or for extended periods of time.

If you are a beginner astronomer looking for a compact and portable telescope, the Meade ETX-90RA is a great option to consider. Its good optics, ease of use, and affordability make it an excellent choice for observing various celestial objects, such as planets, stars, and bright galaxies. However, if you are interested in observing very faint objects or for extended periods of time, you may want to consider a larger and more advanced telescope with better tracking capabilities.

Details:

Ask specific questions before purchase and I will answer. ETX-90RA tube optical assembly, secondary mirror cone shifted and the top eyepiece holder needs to be reset. Sold as PARTS.

part #: etx90ra prices

• $9.99-$20.99

specifications telescuper:

• brand: Meade
• mpn: Etx-90ra
• lens coating: Fully Coated
• objective lens diameter: 61-100 Mm
• maximum magnification: 150x
• item length: Dna
• aperture: 90 Mm
• type: Catadioptric
• manufacturer warranty: No
• features: Mounted
• unit quantity: One
• country/region of manufacture: United States

offer telescuper:

• sold: 0
• availability: In Stock
• quantity: 1
• options: Ship-to-home
• started: April 18, 2025

seller telescuper:

• # reviews: 1383
• city: Nederland, Colorado
• rating: 100.0%

shipping telescuper:

• cost: $0.00
• transit: 4-8 Days
• class: Economy
• type: Fixed
• service: Economy

general telescuper:

• condition: Used
• Cameras Photo > Binoculars Telescopes > Telescopes

payments telescuper:

• credit card: Diners-club
• wallet: Apple-pay
• other

returns telescuper:

• policy: No Returns

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