MEADE SM90II Coronado Solarmax Telescope Double Stack Etalon 90MM Hydrogen Alpha

( Brand: Meade ), ( Manufacturer Part Number: SM90II ), ( Lens Coating: Fully Multi-coated ), ( Objective Lens Diameter: 61-100 Mm ), ( Finderscope: Sol Solar Finder ), ( Maximum Magnification: 80-100x ), ( Aperture: 90 Mm ), ( Type: Refractor ), ( Mount Type: Solarmax Ii Telescope Only No Mount Or Tripod Included ), ( Features: Double Stack ), ( Country/region Of Manufacture: United States )

Review MEADE Coronado Solarmax Telescope Double Stack Etalon Hydrogen Alpha

The Meade Instruments SM90II Coronado 90mm SolarMax Telescope with a Double Stack Etalon Hydrogen Alpha filter is an exceptional instrument designed specifically for solar observation. This telescope is engineered to provide sharp, clear images of the sun's surface and solar features, making it an essential tool for solar astronomy enthusiasts and scientists.

The heart of this telescope is the 90mm (3.54 inches) Quadruplet refracting objective lens, which is coated with Meade's advanced multi-coating for maximum light transmission and superior image quality. This lens is coupled with a high-quality focal reducer that reduces the focal length and increases the field of view for better coverage of the sun.

The Double Stack Etalon Hydrogen Alpha filter is a crucial component of this system. This filter is designed to isolate the specific wavelength of light emitted by hydrogen, which is predominantly present in solar flares and prominences. The double-stacked design provides enhanced contrast and improved rejection of unwanted light, resulting in clearer, more detailed solar images.

The telescope's construction is robust and durable, with a lightweight yet strong aluminum tube and a sturdy steel tripod. The telescope comes with a precise 10mm Pl ssl eyepiece that provides a magnification of 45x, offering a wide field of view and sufficient magnification for observing solar features. The telescope also includes a 1.25" nosepiece that can be used to attach additional accessories, such as a solar filter for white-light observation or a camera adapter for imaging the sun.

The Meade SM90II Coronado 90mm SolarMax Telescope with a Double Stack Etalon Hydrogen Alpha filter is a versatile and powerful solar observing system. Its advanced design, high-quality optics, and specialized filter make it an ideal choice for anyone interested in studying the sun's dynamic and ever-changing surface.

The Meade SM90II Coronado 90mm SolarMax Telescope with a double stack etalon hydrogen alpha filter is a specialized solar telescope designed for observing the Sun in great detail. This telescope is an excellent choice for solar observers, astrophotographers, and educators. In this analysis, we will discuss the pros and cons of purchasing this telescope.

1. High-quality Solar Observations: The double stack etalon hydrogen alpha filter provides high-contrast imaging of solar features, making it an ideal instrument for solar observing.

2. Durable Construction: The telescope is built with a robust and durable design, which ensures long-lasting use. The solar tube is made of aluminum, and the telescope comes with a sturdy mount and a heavy-duty case for transportation.

3. Easy to Use: The telescope is relatively easy to set up and use, making it a great choice for beginners. It also comes with a solar finder scope to help locate the Sun quickly.

4. Versatile: The telescope can be used for solar observing and solar astrophotography. It also comes with a 1.25-inch adapter, allowing you to attach other accessories.

5. Affordable: Compared to other specialized solar telescopes on the market, the Meade SM90II Coronado is relatively affordable.

1. Limited Use: This telescope is designed specifically for solar observing and is not suitable for other types of astronomy.

2. Requires Additional Accessories: To get the best results, you will need additional accessories such as a solar filter for white light observing, a DSLR camera for solar astrophotography, and a computer for imaging processing.

3. Limited Field of View: The telescope has a narrow field of view, which may require frequent adjustments to keep solar features in the frame.

4. Difficulty in Collimation: The collimation process for this telescope can be challenging, especially for beginners.

The Meade SM90II Coronado 90mm SolarMax Telescope with a double stack etalon hydrogen alpha filter is a high-quality, affordable telescope for solar observing and solar astrophotography. Its durability, ease of use, and versatility make it an excellent choice for both beginners and experienced solar observers. However, its limited use, requirement for additional accessories, and narrow field of view are important considerations.

If you are interested in solar observing and solar astrophotography, the Meade SM90II Coronado 90mm SolarMax Telescope with a double stack etalon hydrogen alpha filter is an excellent choice. It offers high-quality solar observations, durability, and ease of use, making it a great investment for anyone looking to explore the Sun in greater detail. However, it is essential to note that this telescope is not suitable for other types of astronomy and requires additional accessories to get the best results. Therefore, it is recommended to carefully consider your observing goals and budget before making a purchase.

Details:

This listing is for a Double Stacked Coronado SolarMax II 90MM telescope. The telescope comes with a Sol Solar Finder finderscope, making it easy to locate specific features on the solar surface. Comes with Case, Dovetail plate, 26mm eyepiece and manual. Comes with a BF10 blocking filter, mounting ring built in finder scope Sol Ranger.

This Solar Telescope allows you to safely look at the sun. When combined the Hydrogen-Alpha filters narrow band pass to .5 angstroms. The scope is in pristine condition as are all filters. The double stack Etalon features rich view and tilt tuning.

One Etalon is built into the refractor and other can be removed for different solar features.

part #: sm90ii prices

• $188.99-$375.00

specifications telescuper:

• brand: Meade
• mpn: Sm90ii
• lens coating: Fully Multi-coated
• objective lens diameter: 61-100 Mm
• finderscope: Sol Solar Finder
• maximum magnification: 80-100x
• aperture: 90 Mm
• type: Refractor
• mount type: Solarmax Ii Telescope Only No Mount Or Tripod Included
• features: Double Stack
• country/region of manufacture: United States

payments telescuper:

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

offer telescuper:

• options: Ship-to-home
• sold: 0
• started: May 27, 2025
• quantity: 1
• availability: In Stock

shipping telescuper:

• service: USPS Ground Advantage
• carrier: USPS
• cost: $50.00
• class: Standard
• transit: 4-10 Days
• type: Fixed

general telescuper:

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

returns telescuper:

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

seller telescuper:

• rating: 0.0%
• # reviews: 90
• city: Floral Park, New York

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