Description
Product Overview
The Alstar 9×50 finder scope is engineered to bring faint deep‑sky objects into clear view for any telescope user. Featuring a 50 mm objective lens, achromatic optics, and a multicoated lens system, the scope delivers bright, true‑to‑life images at a comfortable 9× magnification. Its compact dimensions of 3.5 × 6 × 9.8 inches and a lightweight 1.1 lb build allow it to attach securely to most telescopes via a universal mounting bracket. The included adjustment screws and spring mechanism enable precise alignment, ensuring the finder remains perfectly calibrated with the main optical tube.
Usage
Designed for both amateur stargazers and seasoned astronomers, this finder scope excels in a variety of observing conditions. Whether you are setting up a backyard observatory, joining a star‑party, or traveling to dark‑sky sites, the Alstar 9×50 provides rapid target acquisition and reliable performance. Its 90 degree viewing angle reduces neck strain when scanning near the zenith, making it ideal for extended sessions. The scope’s robust construction also withstands the occasional bumps during transport, ensuring consistent optical quality wherever you point your telescope.

Why Choose Us
Alstar combines decades of optical engineering with meticulous quality control to deliver a finder scope that stands out in the market. The achromatic doublet design minimizes chromatic aberration, while the multicoated lenses suppress reflections and increase light transmission. Each unit undergoes rigorous testing for alignment accuracy and durability before shipping. With a 4.7‑star rating from verified customers and a best‑seller rank of #57 in Telescope Finder Scopes, the Alstar 9×50 has proven its reliability and value to the astronomy community.
Key Features
- 50 mm objective lens with achromatic optics for bright, color‑accurate images
- 9× magnification provides a wide field while retaining detail
- Multicoated lens surfaces reduce glare and maximize light transmission
- Universal mounting bracket fits most telescopes with easy‑focus adjustment
- 90 degree viewing angle enhances comfort during high‑zenith observations
FAQ
Can this finder scope be used with any telescope?
Yes, the Alstar 9×50 includes a universal mounting bracket that fits the majority of Dobsonian, Newtonian, and refractor telescopes. The adjustable screws allow fine‑tuning to match the optical axis of your specific instrument.
What is the benefit of multicoated lenses?
Multicoating reduces surface reflections, which increases the amount of light reaching your eye. This results in brighter, sharper views of faint objects such as nebulae and galaxies, especially under light‑polluted skies.
How do I align the finder scope with my main telescope?
First, point your main telescope at a distant, well‑lit object. Then, adjust the two alignment screws on the finder until the same object appears centered in the finder’s crosshairs. The spring mechanism holds the alignment steady during use.
Is the 90 degree viewing angle adjustable?
The 90 degree angle is fixed to provide a comfortable viewing position, but the scope’s orientation can be rotated within its mount to suit personal preference.
What warranty does Alstar offer?
Alstar provides a one‑year limited warranty covering manufacturing defects. Customer support is available for troubleshooting and replacement parts if needed.




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