Description
Product Overview
The NEEWER Telescope Diagonal model 33000041 is engineered from high‑grade aluminum, providing a robust yet feather‑light connection between your telescope tube and eyepiece. Measuring 4.02 x 2.6 x 2.24 inches and weighing just 3.84 ounces, it fits seamlessly into most standard optical tubes. With a precision‑ground mirror surface, it redirects the light path 90 degrees without compromising image quality, delivering sharp, correctly oriented views for both visual observation and imaging.
Usage
Designed for amateur astronomers, backyard stargazers, and field researchers, this diagonal excels in portable setups, travel‑ready observatories, and backyard sky‑watching sessions. Its compact form factor makes it ideal for quick assembly during night‑time outings, while the sturdy aluminum body resists corrosion in varying climates. Whether you are tracking planets, nebulae, or deep‑sky galaxies, the diagonal ensures a stable, ergonomic viewing angle.

Why Choose Us
NEEWER’s reputation for optical precision backs this diagonal, which undergoes rigorous quality testing to meet a 4.5‑star rating from 45 verified users. The product’s best‑seller rank (#27 in Telescope Diagonals) reflects its reliability and popularity among the astronomy community. Manufactured in compliance with strict tolerances, the diagonal offers consistent performance, minimal light loss, and a secure fit that resists loosening during extended sessions.
Key Features
- Lightweight aluminum body for easy transport and reduced load on mounts
- Compact dimensions (4.02 x 2.6 x 2.24 inches) fit most standard telescopes
- Precision‑ground mirror provides accurate 90° image rotation with minimal distortion
- Durable construction resists corrosion and wear in outdoor conditions
- Highly rated 4.5‑star customer reviews confirming reliability and ease of use
FAQ
What telescope sizes are compatible with this diagonal?
The 33000041 diagonal fits standard 1.25‑inch and 2‑inch focuser tubes, making it suitable for a wide range of refractors, reflectors, and catadioptric telescopes.
Is the aluminum coating prone to scratching?
The aluminum is anodized for extra hardness, providing resistance to scratches and environmental wear while maintaining a sleek appearance.
Can this diagonal be used for astrophotography?
Yes, its precise mirror alignment and stable construction make it ideal for attaching cameras or imaging sensors, ensuring accurate orientation and minimal image shift.
How do I install the diagonal?
Simply insert the diagonal into the telescope’s focuser, tighten the set screws, and align the eyepiece or camera adapter. No additional tools are required.
What is the warranty period?
NEEWER offers a one‑year limited warranty covering manufacturing defects, providing peace of mind for your investment.







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