Astromania
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Astromania 1.25 Inch Telescope Star Diagonal 90 with Amici Erecting Prism
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Astromania 1.25 Inch Telescope Star Diagonal 90 with Amici Erecting Prism
The prism gives you a bright and clear picture: The prism is made of genuine optically processed BK7 glass, high quality optical prism inside rather than a mirror which makes your image clear and sharp.
Astromania 1.25 Inch Telescope Star Diagonal 90 with Amici Erecting Prism
Item #: 223418785

Astromania 1.25 Inch Telescope Star Diagonal 90 with Amici Erecting Prism

85% of respondents would recommend this to a friend

Item #: 223418785

GMD 3042

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The prism gives you a bright and clear picture: The prism is made of genuine optically processed BK7 glass, high quality optical prism inside rather than a mirror which makes your image clear and sharp.
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What Stands Out

Erect Image Quality
The Amici erecting prism provides a right-side-up image, ensuring a natural viewing experience ideal for terrestrial observations as well as astronomical settings.
Versatile Compatibility
Designed for 1.25-inch telescopes, this diagonal enhances versatility, suiting various telescopes and eyepieces for improved stargazing and terrestrial viewing.
Enhanced Light Transmission
Astromania's precision optics maximize light transmission, delivering brighter and clearer images, which is crucial for detailed observation of celestial bodies and landscapes.

Product Details

Shop for Astromania 1.25 90-Degree Erecting Prism at Ubuy The Gambia. Get clear and sharp images with this optical prism inside rather than a mirror. Perfect for astronomy enthusiasts.
Eye Piece Lens DescriptionPlu00f6ssl
MountEquatorial Mount
Focus Typefixed
Compatible DevicesTelescopes with 1.25 inch focusers (excluding reflector telescopes)
Field Of View90 degrees
Zoom Ratio60x
Additional Features90-Degree Comfortable Observation, Thread for Eliminate Light
Optical-Tube Length1.25 inches
Item Weight4.59 ounces (130.13 grams)
BrandAstromania
Item HighlightStar Diagonal Prism for Upright & Correct Image, Telescope Accessory For 1.25"Refractor Telescope, Fully Multi-Coated Lense
Unit Count1 Count
ManufacturerAstromania
Number of Items1
Model NumberSKU_AM_EP1D90
Manufacturer Part NumberSKU_AM_EP1D90
Optical Tube Length1.25 inches
Telescope Mount DescriptionEquatorial Mount
Item HighlightStar Diagonal Prism for Upright & Correct Image, Telescope Accessory For 1.25"Refractor Telescope, Fully Multi-Coated Lense See more

Who Should Buy?

Suitable For
  • Amateur Astronomers

    Ideal for beginners seeking an intuitive way to navigate the night sky comfortably through telescopes.

  • Stargazing Enthusiasts

    Enhances viewing experience by providing a relaxed observing position, suitable for extended periods of stargazing.

  • Small Telescope Owners

    Compatible with 1.25-inch telescopes, making it a practical accessory for those with compact setups.

Not Suitable For
  • Professional Use

    Not suitable for high-end observational requirements where precision and advanced optics are necessary.

Product Description

Astromania 1.25 Inch Telescope Star Diagonal 90 with Amici Erecting Prism

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is an erecting prism and how does it work?

    Answer: An erecting prism is an optical device used in telescopes and binoculars to reorient an inverted image to a non-inverted one. The Astromania 1.25 90-Degree Erecting Prism uses high-quality glass to ensure clarity and brightness. It redirects light through prisms, maintaining the true orientation of the image. This feature is particularly beneficial when viewing terrestrial objects, as it allows you to see them as they appear in reality, enhancing your observing experience whether you're birdwatching or stargazing.
  • Question: What makes the Astromania 90-Degree Erecting Prism different from traditional prisms?

    Answer: Unlike traditional prisms that may utilize mirrors, the Astromania Erecting Prism employs internal optics which provide a sharper, clearer image. This design minimizes light loss and distortion, contributing to a more vivid viewing experience. When observing celestial objects or landscapes, you benefit from enhanced detail and color accuracy. This is crucial for astronomy enthusiasts and nature lovers who want the best possible views, free from optical aberrations.
  • Question: Can this prism be used with any telescope?

    Answer: The Astromania Erecting Prism is designed for 1.25-inch telescope eyepieces, making it compatible with most standard telescopes. Ensure that your telescope has a 1.25-inch focuser for optimal use. It is a perfect choice for various telescopes, from beginner models to advanced setups. By integrating the prism, you enhance your telescope's functionality, making it easier to observe terrestrial subjects and improve the overall viewing experience.
  • Question: What type of images can I expect when using this prism?

    Answer: When utilizing the Astromania Erecting Prism, you can expect bright, crisp, and true-to-life images. The prism's internal setup rather than a mirror reduces reflections and aberrations, resulting in enhanced clarity. Whether you're observing the moon's craters or a distant mountain range, the images will appear sharp and correctly oriented. This precision is vital for both amateur astronomers and serious observers aiming for the best visual experience.
  • Question: Is the Astromania 90-Degree Erecting Prism suitable for beginners?

    Answer: Yes, the Astromania 90-Degree Erecting Prism is especially suitable for beginners. Its simple setup and ease of use allow novice astronomers to enhance their viewing without the need for complex adjustments. The correct orientation of images simplifies identifying celestial objects and landscapes, making learning about astronomy more enjoyable. This makes it a valuable addition for anyone just starting in this hobby.
  • Question: What are the dimensions and weight of the prism?

    Answer: The Astromania 1.25 Erecting Prism is compact and lightweight, which facilitates easy portability and integration into existing telescope setups. Its standard dimensions ensure it fits smoothly into most 1.25-inch eyepiece holders. This design consideration makes it convenient for outdoor use, so you can set up swiftly for observing sessions without cumbersome equipment. It’s ideal for stargazing nights or daytime observations.
  • Question: How does this prism enhance terrestrial viewing?

    Answer: The Astromania Erecting Prism is specifically designed to offer more reliable and enjoyable terrestrial viewing. By providing an erect and correctly oriented image, it allows for accurate depiction of landscapes, buildings, and wildlife. This feature can be incredibly beneficial for photographers and nature enthusiasts who want to capture or observe natural beauty without the confusion of inverted images. Its clarity translates to a more immersive experience and aids in identification.
  • Question: What coatings are used in the prism for image quality?

    Answer: The Astromania 90-Degree Erecting Prism features fully multi-coated optics that enhance light transmission while reducing glare and reflections. This ensures that the images you view are not only sharper but also maintain color fidelity and contrast. Such coatings are critical when viewing celestial objects or landscapes in various light conditions, allowing for a truly engaging observation experience. The increased light-gathering capability also benefits low-light viewing sessions.
  • Question: Can the prism be used for astrophotography?

    Answer: While the Astromania Erecting Prism is primarily designed for visual observing, it can be used in astrophotography setups. However, keep in mind that certain setups may require additional adjustments to achieve the best results. By providing clear and oriented images, it allows photographers to capture sharper images of celestial bodies with lower distortion levels. It’s a great starting point for amateur astrophotography enthusiasts eager to document their findings.
  • Question: Where can I buy the Astromania 1.25 90-Degree Erecting Prism in The Gambia?

    Answer: You can buy the Astromania 1.25 90-Degree Erecting Prism from Ubuy. They offer a reliable online shopping experience with a wide selection of products, including this high-quality optical prism. Navigate their platform to find detailed product information and options to suit your needs.

Astromania Diagonals SKU_AM_EP1D90 Editorial Review

**** The Erect Image 45° Diagonal Prism has made a noticeable impact among amateur astronomers, as evidenced by user feedback. Customers appreciate the superior clarity and comfort this upgraded accessory provides compared to cheaper alternatives. One owner particularly highlighted the improvement in image crispness and the correct orientation that aligns with what is seen with the naked eye, elevating the overall viewing experience. The ability to use additional accessories, like a moon filter, seamlessly with this prism has also earned it praise, making it a versatile choice for stargazers. Despite some users noting minor cosmetic flaws, such as fine scratches likely from manufacturing, many are excited to test its performance under actual viewing conditions. Overall, the positive reception underscores its value as a beneficial addition to a telescope setup, particularly for those looking to enhance their astronomy experience. **

Customer Reviews & Ratings

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Pros

  • Provides a crisper, clearer image.
  • Corrects orientation to match what is seen with the naked eye.
  • Offers a comfortable viewing angle.
  • Compatible with other accessories, including moon filters.
  • Highly recommended for amateur astronomy enthusiasts.

Cons

  • Some users reported fine scratches on the prism.

Platform Trust & Buyer Confidence

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“Great products and very good service: very easy and very fast international delivery.”

9 September 2026 · via Trustpilot
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“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”

10 September 2026 · via Trustpilot
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“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”

10 September 2026 · via Trustpilot
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“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot
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Adele
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“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot
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GMD 3042

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