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SVBONY SV188P Dielectric Mirror Star Diagonal, 90 Degree Mirror Diagonal, 99% Reflectivity Dielectric Coatings with Brass Compression Rings (1.25 inch)
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SVBONY SV188P Dielectric Mirror Star Diagonal, 90 Degree Mirror Diagonal, 99% Reflectivity Dielectric Coatings with Brass Compression Rings (1.25 inch)
Experience a super flat mirror with dielectric coatings to reduce reflected light loss, providing over 99% reflective surface for astronomical viewing!
SVBONY SV188P Dielectric Mirror Star Diagonal, 90 Degree Mirror Diagonal, 99% Reflectivity Dielectric Coatings with Brass Compression Rings (1.25 inch)
Item #: 40465196

SVBONY SV188P Dielectric Mirror Star Diagonal, 90 Degree Mirror Diagonal, 99% Reflectivity Dielectric Coatings with Brass Compression Rings (1.25

Item #: 40465196

USD 58

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Experience a super flat mirror with dielectric coatings to reduce reflected light loss, providing over 99% reflective surface for astronomical viewing!
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What Stands Out

High Reflectivity
Boasting 99% reflectivity, the SVBONY SV188P enhances light transmission, delivering brighter and clearer images, crucial for astronomical observations and astrophotography enthusiasts.
Durable Design
Constructed with brass compression rings, this diagonal ensures secure eyepiece attachment, preventing slippage and damage, making it ideal for both amateur and professional astronomers.
User-Friendly
The 90-degree angle design provides comfortable viewing angles, reducing neck strain during long observation sessions, making stargazing more enjoyable for users of all experience levels.

Product Details

Shop SVBONY SV188P Dielectric Mirror Star Diagonal, 90 Degree Mirror Diagonal, 99% Reflectivity Dielectric Coatings with Brass Compression Rings (1.25 inch) online at a best price in Micronesia. B08QRY4V97
  • Dielectric coatings for reduced reflected light loss
  • 1.25 inches nosepiece fits standard 1.25in telescopes
  • 90 degree viewing angle for more comfortable viewing
  • Corrects upside down and left-right reversed images
  • Brass compression ring for secure adjustments
  • 99% reflectivity for optimal astronomical viewing
Focus TypeFixed Focus
Finderscopeno
Compatible DevicesEyepieces, Filters
Additional FeaturesDielectric Coatings for High Reflectivity and Brass Compression Ring for Secure Eyepiece Fixing
Objective Lens Diameter31.75 Millimeters
Item Dimensions D x W x H4.4"D x 2.4"W x 3.3"H (11.2 x 6.1 x 8.4 cm)
Item Weight0.2 Kilograms
BrandSVBONY
Model NameFF9171B
ManufacturerSVBONY
Manufacturer Part NumberFCAF9171B
Model NumberFF9171B
Built-In Media1X SVBONY SV188P Dielectric Mirror Star Diagonal
Unit Count1.0 Count
Product Dimensions (L x W x H)4.4"D x 2.4"W x 3.3"H (11.2 x 6.1 x 8.4 cm)
Country of OriginThis item will be imported from US
Date First AvailableApril 13, 2021

Who Should Buy?

Suitable For
  • Amateur Astronomers

    Ideal for hobbyists looking to enhance their telescope setup with higher reflectivity and better image quality.

  • Astrophotographers

    Suitable for those capturing images of celestial bodies who need maximum light transmission and minimal distortion.

  • Telescope Upgraders

    Perfect for users wanting to upgrade their existing diagonal for improved performance in light gathering and stability.

Not Suitable For
  • Professional Observers

    May not meet the high-end specifications required by professional astronomers utilizing advanced equipment.

Product Description

SVBONY SV188P Dielectric Mirror Star Diagonal, 90 Degree Mirror Diagonal, 99% Reflectivity Dielectric Coatings with Brass Compression Rings (1.25 inch)

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Customer Questions & Answers

  • Question: What is the primary feature of the SVBONY SV188P Dielectric Mirror Star Diagonal?

    Answer: The SVBONY SV188P Dielectric Mirror Star Diagonal features a 99% reflectivity dielectric coating, which enhances light transmission and minimizes light loss. This means that stargazers can experience clearer and brighter images through their telescopes. The 90-degree angle design also provides comfort during observation, allowing for easy setup and a better viewing angle. This diagonal is especially beneficial for observing celestial objects such as planets and star clusters where clarity and brightness are crucial.
  • Question: What are brass compression rings used for in the SVBONY SV188P?

    Answer: Brass compression rings provide a secure grip on the eyepiece and prevent slipping or damage during use. Unlike traditional set screws, these rings distribute pressure evenly, protecting the eyepiece from scratches and ensuring a snug fit. This is particularly advantageous when switching between different eyepieces or during transportation. Users can feel confident that their equipment will remain intact and free from damage, enhancing their overall stargazing experience.
  • Question: Can the SVBONY SV188P be used with any telescope?

    Answer: The SVBONY SV188P is designed to fit telescopes that accommodate a 1.25-inch diagonal. Before purchasing, ensure your telescope supports this size. This versatility allows users to upgrade their existing setup easily, enhancing their observational capability without needing to invest in new telescopes. Whether you’re using a refractor or a reflector telescope, this feature makes it an accessible choice for a wide range of astronomy enthusiasts.
  • Question: How does the SVBONY SV188P enhance image quality?

    Answer: The dielectric coatings on the SVBONY SV188P maximize reflectivity, minimizing light loss while enhancing image sharpness and contrast. This is particularly important for observing faint celestial objects or during astrophotography. By improving light transmission, users can expect to see more detail in nebulae, star clusters, and other astronomical features that would otherwise be dim or indistinct with lower quality diagonals.
  • Question: Is the SVBONY SV188P suitable for beginners?

    Answer: Yes, the SVBONY SV188P is user-friendly and ideal for beginners who are exploring astronomy. Its robust build and straightforward installation make it easy for novices to upgrade their gear without complicated setups. Additionally, the enhanced image quality it provides can greatly improve the learning experience, allowing beginners to view celestial objects with greater clarity and detail, encouraging their passion for the hobby.
  • Question: What types of celestial objects can I observe with this diagonal?

    Answer: With the SVBONY SV188P, users can effectively observe a variety of celestial objects including planets, the Moon, star clusters, and even some nebulae. Its high reflectivity aids in capturing bright and precise images, which is essential for detailed lunar observations or tracking the rings of Saturn. Whether you're a casual observer or an aspiring astrophotographer, this diagonal offers the versatility needed to explore the night sky.
  • Question: What is the difference between dielectric-coated and aluminum-coated diagonals?

    Answer: Dielectric-coated diagonals like the SVBONY SV188P provide significantly higher reflectivity (around 99%) compared to standard aluminum-coated ones, which typically reflect about 85-90%. This means that with a dielectric diagonal, users can expect brighter and clearer images with better color fidelity. This makes dielectric diagonals a preferred choice for serious astronomers focused on maximizing performance during stargazing sessions.
  • Question: How should I clean the SVBONY SV188P diagonal?

    Answer: To clean the SVBONY SV188P, it’s best to use a microfiber cloth and a dedicated optical lens cleaner. Begin by gently removing dust and fingerprints with the dry cloth, followed by a few drops of cleaner for smudges. Always avoid abrasive materials to maintain the integrity of the dielectric coating. Regular maintenance will ensure that the diagonal continues to provide optimal performance and image quality over time.
  • Question: What makes the 90-degree angle important for viewing?

    Answer: The 90-degree angle of the SVBONY SV188P diagonal allows for a more comfortable viewing position, especially when observing objects near the zenith. This angle reduces strain on the neck and back, making extended observation more enjoyable. It is particularly useful for astronomers who spend long hours observing the night sky and need an ergonomic setup for optimal comfort.
  • Question: Where can I buy the SVBONY SV188P Dielectric Mirror Star Diagonal in Micronesia?

    Answer: You can purchase the SVBONY SV188P Dielectric Mirror Star Diagonal from Ubuy. They offer a wide selection of astronomical equipment and often provide efficient delivery options for customers in Micronesia. Ubuy is known for its range of products, allowing you to conveniently shop for telescopes and accessories all in one place.

SVBONY Diagonals FF9171B Editorial Review

The SVBONY SV188P Dielectric Mirror Star Diagonal, 1.25 Inch 90 Degree Mirror Diagonal, 99% Reflectivity Dielectric Coatings with Brass Compression Rings is an affordable option with a 99% reflective, dielectric-coated mirror. The side plates of the diagonal are red on the inside and may cause internal reflections. However, it can be fixed by carefully disassembling the diagonal and coating the inside of the plates with flat black paint. Although it has a shorter optical path, it can help to get aligned and give sharper images. The product is easy to use and comes with high-quality packaging. It provides a perfect image with a Svbony 503 80 mm telescope and a 6 mm Svbony eyepiece. The optically aligned mirror is made with nicely machined all-metal Construction except for the mirror.

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Pros

  • Affordable option with a 99% reflective, dielectric-coated mirror
  • Shorter optical path
  • Easy to use
  • High-quality packaging

Cons

  • Red anodized aluminum side plates may cause internal reflections

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USD 58

Order now and get it around Thursday, August 27

QTY:

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Features & Benefits

  • 99% reflectivity with dielectric coatings for optimal light retention.
  • Designed for 1.25-inch refractor telescopes; connects directly to standard filters.
  • Features a durable machined and anodized aluminum housing.
  • 90-degree viewing angle for comfortable observations of overhead objects.
  • Brass compression ring ensures eyepiece stability without scratching.
  • Compatible with various accessories including eyepieces and Barlow lenses.

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