- Home Page /
- Electronics /
- Camera /
- Camera Accessories /
- Telescope & Microscope Accessories /
- Telescope Accessories /
- Diagonals /
- SVBONY SV188P Dielectric Mirror Star Diagonal...
0 ratings
Item #:
220832860
SVBONY SV188P Dielectric Mirror Star Diagonal, 90 Degree Mirror Diagonal, 99% Reflectivity Dielectric Coatings with Brass Compression Rings (2 inch)
Item #:
220832860
USD 52
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Tuesday, August 18
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Experience maximum brightness and clarity with a reflectivity of up to 99%, making your stargazing an unforgettable adventure.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step 1 Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
High Reflectivity
The SVBONY SV188P boasts 99% reflectivity due to advanced dielectric coatings, enhancing light transmission for clearer and brighter images compared to standard diagonals.
Durable Build
Constructed with brass compression rings, this diagonal ensures a secure fit while minimizing the risk of damage, offering long-lasting performance for astrophotographers and hobbyists.
User-Friendly Design
With a 90-degree angle, the diagonal provides a comfortable viewing position, making it easier for users to observe celestial objects without straining their necks during extended sessions.
Product Details
| Focus Type | Fixed Focus |
| Finderscope | no |
| Additional Features | Dielectric Coating |
| Brand | SVBONY |
| Model Name | FF9171D |
| Manufacturer | SVBONY |
| Manufacturer Part Number | CAF9171 |
| Model Number | FF9171D |
| Built-In Media | 1X SVBONY SV188P Dielectric Mirror Star Diagonal |
| Unit Count | 1.0 Count |
| Objective Lens Diameter | 31.75 Millimeters |
| Item Dimensions D x W x H | 4.4"D x 2.4"W x 3.3"H (11.2 x 6.1 x 8.4 cm) |
| Item Weight | 650 Grams |
| 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) |
| Special Feature | Dielectric Coating |
Who Should Buy?
-
Amateur Astronomers
Perfect for hobbyist astronomers looking for high-quality optics to enhance their stargazing experience and image clarity.
-
Reflector Telescope Users
Ideal for users of 1.25-inch reflector telescopes seeking improved light transmission and better image contrast.
-
Beginners
Great for novice astronomers wanting an affordable yet effective diagonal for a better viewing experience.
-
Professional Astronomers
May not meet the stringent optical standards required by professional astronomers for high-end imaging and research.
Product Description
SVBONY SV188P Dielectric Mirror Star Diagonal, 90 Degree Mirror Diagonal, 99% Reflectivity Dielectric Coatings with Brass Compression Rings (2 inch)
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the purpose of the SVBONY SV188P Dielectric Mirror Star Diagonal?
Answer: The SVBONY SV188P Dielectric Mirror Star Diagonal is designed to enhance the viewing experience through telescopes by reflecting light at a 90-degree angle. This diagonal not only facilitates comfortable viewing angles but also prevents light loss, which is crucial for clarity and detail in celestial observations. Its 99% reflectivity ensures that most of the light entering the telescope is utilized, making it ideal for both amateur astronomers and seasoned astrophotographers aiming for high-quality images. -
Question:
What makes the dielectric coatings on the SV188P superior?
Answer: The dielectric coatings on the SVBONY SV188P provide an impressive 99% reflectivity. This technology ensures that the light is efficiently reflected without the absorption that can occur with traditional coatings. The enhanced reflectivity results in brighter and clearer views of celestial objects, which is particularly beneficial for deep-sky observations. Users will appreciate the superior light transmission, making it an excellent choice for observations in low-light conditions or for capturing detailed astrophotography. -
Question:
How do brass compression rings benefit this mirror diagonal?
Answer: The brass compression rings on the SVBONY SV188P provide secure hold and protection for optical accessories. Unlike traditional set screws, which can scratch and damage eyepieces, the compression rings evenly distribute pressure, preventing marring while keeping your eyepiece firmly in place. This feature is particularly advantageous during long observation sessions as it maintains a secure connection without the risk of slippage, which can affect the viewing experience. -
Question:
Can the SVBONY SV188P be used with any telescope?
Answer: The SVBONY SV188P is designed for telescopes that accept 1.25-inch diagonal fittings, making it versatile for a wide range of telescope models. Before use, it's essential to verify compatibility with your specific telescope model. The diagonal enhances performance across various telescope types, whether you’re using a refractor, reflector, or compound telescope, thus providing an overall improved viewing experience. -
Question:
Does the SV188P come with any protective features?
Answer: Yes, the SVBONY SV188P is constructed with durable materials and features a robust design that ensures longevity and performance. Its brass compression rings not only secure your eyepieces but also resist corrosion, while the dielectric coatings protect against environmental factors that could affect reflectivity. This resilience makes it suitable for outdoor use, especially in varying weather conditions, ensuring that you get clear views over repeated usage. -
Question:
What types of observations is the SV188P ideal for?
Answer: The SVBONY SV188P is ideal for a variety of astronomical observations, including planetary viewings, star clusters, and deep-sky objects. Its high reflectivity and reliable construction make it especially beneficial for astrophotography applications where clarity and light retention are paramount. Whether you're a beginner seeking to explore the night sky or an experienced astronomer capturing intricate details of nebulae, this diagonal meets diverse observational needs. -
Question:
How should I clean the SV188P mirror diagonal?
Answer: To maintain the clarity and performance of the SVBONY SV188P, it's essential to clean it properly. Use a soft, lint-free cloth to gently wipe the mirror's surface, ideally using a lens cleaning solution designed for optical coatings. Avoid harsh solvents or abrasive materials, as these can damage the delicate dielectric coating. Regular maintenance ensures that you can consistently enjoy high-quality views without obstruction from dust or smudges. -
Question:
What is the significance of the 90-degree angle in this diagonal?
Answer: The 90-degree angle of the SVBONY SV188P mirror diagonal is significant as it allows for comfortable viewing positions while observing celestial objects. This angle helps users avoid awkward eyepiece positions, especially when looking at objects high in the night sky. It is particularly useful for extended observation sessions, as it minimizes strain on the neck and back, enhancing the overall stargazing experience. -
Question:
Is the SVBONY SV188P suitable for both visual and photographic use?
Answer: Absolutely. The SVBONY SV188P is suitable for both visual observations and astrophotography. Its high reflectivity ensures that maximum light is available for visual observations, offering clear and detailed views. For astrophotographers, the diagonal maintains light integrity, which is crucial when capturing long exposures of celestial events. Users can easily switch between visual and photographic modes without compromising quality. -
Question:
Where can I buy the SVBONY SV188P in Turks and Caicos?
Answer: You can purchase the SVBONY SV188P Dielectric Mirror Star Diagonal from Ubuy, a trusted online retailer in Turks and Caicos that offers a wide selection of optical equipment and accessories. Ubuy provides access to various products, ensuring that you can find the SV188P easily and conveniently from your location.
SVBONY Diagonals FF9171D Editorial Review
The SVBONY star diagonal has garnered a positive reception among customers, with many noting a marked enhancement in their viewing experiences compared to the stock diagonals that typically come with telescopes. Users have frequently commented on the significant improvements in image quality, citing brighter and sharper views, especially when observing bright celestial bodies like the Moon and Venus. The addition of the 99% reflectivity dielectric coating has proven effective, reducing light scatter and producing deeper blacks in the observed images. The build quality of the diagonal has also received praise. Customers appreciate the solid metal Construction and the inclusion of a brass compression ring, which provides a secure grip on eyepieces without causing damage—a feature that contrasts sharply with cheaper alternatives that often leave scratches. Users have expressed confidence in the diagonal's durability, likening it to professional equipment, making it suitable for both casual and more dedicated astronomers. Further, this diagonal fits perfectly into standard 1.25-inch setups and minimizes neck strain with its optimal 90-degree angle, allowing for a comfortable viewing experience, especially for high-altitude celestial targets. Despite some uncertainty regarding the Consistency of quality control from the manufacturer, most users have found their diagonals to perform exceptionally well for the price point. Overall, the SVBONY star diagonal is highly regarded as a budget-friendly option that does not compromise on performance, making it a worthy investment for both novice and experienced telescope users. **
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Pros
- Exceptional image clarity and brightness improvement.
- Sturdy metal Construction with brass compression ring.
- 99% reflectivity dielectric coating reduces light scatter.
- Fits standard 1.25-inch setups perfectly.
- Lightweight and comfortable for high-altitude viewing.
Cons
- Quality control may be inConsistent.
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
SJ
SAO JOHN
Verified buyer
“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
USD 52
Order now and get it around Tuesday, August 18
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- High-reflective dielectric coating with 99% reflectivity.
- Compatible with 2-inch telescopes and eyepieces, includes a converter for 1.25-inch eyepieces.
- 90-degree viewing angle for comfortable and upright image observation.
- Side screw locking design with brass pressure ring to protect the eyepiece.
- Specially treated interior to eliminate stray light and enhance image brightness.
- Constructed from durable aluminum alloy for long-lasting use.
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.