Will this fit into the svbony guide scope? the svbony guide scope is reflected and i would like to have the image flipped upright.

thanks for your question, for SV188P dielectric mirror star diagonal, it can only fit with SV198 Guide scope. here is the link: https://www.amazon.com/dp/B09C8913FZ?ref=myi_title_dp If any, please contact us through Amazon message.

Svbony, is this diagonal actually painted red on the inside as some buyers indicated?

Unless there are two versions of this diagonal just know that the side panels ARE red on the outside AND inside. As some buyers report this could cause a reddish reflection that might cast a red hue onto what is being viewed, particularly brighter objects I would guess. Due to cloudiness, I haven't been able to test that possibility yet. Otherwise it's a nice 99% diagonal.

Does this diagonal have a stop to keep a standard size Barlow tube from colliding with the mirror?

thanks for the question. For the SVBONY SV188P Dielectric Mirror Star Diagonal, there is no blocking thing, the end where the eyepiece or accessories are installed, there is about 45mm long installation space in the inner section, don't worry about touching the lens.

"when use the sv188p with maksutov-cassegrain (mak-cass) or schmidt-cassegrain telescope, you need a special adapter." what is the needed adapter?

thanks for your question. If your telescope has a two-inch interface, you may need a 2-inch to 1.25-inch adapter ring.

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

Product ID: 381043030

Details

Brand
SVBONY
Focus Type
Fixed Focus
Model Name
FF9171B
Objective Lens Diameter
31.75
Product Dimensions
11.2D x 6.1W x

🔄90° Viewing Angle for Comfort

🔩Brass Compression Ring for Secure Fit

🪞99% Reflectivity Dielectric Coating

R2432

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Description

🌌 Elevate your stargazing game with precision and comfort!

UNIVERSAL 1 25 COMPATIBILITY - Fits all standard 1.25-inch telescopes, eyepieces, filters, and Barlow lenses—upgrade your setup without hassle.
CRYSTAL CLEAR VIEWS EVERY NIGHT - Super-flat dielectric mirror delivers over 99% reflectivity, maximizing light transmission for stunning astronomical clarity.
COMFORT FIRST 90 VIEWING ANGLE - Reflects light path at a right angle to provide a natural, strain-free viewing posture for those long celestial observations.
EFFORTLESS SECURE EYEPIECE LOCK - Built-in brass compression ring and thumbscrew prevent eyepiece rotation and barrel scratches during intense stargazing sessions.
IMAGE ORIENTATION OPTIMIZED FOR ASTRONOMY - Corrects upside-down images for an upright view, enhancing your deep-sky experience while maintaining true celestial orientation.

The SVBONY SV188P Dielectric Mirror Star Diagonal is a premium 1.25-inch telescope accessory featuring a super-flat dielectric mirror with 99% reflectivity for enhanced brightness and clarity. Its 90-degree viewing angle ensures comfortable observation, while the brass compression ring secures eyepieces firmly without damage. Compatible with standard 1.25-inch telescope accessories, it corrects image orientation for an optimized astronomical experience.

Specifications

ASIN	B08QRY4V97
Best Sellers Rank	#130,960 in Electronics ( See Top 100 in Electronics ) #2 in Telescope Diagonals & Erecting Prisms
Box Contents	1X SVBONY SV188P Dielectric Mirror Star Diagonal
Brand Name	SVBONY
Compatible Devices	Eyepieces, Filters
Customer Reviews	4.7 4.7 out of 5 stars (334)
Finderscope	no
Focus Type	Fixed Focus
Item Dimensions D x W x H	11.2D x 6.1W x 8.4H Centimeters
Item Weight	0.2 Kilograms
Manufacturer	SVBONY
Manufacturer Part Number	FCAF9171B
Model Name	FF9171B
Model Number	FF9171B
Number of Items	1
Number of Packs	1
Objective Lens Diameter	31.75 Millimeters
Product Features	Dielectric Coatings for High Reflectivity and Brass Compression Ring for Secure Eyepiece Fixing
Unit Count	1.0 Count

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R2432

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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