The SV116 Sterling hoop has an inner diameter of 70mm and can be reduced to a maximum of 43mm by adjusting the six-point screw. It is suitable for telescope tubes, guide scopes, and small-aperture astronomical OTAs with outer diameters ranging from 43mm to 70mm.
We manufacture our products on CNC machines, a must-have attribute for a company whose products adhere to strict standards of safety and performance. We achieve this by focusing on precision and durability.
Highly versatile. Compatible with standard 50mm and 60mm guide scopes. Four high-quality aluminum alloy hand screws securely fasten the viewfinder. The nylon-coated screw tips effectively prevent scratches on the viewfinder.
The hand screw is made of high-quality aluminum alloy and is securely fastened. The tip of the screw is made of nylon, which effectively prevents scratches on the viewfinder.
Made of aluminum alloy, it weighs only 168.45g and has almost no effect on the primary mirror, making it easy to take photos.
The SVBONY SV116 guide scope hoop is compatible with 43mm to 70mm telescope tubes, guide scopes, and small-sized astronomical OTAs.
Manufactured with CNC machines
CNC machine tools focus on stability, speed and accuracy to produce ultra-efficient precision parts.
Our products are manufactured using CNC machine tools, ensuring excellent workmanship and durability for safe use.
Adjustment screw
The 12mm adjustment screw is large and easy to grip and turn. The six-point screw makes it easy to fix the guide scope's direction and secure it firmly, improving connection stability.
Compact at 70mm, it's very convenient to carry and store.
Compatible models
The inner diameter of this product is 70mm and can be reduced to a maximum of 43mm. It is suitable for telescope tubes with outer diameters between 43mm and 70mm, guide scopes, and small-sized astronomical OTAs. It has a wide range of uses.
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The bracket has two M6 screw holes on each end, the middle hole of which is UNC 1/4-20, and two slightly larger M8x1.25 screw holes on either side of the middle hole, which are convenient for adjusting the ring mounting position.
Ideal for astrophotography.
specification:
Model number: SV116
Inner diameter: 70mm
Adjustable width: 43mm-70mm
Thread diameter: 12mm
Hoop ring thread: M5
Bracket thread: M8 UNC1/4-20 M6
Weight: 168.45g
Package:
2 x Sterling Hoops
1x Viewfinder Mounting Bracket
6 x Nylon fixing screws
[SVBONY SV116 Guide Scope / Finder Rings & Mounting Bracket — Key Highlights]
●Wide Compatibility (43–70mm)
Supports guide scopes and finders with tube diameters from 43mm to 70mm, making it suitable for a wide range of small to medium-sized instruments. Offers excellent compatibility with many telescopes, ideal for astrophotography guiding.
●Durable Metal Construction & CNC Precision
Both the rings and bracket are made of sturdy metal. Thanks to CNC machining, the parts feature high precision, minimizing wobble or distortion when mounted and ensuring stable performance even during long-exposure imaging.
●Protective Knobs & Screws
Adjustment screws come with large, easy-to-grip knobs, making them convenient to operate even with gloves on. In addition, the screw tips are lined with protective materials such as nylon (Teflon), helping prevent scratches on the guide scope body.
●Multiple Mounting Options
The bracket includes a dovetail (Vixen-style) bar for standard finder base slide-in mounting. The central section is equipped with a 1/4""-20 screw hole, both sides feature M8×1.25 threads, and additional M6 through-holes are provided. This allows versatile attachment to dovetail plates and universal mounts.
●Optimized for Astrophotography
Ensures parallel alignment between the main optical tube and the guide scope, enhancing the accuracy of fine corrections (e.g., with an autoguider). Reduces tracking errors and helps keep stars sharp without trailing.
●Refined Appearance & Finish
Features a smooth surface finish and high-quality coating. When paired with the main telescope, it provides a unified look and premium feel, offering both functional performance and a sense of ownership satisfaction.
●Lightweight & Compact
Designed to maintain strength while minimizing unnecessary weight, improving portability. Helps preserve telescope balance, making it suitable even for portable observing and imaging setups.
[Summary]
The SVBONY SV116 is an ideal accessory for those who want to mount guide scopes and finders securely and precisely on their telescopes. With its wide 43–70mm compatibility, multiple mounting options, protective screws, and robust CNC-machined metal construction, it offers thoughtful features throughout. This ensures reduced tracking errors in astrophotography, allowing sharp capture of star trails and fine details. For those seeking to make their telescope setups more professional and reliable, it represents an outstanding cost-effective choice.
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