SVBONY SV503 80ED Refractor Telescope Kit
- Objective Lens Diameter: 80 mm
- Mount: Altazimuth Mount
- Focal Length Description: 4.7 inches
- Focus Type: Fixed Focus
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A compact, fixed focus 80mm scope for casual sky watching. The small review count means you're relying mostly on the specs, not a track record.
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ASIN: B0FGQ3Z7TFModel: SV503Category: Telescopes
Overview
An 80mm objective, fixed focus telescope from Svbony built for straightforward setup rather than manual focus adjustment. Packed dimensions run about 20.5 x 8.07 x 7.87 inches, sized as a compact travel scope rather than a large observatory instrument.
Svbony markets this as a fixed focus scope, meaning there is no focus knob to dial in, so sharpness depends on factory calibration rather than user adjustment. The listing carries only a handful of ratings, so the 4.7 average reflects a small sample rather than a settled track record. No seller description or review text was provided to expand on optics quality or included accessories.
- 80mm objective lens
- Fixed focus design
- Packed size about 20.5 x 8.07 x 7.87 in
- Svbony brand telescope
Who it's for
Fits beginners who want a grab and go scope without learning to focus manually, and casual stargazers who prioritize simplicity over adjustable sharpness. Less suited to anyone wanting to fine tune focus for planetary detail or astrophotography.
Pros and cons
- No focus dial to fuss with before viewing
- Compact packed size for storage or travel
- Fixed focus removes manual sharpness control
- Very few ratings to judge real world consistency
- No description or accessory details provided
Performance notes
With a fixed focus design, image sharpness is set at the factory rather than tuned per user, which simplifies setup but removes the ability to correct for eyesight or fine tune distant targets. The 80mm objective lens is the main light gathering spec available; no eyepiece, magnification, or mount details were provided to judge overall viewing performance.
Specifications
| Brand | Svbony |
|---|---|
| Model | SV503 |
| Dimensions & fit | |
| Objective Lens Diameter | 80 mm |
| Focal Length Description | 4.7 inches |
| Opticaltube Length | 22 inches |
| Item Dimensions D X W X H | 20.5 × 8.1 × 7.9 inches |
| Compatibility & installation | |
| Mount | Altazimuth Mount |
| Compatible Devices | Astronomy Cameras, Guidescopes, Planetary Camera, Telescope Filters |
| Warranty & support | |
| Warranty Description | 1 Year |
| Other details | |
| Focus Type | Fixed Focus |
| Finderscope | Right-Angle Correct-Image Finder |
| Additional Features | Extra-low dispersion glass, dual-speed focuser, zoom eyepiece, dielectric mirror star diagonal, universal dovetail base |
| Builtin Media | 1 X SVBONY SV135 Zoom Eyepiece, 1 X SVBONY SV182 Finderscope, 1 X SVBONY SV188P Dielectric Mirror Star Diagonal, 1 X SVBONY SV503 80mm ED Telescope, 1 X SVBONY Universal Dovetail Base |
| Eye Piece Lens Description | Plossl, Fully Multi-Coated |
| Zoom Ratio | 7x-21x |
Frequently asked questions
Does the Svbony F9359B telescope have adjustable focus?
No. It uses a fixed focus design, so there is no focus knob to adjust once assembled.
What size is the objective lens on this Svbony telescope?
The objective lens is 80mm.
How big is the telescope when packed?
Listed packed dimensions are about 20.5 x 8.07 x 7.87 inches.