Svbony SV503 102F7 Telescope Refractor, ED Lens Achromatic OTA, Extra Low Dispersion, Dual Speed RAP Focuser, Telescope for Deep Sky Astrophotography and Visual

Price: £519.99
(as of Jun 19, 2026 07:06:21 UTC – Details)

Product Description

Svbony SV503 the good telescope for your backyard

The Svbony SV503 telescope has a 102mm aperture and a 714mm focal length. The objective lens adopts a spacer doublet lens structure consisting of SFPL-51 ED lens and lanthanum glass, which achieves good color correction, ensuring true color and high-contrast imaging.

S-FPL51 ED Glass

Its S-FPL51 ED glass minimizes color distortion for razor-sharp images and the most realistic colors.Super fully multi coated lens ensures high light transmission and bright clear image.

Dual Speed Focusing

Dual-speed focuser provides ultra-precise adjustment, making the focusing process smoother.2” hybrid RAP focuser and 1:10 gear ratio can reach an amazing 1.17 angular seconds resolution to let you see finer details either in astronomy or scenery viewing.

Balance space requirements and optical performance to improve imaging quality

1 90mm Back Focus

2 2″-1.25″ Attachment Ring

3 Rotate 360 degree

4 Strong and Durable

SV503 Telescope OTA Combination

SV503 102mm refractor telescope delivers stunningly sharp views of planets, galaxies, and nebulas for deep-sky observation. Its F7 focal ratio balances wide-field views with high magnification for both visual stargazing and astrophotography,helping you explore beautiful astronomical landscapes.

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Price

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£55.99£55.99

£559.99£559.99

£47.99£47.99

£49.99£49.99

£111.99£111.99

£139.99£139.99

Model

SV705C

SV226

SV555

SV135

SV165

SV240

SV260

Feature

IMX585 Color CMOS

M48x0.75/M28.5×0.6(female)

44 mm full frame

7-21mm focal length

Auto Focus

Blocking ≥OD4

OD4

Feature

ST4 guiding por

Lock screw

F22 to F4.5

57°-40° eye relief

30mm Aperture

Resistant of Bortle 8

Bortle6

Feature

Back illumination structure

M42-M48 adapter

Single speed focus

FMC

FMC

High transmittance

Emission Reflection Nebula

Application

Deep Sky Photography

Deep Sky Photography Visual

Petzval lens structure

18-16.3mm Eyepiece

Astronomical Observation

Deep Sky Photography Visual

StarField Photography

Specification

Type Refractor Type of build Doublet air spaced achromatic Glass Grades S-FPL51 Aperture 102 mm/4.01 inch Focal length 714 mm Aperture ratio f/7 Resolving capacity 1.17″ Limit value 12.1 Light gathering capacity 212x Max useful magnification 204x Tube weight 3.95kgs (8.6lbs) Tube outer diameter 121mm Tube material Aluminium Type of build RAP (rack and pinion) Rotating Yes Gear reduction 1:10 Fine movement

Achromatic refractor; SFPL-51 ED lens; Lanthanum glass and spaced doublet lens structure ensure particularly true color and high-contrast image
Crisp Image; FMC ultra wide band multi-layer coating technology; 102mm aperture optics and retractable lens hood deliver bright wide-field images with sharp resolution
Precise focusing; The rack and pinion dual speed RAP focuser with 1:10 gear ratio provides optimal focus control with no backlash or image shift
Humanization design; Focusing wheel 360° rotation can move from right to left that is perfect for astrophotography; 2 inch to 1.25inch adapter can connect with 1.25in or 2in accessories
Package includes; 102mm refractor OTA; 2inch to 1.25inch adapter; metal hoop and dovetail; objective focuser wheel cover; dust cover