SV503 102 ED F7 Refractor Telescope Visual Set for Astronomy
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Key Features
102 mm extra‑low dispersion refractor delivers sharp, high‑contrast celestial views with minimal chromatic aberration
Includes diagonal, finder scope, handle bar and dovetail base for a ready‑to‑use observing setup.
Rack‑and‑pinion focuser with fine control enables accurate focusing for detailed views.
SV182 6×30 right‑angle correct‑image finder makes locating targets easier and more intuitive.
f/7 focal ratio and large aperture provide bright, detailed observation of planets and deep‑sky targets.
This SV503 telescope combination set includes a 102mm ED F7 refractor telescope, a SV188P 90 degree diagonal mirror, a SV182 6x30 right-angle correct-image optical finder scope, a SV211 203mm saddle handle bar and a universal dovetail base. It is a suitable telescope visual set for astronomy.
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SVBONY SV503 Refractor 102mm ED F7 Telescope Visual Set for Astronomy
SVBONY SV503 Refractor 102mm ED F7 Telescope Visual Set for Astronomy
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| Brand | SVBONY |
| Model | SV503 102F7 ED Astronomy Telescope |
| Type | Refractor |
| ED Glass | S-FPL51 |
| Coating | SMC |
| Aperture | 102mm / 4.01-Inch |
| Focal length | 714mm |
| Focal Ratio | f/7 |
| Type of Focuser | RAP (Rack and Pinion) |
| Gear Reduction | 1:10 Fine movement |
| Resolving capacity | 1.17" |
| Limit value | 12.1 |
| Light gathering capacity | 212x |
| Max. Useful magnification | 204x |
| Tube weight（with rings） | 5.5kg |
| Tube outer diameter | 121mm |
| Tube material | Aluminum |
| Back Focus Length | 101.9mm |
| OTA Length | 630mm |
| Dovetail & Ring | Yes |
| Brand | SVBONY | Brand | SVBONY |
| Model | SV188P | Model | SV182 |
| Size | 1.25inch | Lens Diameter | 30mm |
| Optical Design | Mirror Diagonal | Focal Length | 120mm |
| Coatings | Dielectric | Magnification | 6x |
| Reflectivity | dielectric 99% coating for bright images | Eye Relief | 15mm |
| Material | Aluminum Alloy | Exit Pupil | 5mm |
| Filter Threads | M28.5*0.6 | Field of View | 7.5° |
| M4 Set Screws | Yes | Lens coating | FMC |
| Outer Connection(Lens Sided) | Barrel 1.25inch | Image Orientation | Correct-image |
| Inner Connection(Lens Sided) | Thread M28.5x0.6 | Reticle | Single crosshair |
| Inner Connection(Eyepiece Sided) | Clamp 1.25inch | Adjustment System | Spring-loaded X-Y |
| Reflection Surface | Dielectrically Coated | Objective | Achromatic 2-Element |
| Image Orientation | Erect Image, Mirror Inverted | IIIuminated | No |
| Thickness of Mirror | 11mm | Adjustable focus | Yes |
| Net Weight | 125g / 4.41oz | Viewing angle | 90 Degree |
| Net Weight | 295g / 0.651b / 10.41oz |
| Brand | SVBONY | Brand | SVBONY |
| Model | SV211 | Model | W2370A |
| Color | Red | Length | along the 34mm |
| Material | 6061T Aluminums | Width of internal slot | 4.2mm |
| Length | 203mm | Horizontal length of internal slot | 36.5mm |
| Width | 42mm | Vertical length of internal slot | 36.5mm |
| High | 39mm | Can be fixed | M3-M4 screw |
| Net Weight | 161.5g/5.7oz | Color | Black |
| Fit For OTA | SV503 102mm f/7、SV550 122mm f/7 | Weight | 41g |
| Distance Between Two M6 Screws | 187mm | L*W*H | 45*40*25mm |
Telescopes
SV503_User_Manual
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