| Product Name | SVBONY 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 | 5.5kg |
| Tube outer diameter | 121mm |
| Tube material | Aluminium |
| Back Focus Length | 101.9mm |
| OTA Length | 630mm |
| Dovetail & Ring | Yes |
| Dovetail Length |
200mm |
1. The appearance of the telescope is baked with high-end fine-grained paint, with exquisite appearance and delicate feel
2. The objective lens features an S-FPL51 extra-low dispersion glass ED element, which eliminates chromatic aberration. This results in the best colour correction for an ED doublet lens
3. The lens adopts optical processing and low polishing technology, which is carefully carved
4. The deceleration ratio of the two-speed 2'' toothed focusing seat is 1:10, which makes it easy to achieve accurate focus
Also available are the following
SV193 Focal Reducer / Flattener
Multi-Function Dovetail Slots for Astronomy Telescope
SV165 Mini Guider Scope 30mm/120mm F4
