- 102mm objective lens diameter and f/7 focal ratio telescope OTA; large objective lens brings more lights into the scope body and you will get more bright and clear image;
- Doublet air spaced achromatic S-FPL51 ED glass provides you less chromatic aberration image;
- Crisp Image; ultra wide band multi-layer coating technology; 102mm aperture optics and retactable lens hood deliver bright wide-field images with sharp resolution;
- 90mm back focus; it comes with dual focus rack and pinion focuser with focus knob cover; you can get precious focus easily;
- Package includes; 102mm refractor OTA; 2 inch to 1.25inch adapter;OTA rings and dovetail; objective focuser wheel cover; a package with die-cut foam insert.
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SV503 Astronomical Telescope 102mm F7 ED Refractor OTA
ED Extra Low Dispersion Glass
Dual-speed Rack & Pinion Focuser
1.17 Arc-second Resolution
Compatible With 1.25"/2" Adapters
OTA Rings With Dovetail
A telescope that deserves a good reputation
Hey guys, I recently got a new refractor. The Svbony SV503 ED 102/714. My first refractor with ED glass. In terms of quality, the whole telescope comes across at a high level. It is built solidly and just feels valuable.The dual-speed-RAP-focuser is my highlight! My God! It glides so nice and soft ... now focusing is always a pleasure. Nothing grinds when focusing and there is also no silicone grease that sticks to the fingers. A rotating focuser and ring clips add value to the telescope. But even such simple parts as the screws are milled very filigree and can be moved very smoothly. The lens cap is made of metal and sits well on the dew cap, which can also be moved. That reduces the dimensions during transport. Without tube rings, the tube weighs 3353 g.
The ED glass makes a very nice, clear image. Chromatic aberrations only come to light at high magnification and in certain light situations. Finally I can make observations during the day (with low power eyepieces) without disturbing chromatic aberrations. Just yesterday I was watching the moon and I didn't notice any chromatic aberrations! Not even with my Baader Classic Ortho 6mm! Maybe it was because of the position of the moon... I don’t know… All I can say: Svbonys ED-Glas is in no comparison to an achromatic lens! And the negative? It's just a shame that the Svbony doesn't have a 120mm opening. I would buy again!
| 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（with rings） | 5.7kg |
| Tube outer Diameter | 121mm |
| Tube Material | Aluminum |
| Back Focus Length | 101.9mm |
| OTA Length | 630mm |
| Dovetail & Ring | Yes |
| Dovetail Length | 200mm |
| product Dimensions | 690mm*210mm*250mm |
Features
- 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 color 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
The Real Shot Image by SV503 102mm OTA
The Bundle Set of SV503 102mm by Our Clients
Applicable Accessories
US$ 34.99 ~ US$ 69.99
