Set Includes:
- SV503 70ED F6 refractor, SKU: F9359A
- SV182 6x30 Straight-Through Metal Finderscope, SKU: W9141A
- SV158 75mm Extension Tube 2 inch, SKU: W9119A
- Universal Dovetail Slots, SKU: W2370A
Note: The SV503 70ed is designed with f/6 focus ratio. When reducing the focus further, the image quality will not be guaranteed. This is why 0.8x flat field is not available. If you need flat field for telescope, we suggest choosing SV503 80 f/7 refractor.
Special offers and product promotions
_md.jpg "product")
SVBONY SV503 70F6 ED Doublet Astronomy Photography Telescope
| Product Name | SV503 70F6 ED Astronomy Telescope |
| Type | Refractor |
| ED Glass | S-FPL51 |
| Coating | SMC |
| Aperture | 70mm / 2.75-Inch |
| Focal length | 420mm |
| Focal Ratio | f/6 |
| Type of Focuser | RAP (Rack and Pinion) |
| Gear Reduction | 1:10 Fine movement |
| Resolving capacity | 1.97" |
| Limit value | 11.3 |
| Light gathering capacity | 100x |
| Max. Useful magnification | 140x |
| Tube weight | 2.22kg |
| Tube outer diameter | 88mm |
| Tube material | Aluminium |
| Back Focus Length | 90mm |
| OTA Length | 318mm |
| Dovetail & Ring | Yes |
| Dovetail Length | 150mm |
| Model | SV182 |
| Lens Diameter | 30 mm |
| Focal Length | 120 mm |
| Magnification | 6x |
| Eye Relief | 15mm |
| Exit Pupil | 5mm |
| Field of View | 7.5° |
| Lens coating | FMC |
| Objective | Achromatic 2-Element |
| Net Weight | 225g / 0.49lb / 7.92oz |
| Model | W9119A |
| Length | 75mm |
| Dimensions (mm) | ɸ59*75mm |
| Material | Aluminum Alloy |
| Color | Black |
| Size | 2'' |
| Model | W2370A |
| Length | along the 34mm |
| Width of internal slot | 4.2mm |
| Horizontal length of internal slot | 36.5mm |
| Vertical length of internal slot | 36.5mm |
| Can be fixed | M3-M4 screw |
| Color | Black |
| Weight | 41g |
| L*W*H | 45*40*25mm |
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;
5. If the 70ED is matched with a large chip, A possible way is to: The SV193 increases the field of view of the shot, which is sufficient for most DSOs. The stacked image edges may need to be cropped in the post-process to improve image quality.