- The popular SV503 80ED F7 telescope refractor will provide the best optical quality, whether you use it for deep-Sky objects or planets, visual or photography.
- The compatible SV193 0.8x field flattener & focal reducer will increase the field of view and improve the image flatness， which is essential for deep-sky photography.
- The SV165 30mm F4 guide scope is very mini and easy to use, widely used in different Astro-observations.
- The side dovetail slot provides you with an easy way to install the finder.
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SV503 Package Deal
As someone new to astrophotography, I'm quite pleased with my choice of the SV503 80mm scope package from SvBony.
Here's my current setup:
SV503 Scope
SV193 Reducer/Flattener
SV165 Guide Scope
Sky-Watcher AZ-GTi Mount
Canon T3/1100D DSLR
ZWO ASI120MM-S Monochrome CCD
MacBook Pro (16-inch, 2019)
KDE Kstars/Ekos
The SV503 is pushing the load limit on the AZ-GTi mount, but everything is working together smoothly. Last night, with active guiding in Ekos using the ZWO CCD, I was able to capture 120-second exposures of the Horsehead Nebula and get perfect pinpoint stars in the field one after another. I'm excited, and looking forward to many productive sessions while I explore and learn the heavens.
| Product Name | SV503 70F6 ED Astronomy Telescope | SV503 80F7 ED Astronomy Telescope | SV503 102F7 ED Astronomy Telescope |
| Type | Refractor | Refractor | Refractor |
| ED Glass | S-FPL51 | S-FPL51 | S-FPL51 |
| Coating | SMC | SMC | SMC |
| Aperture | 70mm / 2.75-Inch | 80mm /3-Inch | 102mm / 4.01-Inch |
| Focal length | 420mm | 560mm | 714mm |
| Focal Ratio | f/6 | f/7 | f/7 |
| Type of Focuser | RAP (Rack and Pinion) | RAP (Rack and Pinion) | RAP (Rack and Pinion) |
| Gear Reduction | 1:10 Fine movement | 1:10 Fine movement | 1:10 Fine movement |
| Resolving capacity | 1.97" | 1.5" | 1.17" |
| Limit value | 11.3 | 11.6 | 12.1 |
| Light gathering capacity | 100x | 130.6x | 212x |
| Max. Useful magnification | 140x | 160x | 204x |
| Tube weight | 3.35kg | 3.95kg | 5.5kg |
| Tube outer diameter | 88mm | 121mm | |
| Tube material | Aluminum | Aluminum | Aluminum |
| Back Focus Length | 90mm | 90mm | 101.9mm |
| OTA Length | 318mm | 465mm | 630mm |
| Dovetail & Ring | Yes | Yes | Yes |
| Dovetail Length | 150mm | 137mm | 200mm |
| Model | SV193 | |||
| SKU | W9152B | W9152D | ||
| Back focus | 55mm | |||
| Barrel size | 2-inch | 2-inch | ||
| Threads Standard | M48*0.75 | M48*0.75 | ||
| Lens Structure | 3-Elements/2Groups | 3-Elements/2Groups | ||
| Lens Coating | FMC | FMC | ||
| Blackened Lens Edges | Yes | Yes | ||
| Net Weight | 164g / 5.78oz / 0.36lb | 177g / 6.24oz / 0.39lb | ||
| Model | Svbony SV165 |
| Aperture | 30mm |
| Focal length | 120mm |
| Focal Ratio | F4 |
| Hoop and Mount | Yes |
| Back Focus Length | 45mm |
| Mount | UNC 1/4-20 |
| Material | Aluminum |
| Surface technology | Sandblasting oxidation |
| 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 |
1. The popular SV503 series refractor will provide the best optical quality, whatever you use it for Deep-Sky Object or Planets, visual or photography;
2. The compatible SV193 reducer will increase the field of view and improve the image flatness， which is essential for deep-sky photography;
3. The SV165 guide scope is very mini and easy to use, widely used in different Astro-observations;
4. The side dovetail slot provides you with an easy way to install the finder;
5. This combination will provide more choices among different ways to use your SV503 telescope.
Applicable Accessories
US$ 34.99 ~ US$ 69.99
_md.jpg "SV135 Zoom Eyepiece 1.25inch 7mm to 21mm 57°-40° Field of View for Astronomical Observation")