- 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
Best choice for both visually observing and astrophotography
The SV503 telescopes are awesome for this price-range. And especially the 102mm is the best choice for both visually observing and astrophotography.
Excellent ED doublet refractor
I own this 102ED myself, and I am planning to add a mono camera and filters ouch instead of getting a triplet/APO
Suitable for beginner astrophotography
I purchased the 503 80ED last year after having entered into AP and had no idea what a doublet was. I found that the quality was great considering it was my first refractor.
this was the best rig I could afford
This is the exact telescope I use with an ASI2600MC. With a 0.8X FF/FR and a Pegasus Focus Cube, this was the best rig I could afford.
Worth a look as a first scope.
I have the the 80mm version of this scope. I think for the price it's very good. It's not as good as a triplet but the difference is not big, mainly slight halos on bright stars. It's well built and nice to use. I have the reducer for it as well. It's my go to scope and I really like it.
A GREAT FIRST PURCHASE
I bought a SV503 102mm ED as my first ever scope in early 2022. It has proven to be a sturdy and well manufactured piece of equipment that is a pleasure to use for astrophotography. There is no evidence of any fringing or aberration in my images. The focuser is very smooth to use and remarkably stable over a deep-sky photography session. The auto focuser was easily installed as per SVBony's recommended method and handles the task without difficulty. Teamed up with the SV106 guide scope and Phd2 software, the combination produces clear and well contrasted images.
There is some field curvature out near the edges of the images but I am confident that the flattener that I have on order will fix that.
I have to say that I actually much prefer using the SV503 rather than my more recently purchased 8" SCT.
All in all, a great buy..!!
Excellent optics and picture quality
I purchased the SV503 102ed scope and the sv193, 0.8 reducer and just last night had the chance to put it to use. I added the sv503 70mm scope as it's guide scope. Added the ASI1600mm pro camera and after the Horsehead Nebula was in striking distance, I managed to get a few HA shots and then stacked them. Only using 5 images at 5 minute subs, I was blown away at the quality of the picture. Of course, using Narrow band filters there was no CA at all, even still, I was thoroughly impressed and pleased with the quality of the pictures. SVBONY did an excellent job with this scope. There is no place to add a picture here otherwise I would have shared that with you.
The performance for visual astronomy has been great.
I bought the 102 version last month. I'm under Bortle 8 skies, so even my C6 has contrast issues . Yet, the Svbony, under full magnification 200x (using your favorite Baader Zoom and barlow set) at Jupiter and Saturn worked very well.
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