Product Detail
SVBONY SV550 APO Triplet Refractor OTA 80 F6 Astronomy Telescope Set for Deep Space Astrophotography
- SV550 80mm f/6 fully multicoated triplet apochromatic optics using an ED center element;
- A dual-speed 2.5" rack-and-pinion focuser with 10:1 ratio fine focusing,realizes reliable zero offset image focusing;
- Retractable lens shade/dew shield;
- Dual hinged split tube rings with a 180mm Vixen-style dovetail.
APO Structure
Apochromatic triplet uses a series of three lenses. It provides better correction of aberration and significantly reduces dispersion. It reduces chromatic aberration, and it corrects for two wavelengths to reduce spherical aberration. The apochromatic triplet objective provides high-quality, sharp and high-contrast images.
Elimination of Stray Light
Blackened inside and knife-edge baffle are for reduction of stray light and improvement of image contrast.
Why should SV209 be used together with SV550？
SV209 1.0x Flattener Corrects the Field for Astrophotography M63x1 Connection Black.
It is a special flat field mirror developed for SV550 80F6 OTA, which can effectively improve the image quality of SV550 OTA edge field, while maintaining the focal length and focal plane position of the Objective lens. The sv209 is equipped with M63 extension cylinder and M48 adapter ring to ensure that the rear intercept of the flattener is the astronomical conventional 55mm length.
| Brand | SVBONY |
| Model | SV550 |
| Aperture | 80mm |
| Focal Length | 480mm |
| Focal Ratio | f/6 |
| ED Glass | FPL51 |
| Telescope Type | Refractor |
| Resolution | 1.45 arc seconds |
| Coatings | FMC |
| Limiting stellar magnitude | 11.6 |
| Lens design | Apochromatic |
| Dovetail plate length | 150-175mm |
| Barrel weight | 2900g |
| Mirror Brief Size | 377.8mm |
| Tube material | Aluminum |
| Focuser | 2.5'' rack-and-pinion,dual speed(1/10) |
| Load bearing of focuser | 5kg |
| Tube Outer Diameter | 103mm |
| Tube Travel | 80mm |
| Dew shield type | Retractable |
| Additional thread | M63×1 female thread for photo adaptions |
| Net weight | 3750g |
| Gross weight | 3850g |
| Package size | 440x220x210mm |
| Brand | SVBONY |
| Model | SV209 |
| Additional Thread | M63x1 female thread for photo adaptions |
| Connection at Telescope Side | M63x1 male thread |
| Connection 1 at Camera Side | M63x1 thread female - working distance 103 mm |
| Connection 2 at Camera Side | M48x0.75 male thread - working distance 55 mm or 91.5 mm |
| Fully Illuminated Field | 45 mm（Support Full Frame Sensors） |
| Number of Elements | 2 lenses |
| Factor | 1.0 - no change of focal length to the focal plane |
| Coating | FMC |
| Diameter of the Housing | 67mm |
| Length | 87.5 mm without the male thread |
| Brand | SVBONY |
| Model | SV210 |
| Product Name | M63 CAA 360° Rotator Camera angle adjuster |
| Extension thickness | 20.7mm |
| Fit for | SV550 80F6 |
| Locking Screw | M4 |
| Positioning lock Function | Yes |
| Male Thread | M63x1 |
| Female Thread | M63x1 |
| Length of Male Thread | 8mm |
| Length of Female Thread | 9mm |
| Material | 6061T |
| Color | Black |
| Net Weight | 91.2g/3.22oz |
| Brand | SVBONY |
| Model | SV211 |
| Suitable OTA | SV550 80 APO, SV503 80ED |
| Material | 6061T Aluminums |
| Color | Red |
| Length | 135mm |
| Width | 42mm |
| Height | 39mm |
| Net Weight | 136g / 4.8oz |
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Feature
- 1. Functional parameters overall part specification 5 political serial number specification parameters objective lens aperture 80mu;
- 2. Lens face type 1 / 8 wavelength;
- 3. The three piece APO compound achromatic objective lens structure is adopted to significantly improve the image quality of the captured image (increased by 15.8% according to the calculation of the spectrometer);
- 4. The 2.5-inch magnesium alloy double speed toothed focusing seat is adopted to reduce the vignetting of connecting the full frame camera and reduce the load weight of the support platform;
- 5. Multi process extreme extinction: multi-channel light bar extinction inside the focusing seat + inner wall of the lens barrel;
- 6. Special flat field mirror synchronous listing (optional accessories sold separately);
- 7. Obviously reduce the edge dispersion of the captured image and improve the image quality;
- 8. Improve the efficiency and compatibility, and reduce the vignetting phenomenon of connecting the full frame camera;
Tips: (2 "to 1.25" adapter ring-W2811C can be selected if 1.25 "eyepiece is connected.)
The Packaging of SV550 80 OTA Includes
- 1. 2-inch focal length connector for connection
- 2. compatible accessories
- 3. selector fixed platform
- 4. fastening ring
- 5. Vixen fixing plate
- 6. two speed focus
- 7. lens cover
The Image Captured With SV550 80 Telescope 
I enjoy viewing, no astro-photography as of yet.. but I've seen very nice pics from this 80mm triplet online & read good reviews. I ordered the package mid-Feb w the OTA/tube-rings, soft case, 6x30mm finder/bracket & the 1.25" mirror diagonal w red anodized sides. The dew shield fits snug & moves free w no slop. Focuser is 10:1 ratio heavy duty, well built & smooth. The finder shoe/dovetail bracket may moved from one side to another 10 or 2 clock position.. also has sub-positions to fix it on either side w machined grooves on the housing. The paint, fit & finish are all superb, no flaws. The optics I tested on 1 good night- Jupiter, the Orion nebula & lastly the moon. I could detect no false color on any object at any time except a slight blue haze before it cooled down outside.. 44deg. Very sharp optics, I used multiple power EP's & a barlow in later. Diffraction rings looked sharp inside of focus, a bit fuzzy outside.. read this could be slight spherical aberration. The details on Jupiter were impressive.. the moons, belts & red-spot neat to see. Overall I'd recommend this little triplet to anyone looking for portability & quality. I mounted it on an AstroTech Voyager alt/az mount I bought years ago.. enjoyable to use in tandem. I'm testing a few other Svbony products soon- relatively newer business since 2018, 7th anniversary - I've been around the hobby for about 30yrs. JB
After owning a SV503 (102mm) for several years, I decided to go for a triplet and little bigger for imaging. I have a tight budget and after some searching I opted for the SV550 (122mm). The SV503 had served me well for several years so it came as no surprise to find the SV550 also to be of very solid build and very smooth operation. The first images it produced with an ASI071MC Pro gave nice sharp stars with no evidence of distortion close to the edges. It has only been a few days since its arrival but already I am very impressed and have no regrets about the purchase. An added bonus is the fact that it arrived at my home nearly a week ahead of the predicted date. I look forwards to many years of astrophotography with it.
I'm not 100% sure why I bought this telescope. I was going to buy the SV503 80mm F7, but when I came to this website, I saw the SV550 and something told me to get it instead. It's F6, which is pretty fast for such an inexpensive telescope. It arrived a few days after ordering- again, surprising since it came from China. The box was heavy- much heavier than expected. I've owned "cheap" 80mm ED refractors in the past. Let me first say, this telescope might be inexpensive, but it certainly isn't cheap. It is very solid, very rigid, very well made. I got the optional rotator and field flattener as I am using it for imaging. Stars have been spectacular edge to edge. My stars are coming in at 1.2 FWMH during electronic focus! Pretty amazing. I would highly recommend this telescope to anyone, beginner or experienced user. I don't even own an EP, so how it does visually, I don't know. But as an astrograph, it works amazingly well. I look forward to many years with this scope.
This is a bargain 80mm triplet meant for astrophotography. Produces excellent images with the right camera. If you want to make it faster and wider field of view for your camera, get the reducer that is made for the 80mm doublet, it works 100%, just like the dedicated flattener for the triplet. Highly recommended.