SVBONY SV503 Refractor Telescope with Built-in Field Flattener, 70mm F6.78 Extra Low Dispersion Achromatic Refractor OTA, Telescope for Adults, for Astrophotography Visual Astronomy
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Availability:
In Stock.
Arrives
Thursday, May 7
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Size: 70 mm F6.78 FF
Features
- Outstanding flat-field correction; built-in field flattener of SVBONY SV503 telescope eliminates field curvature; offering a flat; wide view; Observers can explore the universe freely; unhindered by edge blur or distortion
- F/6.78 and a generous 70mm aperture; SVBONY SV503 telescope delivers bright; sharp images of distant galaxies; nebulae; and star clusters; Its flat-field refractor design minimizes chromatic aberration; ensuring true-to-life colors
- Self-Flat-Field Design; Eliminates the need to purchase a separate field flattener; When directly connected to any imaging accessory; it achieves optimal shooting state immediately after focusing; ensuring convenience and efficiency
- Unparalleled clarity; svbony sv503 70mm f/6.78 telescope equipped with ED glass offers unparalleled clarity by significantly reducing chromatic aberration
- Eliminate glare for crisper views; SVBONY SV503 refractor telescope acts as a precision tool to block stray light; reducing glare and reflections that can degrade image quality
- Seamless precision; the dual-speed focuser on your SVBONY SV503 astronomical telescope delivers unmatched control; allowing you to switch between rapid; coarse adjustments and ultra-fine tuning with a simple twist
- Rock-Solid Stability; secure your gear for vibration-free views; the telescope mounting clamp ensures unwavering stability by firmly gripping your SVBONY telescope; eliminating wobble and vibrations during use
- Precision engineered durability; the 2-inch aluminum CNC components in your SVBONY SV503 refractor telescope deliver unmatched precision and resilience
- Package includes; SVbony SV503 70mm f/6.78 telescope; 2 inch to 1.25inch adapter
Brand: SVBONY
Model Name: F9359E
Optical Tube Length: 474 Millimeters
Eye Piece Lens Description: Barlow
Objective Lens Diameter: 70 Millimeters
Telescope Mount Description: Altazimuth Mount
Product Dimensions: 12.52"D x 9.25"W x 6.69"H
Focus Type: Manual Focus
Finderscope: No
Item Weight: 2.69 Kilograms
Eye Piece Lens Description: Barlow
Mount: Altazimuth Mount
Focus Type: Manual Focus
Finderscope: No
Compatible Devices: Astronomy camera, Eyepiece, Finderscope, Guide telescope, Zenith telescope
Coating: Full Broadband Anti-Reflection Coating
Focal Length Description: 474mm
Field Of View: 1.08 Degrees
Additional Features: ED Glass
Optical-Tube Length: 474 Millimeters
Objective Lens Diameter: 70 Millimeters
Item Dimensions D x W x H: 12.52"D x 9.25"W x 6.69"H
Item Weight: 2.69 Kilograms
Brand: SVBONY
Model Name: F9359E
Manufacturer: SVBONY
Manufacturer Part Number: CAF9359E
Model Number: CAF9359E
Built-In Media: 1 X 2-inch to 1.25-inch adapter &1.25-inch plastic dust plug, 1 X Dovetail plate, 1 X Metal clamp, 1 X Metal objective lens cover, 1 X SVBONY SV503 70mm F6.78 OTA
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, May 7
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: 70 mm F6
I purchased the SVBONY SV503 70ED refractor telescope last summer, but due to weather (two hurricanes!) I was unable to try it out until late November. It performed beautifully! The first few targets were the Pleiades, Andromeda, and the North American Nebula. All came out fantastic. The FPL51 glass in the objective lens approaches the performance of APO scopes that are over twice the price. The dual-speed focuser is super smooth and it's easy to get perfect focus with a Bahtanov mask. The draw tube length of 90mm offers a wide range of distances for achieving focus with various spacers, filters, or the reducer. It also has markings (down to the millimeter) on the side of the draw tube to help get the focus back after making changes to the optical chain. If you have recorded the distance mark from a previous setup, going back to that setup is much easier to get the focus close, so that the time needed when doing that kind of a change is greatly reduced. The extendable dew shield keeps out dew and stray light and stays in place without getting stuck. Overall, the quality of the build is excellent. I also purchased the 0.8x reducer for this scope's bigger brother, the SV503 80ED and it works great with this 70mm f/6 to reduce it down to an f/4.8 focal ratio for a slightly wider field of view. I recommend the reducer with this scope. It is essential if you wish to capture all of M-31 (Andromeda) or M-45 (The Pleiades) in a single frame. As far as optical quality, images are sharp and bright. Even though it's not an APO, I didn't notice any significant blue or purple halo's around bright stars. They weren't completely eliminated, but the very minor ones that did show up were hardly visible or were easily removed via processing. I highly recommend this telescope for astrophotography.
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Reviewed in the United States on May 17, 2025 by P. Smith
Size: 102 mm F7
Buetiful telescope and I got it 3 days early. It's all metal and glass and the only thing that feels cheap is the price tag. It's heavy. So you're going to need a real mount for this beast. A little star tracker is likely not going to cut it when just the OTA is 8lbs and putting this thing on a tripod would be criminal. This thing is for gazing at DSOs, not the moon and you'll lose the bulk of its capabilities putting it on a tripod. You'll want an EQ mount. One that can track with at least 15-20lbs on its back. Great optics, mind-blowing price. SV is going to make the entire industry work for their bread. The fit and finish on this thing is akin to lab grade. Great glass and the focuser is awesome. Well made. Easy to mount. This isn't a toy scope. This is a legit instrument and it looks awesome on my Heq5. Now I need stickers of a flaming mustang running through stars. Because this little pony is an SVBony. We should brag about it.
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Reviewed in the United States on April 11, 2026 by O Penero
Size: 80 mm F7
I purchased the SVBONY SV503 Telescope in Jan 2024 and have been using it for about 9-10 months now, and it has exceeded my expectations in every way. This telescope is a fantastic choice for both visual observation and astrophotography. Though I have primary used it for astrophotography. Here are some of the pros and cons I’ve experienced: Pros: Exceptional Optics: The 80ED F7 OTA with a 560mm focal length provides stunningly clear and bright images. The 80mm aperture allows for excellent light gathering, making it perfect for both planetary and deep-sky observations1. Compact and Portable: Despite its powerful capabilities, the SV503 is lightweight and easy to transport. This makes it ideal for stargazing trips and quick setups2. High-Quality Build: The telescope is well-constructed with durable materials. The dual hinged mounting rings and Vixen style dovetail make it easy to mount on various EQ or AzAlt mounts2. Versatile Use: Whether you’re a beginner or an experienced astronomer, this telescope is user-friendly and versatile. It’s great for capturing high-resolution images of celestial objects and for general sky watching1. Value for Money: Given its features and performance, the SV503 offers excellent value for its price. It’s a great investment for anyone serious about astronomy3. Cons: Limited Accessories: The telescope doesn’t come with a lot of accessories, so you might need to purchase additional eyepieces or a diagonal separately to get the most out of it4. Manual Focus: While the manual focus is precise, it can take some time to get used to, especially for beginners. An electronic focuser would have been a nice addition5. Overall, the SVBONY SV503 Telescope is a remarkable piece of equipment that delivers exceptional performance for both viewing and astrophotography. I highly recommend it to anyone looking to explore the night sky with clarity and detail
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Reviewed in the United States on October 1, 2024 by nid