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SVBONY SV501P 70/400 Portable Refractor Telescope

by SVBONY
SKU SV-F9348A
Original price $79.99 USD - Original price $79.99 USD
Original price
$79.99 USD
$79.99 USD - $79.99 USD
Current price $79.99 USD
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  • 70mm Aperture Refractor
  • 400mm Focal Length (f/5.7)
  • 2-Element, 2-Group Objective Lens
  • Includes 20mm Kellner Eyepiece (20x)
  • 45° Correct-Image Prism Diagonal for Terrestrial Viewing
  • Lightweight 2950g Total Kit Weight
  • Includes SV101 Aluminum Tripod and Carrying Backpack
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Framing Simulator
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See exactly how your targets fit with the SVBONY SV501P 70/400 Portable Refractor Telescope, on real sky survey data.

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See exactly what the SVBONY SV501P 70/400 Portable Refractor Telescope shows you, on real sky survey data.

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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty
  • SVBONY SV501P 70/400 Portable Refractor Telescope

    The SVBONY SV501P 70/400 is a complete, self-contained refractor package designed for portability and immediate observation. With a 70mm aperture and a fast 400mm focal length, its f/5.7 optical system suits wide-field views of the Moon, bright planets, and star clusters. The entire kit, including the optical tube, SV101 tripod, and all accessories, weighs just 2950g and packs into the included backpack.

    The 2950g Grab-and-Go Kit: Who is the SV501P For?

    The SV501P is designed for travelers, hikers, and anyone seeking a lightweight, no-fuss telescope for both astronomical and terrestrial viewing. Weighing only 2950g, it's easy to carry to a remote campsite or simply set up in the backyard on a moment's notice. Its simple alt-azimuth mount and SVBONY's no-tool setup make it accessible for beginners, while its 70mm aperture offers engaging views of the Moon and planets.

    Because it includes a 45° correct-image diagonal, it also works as a spotting scope for daytime activities like birdwatching or nature observation.

    2-Element, 2-Group Objective: The SV501P's Optical Heart

    At the front of the 430mm optical tube is the objective lens, an air-spaced doublet consisting of two glass elements in two groups. It is a 2-element, 2-group objective; the glass types are not stated.

    70mm Aperture at f/5.7: Wide Fields and Bright Views

    The telescope's 70mm objective gathers about 100 times more light than a fully dark-adapted eye. Paired with a short 400mm focal length, the resulting f/5.7 focal ratio creates a very wide field of view. This makes it easy to frame large celestial objects like the Pleiades (M45) or the core of the Andromeda Galaxy (M31) in a single view with the included K 20mm eyepiece.

    This wide-field capability also makes the SV501P a "rich-field" telescope for casually sweeping through the star clouds of the Milky Way. The fast focal ratio provides bright images, which is beneficial for observing from light-polluted areas or for daytime viewing.

    Multi-Coated 70mm Optics: Maximizing Contrast

    The optics are multi-coated, which raises light transmission and cuts glare. These coatings reduce internal reflections that can wash out faint details and lower image contrast. The result is a brighter, crisper image with darker sky backgrounds, allowing celestial objects to stand out more clearly.

    1.25" Focuser: Compatibility with Standard Eyepieces

    The SV501P has a simple focuser that accepts standard 1.25" accessories. The focus knob allows for smooth adjustments to achieve a sharp image. While designed for simplicity, the 1.25" format gives you access to a wide range of eyepieces and filters, allowing you to expand the telescope's capabilities over time.

    1.25" Visual Back: Diagonal and Accessory Connections

    The rear of the telescope features a 1.25" visual back secured by two thumbscrews. This is where you insert the included 45° diagonal or other 1.25" accessories. The design is straightforward, ensuring a secure connection for the eyepiece and diagonal during use. This standard interface means you can easily experiment with different diagonals, Barlow lenses, or eyepieces to change your magnification and observing experience.

    45° Correct-Image Diagonal: From Daytime Nature to Night Sky

    A key feature of this kit is the included 45° correct-image prism diagonal. Unlike standard astronomical diagonals that show a mirror-reversed or upside-down image, this one orients the view correctly both up-and-down and left-to-right. This makes navigating the sky and land intuitive, making the telescope usable as a spotting scope. The 45° viewing angle is also comfortable for viewing objects that are high in the sky.

    Imaging with a 400mm Focal Length: Basic Considerations

    While the SV501P is primarily designed for visual observation, you can try basic afocal photography (taking a picture through the eyepiece with a smartphone). The alt-azimuth mount does not track the stars, which limits you to very short exposures of the Moon and bright planets. Serious deep-sky astrophotography requires an equatorial mount and is beyond the scope of this grab-and-go system.

    430mm Tube, 2950g Kit: A Closer Look at the Build

    The optical tube measures a compact 430mm in length, making it easy to handle and pack. The full kit, including the SV101 Aluminum Alloy Tripod, has a total weight of just 2950g. The tripod features an alt-azimuth head with a pan handle for smooth, intuitive pointing up, down, left, and right. Leg lock clamps on each leg let you adjust the tripod's height for a comfortable viewing position, whether you're standing or seated.

    A Complete Kit with a 20mm Eyepiece and Backpack

    The SVBONY SV501P arrives with everything you need to start observing immediately. The package includes:

    • K 20mm Eyepiece: Provides a 20x magnification, suited to wide-field scanning and locating objects.
    • 5x24 Finder Scope: A low-power scope that helps you aim the main telescope accurately.
    • SV101 Aluminum Tripod: A lightweight tripod with an alt-azimuth head and pan handle.
    • Portable Backpack: A bag that carries the telescope kit.

    First Night Out: Getting Started with the SV501P

    Setup is quick and needs no tools. First, extend the tripod legs and attach the optical tube. Before your first night session, align the 5x24 finder scope during the daytime by centering a distant object, like a treetop, in both the main eyepiece and the finder's crosshairs. Once aligned, finding celestial objects at night becomes much easier: simply point the finder at your target, and it will appear in the eyepiece.

    A great first target is the Moon, where the 20x magnification will reveal craters, mountains, and seas across the entire lunar disk. From there, move on to bright planets like Jupiter or Saturn, or sweep through dense star fields to get a feel for the telescope's wide-field view.

  • What can I see with the SVBONY SV501P 70mm refractor?

    The 70mm aperture suits bright celestial objects. You can see the Moon's craters, Saturn's rings, Jupiter's four Galilean moons and the phases of Venus with a suitable eyepiece. For deep-sky targets, it will reveal large open star clusters like the Pleiades (M45), the core of the Andromeda Galaxy (M31), and bright nebulae such as the Orion Nebula (M42).

    Is the SVBONY SV501P good for terrestrial viewing like birdwatching?

    Yes. The included 45° correct-image prism diagonal ensures that images are correctly oriented both vertically and horizontally, just like looking through binoculars. This makes it easy and intuitive to use for birdwatching, nature observation, or viewing distant landscapes.

    How does the SV501P perform on Jupiter with its 20x eyepiece?

    With the included K 20mm eyepiece, the SV501P provides 20x magnification. At this power, Jupiter will appear as a small but distinct disk, and you will clearly see its four largest moons (Io, Europa, Ganymede, and Callisto) as star-like points flanking the planet. To see Jupiter's cloud belts, you will need to add a shorter focal length eyepiece (sold separately) for higher magnification.

    Can I attach a DSLR camera to the SVBONY SV501P?

    SVBONY does not describe camera attachment for the SV501P; it is a visual telescope. Afocal photography, holding a smartphone to the eyepiece, is the simple option. The alt-azimuth mount does not track stars, limiting any photography to very short exposures of the Moon.

    How portable is the 2950g SV501P kit?

    The kit weighs 2950g (about 6.5 lbs) in total, and it comes with a backpack for carrying, which suits travel and camping.

    Can I use different eyepieces with the SVBONY SV501P?

    Yes. The telescope uses a standard 1.25" focuser and diagonal, which is a common size for eyepieces and accessories. You can easily expand your magnification options by purchasing additional 1.25" eyepieces. For example, a 10mm eyepiece would provide 40x magnification for closer views of planets and the Moon.

    Is the included SV101 tripod stable enough for observing?

    The SV101 Aluminum Alloy Tripod is designed to be a lightweight match for the 430mm optical tube. For best stability, set it on solid ground and extend the legs only as far as you need.

    How do I align the 5x24 finder scope?

    Alignment is best done during the day. First, point the main telescope at a distant, stationary object like a telephone pole or treetop and center it in the 20mm eyepiece. Then, look through the finder scope and use the adjustment screws on its bracket to move the finder's crosshairs until they are centered on the very same object. Once aligned, whatever you center in the finder will be in the main eyepiece.

    Does the SVBONY SV501P show false color (chromatic aberration)?

    As a refractor with a 2-element objective, some chromatic aberration (a coloured fringe around very bright objects like Venus or the limb of the Moon) is expected, especially at higher magnifications. This is normal for this optical design. The effect is minimal at the 20x magnification of the included eyepiece and does not detract from wide-field views of star clusters and nebulae.

    What other eyepiece should I get first for the SV501P?

    A second eyepiece around 8mm to 10mm is a common choice. A 10mm eyepiece would give you 40x magnification, which is a useful step up for viewing planetary detail on Jupiter and Saturn. An 8mm would provide 50x, offering even closer views while still delivering a bright image with the telescope's 70mm aperture.

  • Optical Design Refractor
    Aperture 70 mm / 2.75"
    Focal Length 400 mm
    Focal Ratio F5.7
    Objective Lens 2 Elements in 2 Groups
    Optical Coatings Multi-Coated
    Included Eyepiece K 20 mm 1.25" (20x)
    Finder Scope 5x24 Optical
    Diagonal Correct-Image Prism 45° 1.25"
    Tripod SV101 Aluminum Alloy Tripod
    Backpack Included Yes
    Total Weight 2950g
    Optical Tube Length 430 mm
    Rear / Camera-Side Connection 1.25" barrel
    • 70mm f/5.7 Optical Tube Assembly

      × 1

    • SV101 Aluminum Alloy Tripod with Alt-Azimuth Head

      × 1

    • K 20 mm Eyepiece (1.25")

      × 1

    • 45° Correct-Image Prism Diagonal (1.25")

      × 1

    • 5x24 Finder Scope with Bracket

      × 1

    • Portable Backpack

      × 1

    • Lens Cover

      × 1

    • 70mm f/5.7 Optical Tube Assembly

      × 1

    • SV101 Aluminum Alloy Tripod with Alt-Azimuth Head

      × 1

    • K 20 mm Eyepiece (1.25")

      × 1

    • 45° Correct-Image Prism Diagonal (1.25")

      × 1

    • 5x24 Finder Scope with Bracket

      × 1

    • Portable Backpack

      × 1

    • Lens Cover

      × 1

  • SVBONY 1-Year Warranty