SVBONY SV520 Telescope Review: Worth It? (October 2026)
The SVBONY SV520 is a 90mm refractor kit for beginners who want to view the Moon and bright planets. Its 800mm focal length, alt-azimuth mount, two eyepieces and Moon filter make a complete starting setup, while its manual controls still take practice.
On this page (10 sections)
- The SVBONY SV520 telescope review at a glance
- What do the SV520’s aperture and focal length mean for planets?
- How does the SV520 compare with a 70mm refractor?
- Does the SV520’s mount suit a first telescope?
- What is included, and what might you add later?
- Is the SV520 a good telescope for Moon photography?
- What are the main alternatives to the SVBONY SV520?
- How should you learn to use the SV520?
- Is the SVBONY SV520 worth considering?
- Frequently asked questions
The SVBONY SV520 is a 90mm beginner refractor kit for observing the Moon and bright planets. Its 800mm focal length, two eyepieces, Moon filter and metal tripod give you a ready-to-assemble starting setup, while the manual alt-azimuth mount calls for practice in finding and tracking targets.
This review weighs the stated features against a beginner’s likely needs. The SV520 makes the most sense if you want a larger aperture than a 70mm starter scope and value having lunar accessories in the box.
The SVBONY SV520 telescope review at a glance
The SV520 is best suited to beginner lunar observing and bright targets, with a 90mm aperture and 800mm focal length. Its included PL10 and K25 eyepieces cover two starting magnifications, and the Moon filter gives you an accessory intended for lunar viewing.
SVBONY SV520 Telescope for Adults: Best for a complete beginner kit
- 90mm aperture
- 800mm focal length
- Alt-azimuth mount
- PL10 and K25 eyepieces
- Moon filter
A beginner-oriented refractor kit with two eyepieces, a Moon filter, a 5x24 finderscope, smartphone holders and a metal tripod. It suits shoppers who want those accessories included with a 90mm telescope.
Pros
- 90mm aperture
- Two eyepieces and a Moon filter included
- Metal tripod and alt-azimuth mount
- Smartphone holders and shutter included
Cons
- Manual pointing and focusing require practice
- The 800mm focal length favors lunar and bright targets over very wide views
The scope uses an alt-azimuth mount with 360° horizontal and 90° vertical adjustment, plus fine adjustment knobs. Those controls are straightforward in concept, but smooth tracking still takes coordination as an object moves across the sky.
Who should consider the SV520?
Consider it if you want a refractor kit with a metal tripod, finder, Moon filter and phone holder included. The included accessories can help you begin without choosing each basic part separately.
It may be less suitable if you need a very portable travel scope or expect the mount to track targets automatically. For adult-sized refractor options, compare this kit with our best refractor telescope for adults.
What do the SV520’s aperture and focal length mean for planets?
The 90mm aperture gathers light, while the 800mm focal length helps frame the Moon and bright planets at useful magnifications with the supplied eyepieces. Neither number guarantees a sharp planetary image by itself, since focus, atmospheric steadiness and mount movement also matter.
A telescope’s basic magnification comes from dividing its focal length by the eyepiece focal length. With the SV520’s 800mm focal length, the K25 eyepiece gives about 32x, while the PL10 gives about 80x before using the Barlow lens.
Higher magnification enlarges a view, but it also makes vibration and focusing errors more visible. Begin with the 25mm eyepiece to locate a target, then switch to the 10mm for a closer view when the image is steady.
The included Barlow lens can raise magnification, but added power does not add detail the atmosphere and optics cannot resolve. If the image gets dim, soft or difficult to keep centered, return to a lower-power view.
How does the SV520 compare with a 70mm refractor?
The SV520’s 90mm aperture is larger than the 70mm apertures on the two Celestron alternatives below, giving it a light-gathering advantage on paper. A 70mm telescope can still be a better fit if its simpler travel setup or longer focal length matches how you plan to observe.
| Product | Best for | Aperture | Focal length | Mount | Our score |
|---|---|---|---|---|---|
| SVBONY SV520 Telescope for Adults | a complete beginner kit | 90mm | 800mm | Alt-azimuth | 9.6 |
| Celestron Travel Scope 70mm Beginner Portable Telescope | travel and daytime viewing | 70mm | 400mm | 9.7 | |
| Celestron AstroMaster 70AZ Refractor Telescope for Moon | simple manual pointing | 70mm | 900mm | Alt-azimuth with panhandle | 9.7 |
The SV520 has an 800mm focal length. The Travel Scope’s 400mm focal length favors wider views and portability, while the AstroMaster 70AZ’s 900mm focal length gives it a longer focal length than the SV520 despite its smaller aperture.
For another 102mm refractor comparison, read our SVBONY SV48P 102mm telescope review. If you are weighing optical trade-offs across refractors, our best achromatic refractor telescope guide gives you more models to compare.
Does the SV520’s mount suit a first telescope?
The SV520’s manual alt-azimuth mount moves horizontally and vertically, which makes basic pointing easier to understand than a mount that needs polar alignment. Its fine adjustment knobs are intended to make smaller movements, and the metal tripod is described as helping dampen vibration.
A manual mount does not keep a planet centered by itself. You’ll need to nudge the telescope as the target drifts, especially at higher magnification where the field of view looks narrower.
Place the tripod on firm ground and extend its legs only as much as needed for a comfortable viewing position. Let the telescope settle after touching the focuser or adjustment knobs before judging sharpness.
Set up during daylight to practice the controls, but never point a telescope at the Sun without a proper front-aperture solar filter. The included Moon filter is not a solar filter.
What is included, and what might you add later?
The SV520 includes the core accessories for a first observing session, including two eyepieces, a finder, Moon filter, Barlow lens, diagonal mirror and tripod tray. It also comes with smartphone holders and a shutter for basic phone photography.
The listed accessories are:
- 5x24 finderscope
- K25 and PL10 eyepieces
- Barlow lens
- Moon filter
- Zenith mirror
- Stainless-steel tripod and accessory tray
- Two smartphone holders and a shutter
The kit’s eyepieces provide a low-power starting view and a closer view. Learn to center targets and focus with those first, then decide whether another eyepiece or filter would solve a real observing need.
For phone images, a holder can keep the camera aligned with the eyepiece, but it does not turn the setup into a dedicated astronomy camera. The Moon is a practical first subject because it is bright and easy to locate.
Is the SV520 a good telescope for Moon photography?
The SV520’s phone holders and shutter support basic lunar snapshots, making it a reasonable option if you want to try telescope photography with a phone you already own. Results will depend on steadiness, phone alignment, exposure and focus.
Start by centering the Moon visually and securing the phone over the eyepiece. Use the phone’s timer or the included shutter to reduce movement when taking a shot.
Keep expectations modest for planets and faint deep-sky targets. A phone camera may struggle to focus and expose those subjects through an eyepiece, so a telescope designed around imaging may be a better fit if photography is your main goal.
Our best telescope for Moon photography guide compares options for that more specific use.
What are the main alternatives to the SVBONY SV520?
Choose an alternative when portability, focal length or manual control matters more than the SV520’s larger aperture. Both Celestron models here have 70mm apertures, but their included accessories and focal lengths differ.
Celestron Travel Scope 70mm
The Travel Scope 70 is the portable choice, with a 70mm aperture, 400mm focal length and included backpack. It comes with 20mm and 10mm eyepieces and is designed for day and night use.
Celestron Travel Scope 70mm Beginner Portable Telescope: Best for travel and daytime viewing
- 70mm aperture
- 400mm focal length
- Backpack included
- 20mm and 10mm eyepieces
A compact 70mm refractor with a backpack, two eyepieces and no-tool setup. Consider it if carrying the telescope and using it for daytime scenery matter more than the SV520's larger aperture.
Pros
- Backpack for storage and travel
- No-tool setup
- Two eyepieces included
- Day and night use
Cons
- 70mm aperture is smaller than the SV520's
- Shorter focal length is less suited to higher-power lunar views
Choose it if you expect to carry your telescope or want a scope that can also be used for daytime scenery. Its shorter focal length and smaller aperture make it a different fit from the SV520 for closer lunar and planetary views.
Celestron AstroMaster 70AZ
The AstroMaster 70AZ is the longer-focal-length 70mm alternative, with a 900mm focal length, 20mm and 10mm eyepieces, and a manual alt-azimuth mount with panhandle. It is aimed at beginners who want simple manual pointing for Moon, planet and daytime viewing.
Celestron AstroMaster 70AZ Refractor Telescope for Moon: Best for simple manual pointing
- 70mm aperture
- 900mm focal length
- Alt-azimuth mount
- 20mm and 10mm eyepieces
A 70mm refractor with a 900mm focal length, two eyepieces and a panhandle alt-azimuth mount. It is an alternative for beginners who value familiar manual pointing and Moon-focused use.
Pros
- Longer focal length than the SV520
- Two eyepieces included
- Manual panhandle mount
- Day and night viewing
Cons
- Smaller aperture than the SV520
- No smartphone holder or Moon filter listed among the included accessories
Consider it if the panhandle control appeals to you or you prefer its longer focal length. The SV520 offers the larger aperture and includes a Moon filter and smartphone holders.
How should you learn to use the SV520?
Learn the SV520 in daylight with a distant stationary object, then use it on the Moon after dark. Practicing the finder, focuser and mount before a night session makes it easier to recognize what each adjustment does.
First, attach the finder and align it with the telescope using a distant object, never the Sun. Begin with the K25 eyepiece, center the object, and make small focus changes until its edges look as clear as conditions allow.
After dark, choose the Moon or a bright planet and keep the tripod low enough to stay stable. Move the telescope gently, since a small touch can shift the target when using the PL10 eyepiece.
Our beginner’s guide to using a telescope walks through setup, focusing and finding objects. It can help you build a repeatable routine before trying higher magnification.
Is the SVBONY SV520 worth considering?
The SV520 is worth considering if you want a 90mm beginner refractor with a Moon filter, two eyepieces and a metal tripod. Its strongest fit is a first telescope for the Moon and bright targets, with manual controls you are willing to learn.
Pick the SV520 for the larger aperture and included lunar accessories. Choose the Travel Scope if a backpack and portability matter most, or the AstroMaster 70AZ if its panhandle mount and longer focal length fit your observing plans better.
If value across several refractor sizes is your main concern, compare the best refractor telescope for the money before deciding. For a smaller aperture option, see the best 80mm refractor telescope.
Frequently asked questions
Can the SVBONY SV520 show Saturn’s rings?
The SV520 can be used to observe bright planets, including Saturn, but how much detail you see depends on sky steadiness, focus and magnification. Start with the K25 eyepiece to find the planet, then try the PL10 when the view is stable; a telescope cannot overcome poor atmospheric seeing.
Does the SVBONY SV520 need batteries?
The SV520’s mount and focusing system are manual, so basic viewing does not require batteries. The phone holders can be used with a smartphone, which has its own battery needs, but the telescope itself is moved and focused by hand.
Is the SV520 suitable for children?
The SV520 is presented as a beginner kit, but an adult may need to help younger children assemble it, align the finder and handle the tripod. Its adjustable tripod and manual mount can support shared observing, with supervision and a stable setup.
Can you use the SV520 for daytime viewing?
The SV520 can point at distant land targets, though its included zenith mirror and astronomical setup are aimed at sky observing. Never point it at the Sun, even briefly, unless you have a telescope-specific solar filter that covers the front aperture.
Frequently asked questions
Is the SVBONY SV520 good for beginners?
The SV520 is designed as a beginner telescope kit, with a 5x24 finderscope, PL10 and K25 eyepieces, a Moon filter and an alt-azimuth mount. You'll still need to learn how to align the finder, focus carefully and move the telescope in small steps to keep a target in view.
Can the SVBONY SV520 show planets?
The 90mm aperture and 800mm focal length suit lunar and bright-planet observing, but the view depends on conditions, target height and magnification. Start with a lower-power eyepiece, focus carefully and increase magnification only when the image remains steady and clear.
What comes with the SVBONY SV520?
The kit includes a 90mm telescope tube, alt-azimuth mount, stainless-steel tripod, tray, 5x24 finderscope, PL10 and K25 eyepieces, Barlow lens, Moon filter, zenith mirror and phone holders. Check the manual for assembly and accessory use before your first session.
Can you take photos with the SVBONY SV520?
The SV520 includes smartphone holders and a shutter for taking photos through the telescope. Phone photography works best as a simple way to capture the Moon; steady the setup, center the target first and expect results to vary with focus, exposure and sky conditions.
