Is SVBONY a good brand?

We don't rank brands. What the data shows: 136 live SVBONY listings on Amazon US, the most of any telescope brand we track, covering refractors and a Maksutov, eyepieces, Barlows, filters, finders, phone adapters, alt-az mounts, binoculars and astronomy cameras. Many are bundles. Judge a single listing by its specs and what's in the box.

What is the SVBONY SV503?

A refractor line. Our data lists the SV503 80ED as an 80 mm refractor with ED glass at f/7, sold as an optical tube only, and a SV503 80ED visual kit with an SV135 7-21 mm zoom eyepiece. ED glass is low-dispersion glass meant to reduce color fringing. The tube needs a mount and diagonal to use.

Are SVBONY eyepieces good for beginners?

The listings cover the usual beginner range: Plossl eyepieces at 32 and 40 mm, wide-angle eyepieces from 4 to 34 mm, and several zoom eyepieces such as the SV135 7-21 mm and SV230 8-20 mm. Most are 1.25-inch barrel, the size most beginner scopes use. Check your focuser's barrel size first.

Which SVBONY filter should I buy?

It depends on the target. Moon filters and variable polarizers cut glare on the bright Moon. UHC, CLS and O-III filters are for nebulae and light-polluted skies. Dual-band and narrowband filters such as the SV220 and SV227 are for cameras. Match the barrel size, 1.25-inch or 2-inch, to your focuser or camera.

Where is SVBONY from?

We couldn't confirm a headquarters city from SVBONY's own site. Its home page says the brand has been in telescope technology for nine years and is sold in more than 100 markets, and lists telescopes, spotting scopes, binoculars, microscopes and astronomy accessories.

Do SVBONY phone adapters fit any telescope?

They clamp to the eyepiece, not the telescope, so the eyepiece size matters. Our data lists a universal adapter for eyepieces from 25 to 48 mm across, and the SV214 Pro listed as a 3-axis adapter with an extra adjustment for lining up the phone camera. Measure the outside of your eyepiece before you order.

SVBONY Telescopes, Eyepieces, Filters and Cameras: The Lineup

What SVBONY makes

SVBONY's own site lists telescopes, spotting scopes, binoculars, microscopes and astronomy accessories, and says the brand has been in telescope technology for nine years. In our Amazon US data, its 136 live listings cover nine types:

Eyepieces and eyepiece bundles
Barlow lenses, often bundled with something else
Telescope filters: Moon, color, polarizing, UHC, CLS, O-III, narrowband
Finderscopes and guide scopes, dovetail bases and brackets
Phone adapters
Telescopes: refractors, Maksutovs, a Petzval APO
Mounts: the SV225 family of alt-az mounts and the SV225T tripod
Astronomy cameras: planetary and cooled color models
Binoculars: the SV407 2.1x42

The shape of the list is the main fact about this brand. Most of it is the parts that go between a telescope and an eye or a camera. I had a parts tray for each type by the time I finished reading. The label maker got a workout.

SVBONY telescopes

SV503, SV530 and SV550: refractors with special glass

The SV503 80ED lists 80 mm, ED glass and f/7, as an optical tube only. The SV503 80ED visual kit adds an SV135 7-21 mm zoom eyepiece. The SV530 80mm ED lists 80 mm, 480 mm focal length and f/6. The SV550 80mm APO lists apochromatic glass at f/6.

ED and APO refractors use special glass to bring colors to focus closer together, which cuts the colored fringe around bright objects that simpler refractors can show. These suit someone who wants sharp views of the Moon and planets, or a small tube for wide-field photos. They need a mount, a diagonal and eyepieces or a camera. Our refractor telescopes page explains the glass types and focal ratio.

SV48P and SV520: achromatic refractors

The SV48P 90mm lists an achromatic 90 mm tube, 500 mm focal length and f/5.5, as an OTA. The SV48P 102mm kit lists 102 mm at f/6.5 with an SV135 zoom and a right-angle finder. The SV520 is a 90 mm refractor with an 800 mm focal length on a manual alt-az mount, with PL10 and K25 eyepieces, a Barlow and a smartphone adapter listed. That last one is the most complete starter package in the line.

MK105 and MK127: Maksutovs

The MK105 lists a 105 mm Maksutov-Cassegrain with a 1365 mm focal length at f/13 and a 210x maximum useful magnification, sold as an OTA. The MK127 with SV225 mount lists 127 mm at f/11.8 on a manual alt-az mount. A Maksutov folds a long focal length into a short tube. Long focal length means high magnification with ordinary eyepieces, which suits the Moon and planets. It also means a narrow field, so large star clusters won't fit in the view.

SV545 Petzval APO

The SV545 lists a 203 mm focal length at f/4.5 with apochromatic glass, alone or with an SV241 Pro power hub. A focal length that short and a ratio that fast are built for wide photos of the sky, not for magnifying planets.

SVBONY eyepieces and Barlows

Magnification is the telescope's focal length divided by the eyepiece's focal length. A Barlow lens multiplies it: a 2X Barlow doubles it. Celestron's eyepiece guide gives the highest useful magnification as about 60x per inch (25.4 mm) of aperture. On a 70 mm scope, that's about 165x.

SVBONY's eyepiece listings cover:

Plossl: 32 mm and 40 mm, simple and forgiving
Wide angle: 4 mm at 62°, 6 and 9 mm at 68°, 13 mm at 70°, 34 mm at 72° in a 2" barrel
Gold Line set: 6, 9, 15 and 20 mm
Zoom: SV135 7-21 mm, SV191 7.2-21.6 mm, SV215 3-8 mm, SV230 8-20 mm, SV245 8-16 mm
Reticle: SV152 20 mm, with a crosshair for alignment and guiding

Barlows come in 2X, 3X and 5X, many bundled with an eyepiece, a phone adapter or a second Barlow.

Here's my one opinion on this page. Be careful with the 5X Barlow bundles on a small scope. Put a 4 mm eyepiece behind a 5X Barlow on a 700 mm tube and the arithmetic says 875x. A 70 mm aperture's ceiling is about 165x by Celestron's guide. The extra power makes the image bigger and dimmer, not more detailed. A 2X Barlow and a mid-length eyepiece usually land inside the range.

SVBONY filters

Filters screw into the bottom of an eyepiece or the front of a camera. The listings sort into a few jobs:

Moon glare: Moon filters, ND filters (the SV139 set includes ND4, ND8, ND16 and ND1000), and variable polarizers that you twist to dim the view
Planet color: a five-color filter kit and color correction filters
Visual nebulae: UHC, CLS and O-III filters in 1.25" and 2"
Camera nebulae: SV220 dual-band and SV227 SHO narrowband sets, an SV240 multi-narrowband filter
Camera basics: UV IR cut and an IR pass filter

The ND1000 in the SV139 set name is a dark neutral density filter. Our data doesn't state that any SVBONY filter meets ISO 12312-2 or is made for viewing the Sun. Don't treat any of them as a solar filter. See the safety section below.

Finders, mounts and phone adapters

Finders run from a red dot finder and 5x24 straight finder to 6x30 right-angle and 8x50 finders. The SV106 60 mm and SV165 30 mm F4 are guide scopes, small scopes that carry a guide camera for photography. Dovetail bases and brackets fill out the list.

The SV225 is a manual alt-az mount; two listings give it a 22 lb payload, and the SV225 Mini with tripod lists 11 lb. The SV214 Pro is a 3-axis phone adapter; there's also a universal adapter for 25 to 48 mm eyepieces.

SVBONY astronomy cameras

The camera listings include the SV105 and SV205 small planetary cameras, the SV305C and SV705C with IMX662 and IMX585 sensors, the SC715C planetary camera, and cooled color cameras: the SV405CC, SV605CC and SC571CC. The SV905C is a guide camera. A planetary camera takes fast video for stacking. A cooled camera chills its sensor to cut noise in long deep-sky exposures.

Several camera listings are bundles too: the SV305C Pro with an SV165 mini guide scope, the SC715C with a power adapter, a UV IR cut filter or a 3X Barlow, the SV605CC with a dual-band filter, and an SV238 off-axis guider with the SV905C guide camera. An off-axis guider sends a sliver of the telescope's own light to the guide camera, so you don't need a separate guide scope.

The small planetary cameras suit someone with a tracking mount who wants the Moon and planets on a laptop screen. The cooled color cameras suit someone ready for long deep-sky sessions and stacking software. Skip both if you're still learning to find things in the sky; a phone adapter teaches the same framing lessons for far less setup.

SV407: binoculars at 2.1x

The SV407 is listed as 2.1x42 with a 26-degree field. That's very low power and a very wide view, closer to your naked eye than to normal binoculars. It shows whole constellations at once with more stars than you'd see without it. Bundles in our data pair it with a 2" UHC filter, a Moon filter, or two O-III filters.

This suits someone who wants to wander the Milky Way from a lawn chair without aiming anything. Skip it if you want craters on the Moon up close; at 2.1x the Moon stays small. Our stargazing binoculars page covers higher-power models from other makers.

Reading an SVBONY bundle

In our data, 41 of SVBONY's 136 listings have "Bundle" in the name: one part plus one or two more. "2X Barlow Lens Bundle with 40mm Plossl Eyepiece." "SV214 Pro Phone Adapter Bundle with 4mm Eyepiece." "SV182 Finderscope 6x30 Bundle with Dovetail Base and Mount Bracket." That's useful when you need every part in the bundle. It's clutter when you already own one of them.

Before you add a bundle to the cart, do three things:

Write down what you own. Barrel sizes, eyepiece focal lengths, any adapters.
Read the bundle name word by word. Every item is in the title, usually in order.
Check the barrel size of each piece. 1.25" and 2" don't mix without an adapter.

The SV-numbers help. SV137 is a Barlow, SV135 a zoom eyepiece, SV182 a 6x30 finder, SV214 Pro a phone adapter, SV225 a mount. Once you know a handful of them, the long titles read faster.

Who should skip SVBONY's parts list for now

Skip the accessories if you don't own a telescope yet. Eyepieces, filters and Barlows only make sense next to a specific focal length and barrel size. Start with a scope or a kit that lists its eyepieces, then come back.

Skip the cooled cameras if you don't have a tracking mount. A camera behind a telescope on a fixed mount sees stars drift out of frame in seconds.

How to pick within SVBONY

No telescope yet: the SV520 kit lists a mount, two eyepieces, a Barlow and a phone adapter in one box.
Have a scope, want more views: one zoom eyepiece covers several focal lengths.
Bright Moon: a Moon filter or variable polarizer.
City sky and nebulae: a UHC or CLS filter for looking; dual-band for a color camera.
First photos: a phone adapter before a camera.

Lucho flipped through the bundles and asked why every listing has a second listing hiding inside it. "Because somebody always needs the Barlow too," I said. He said the shop sells gaskets the same way.

Sun safety

Never look at the Sun through a telescope, binoculars, a finder or a camera, or with your eyes, without a certified solar filter made for that purpose and fitted correctly. Eye damage can be instant and permanent.

The American Astronomical Society warns that filters which thread into an eyepiece are dangerous: sunlight concentrated by the optics can burn through them. A solar filter goes on the front of the telescope.

Read the barrel size before the part number. Then find the tray it belongs in.

SVBONY on Amazon US