• The SV550 APO is a compact refractor with 122mm aperture; f/7 focal ratio and 854mm focal length; a great travel telescope for astrophotography and observation; and even some fainter deep sky objects due to the higher limiting magnitude. It weighs 6.44kg/ 14.18lb; easy to carry out and comes with a carrying case bag;
• The SV550 122mm adopts a FPL-51 triplet apochromatic lens structure which contains one piece of ED glass; the triplet lens provides better correction of aberration and greatly reduces chromatic aberration and enhance the clarity and sharpness;
• The gear ratio of the dual speed 2.5-inch toothed focuser is 1: 10; which makes it easy to achieve accurate focus; the dual speed focuser can provide two focusing speeds by using a set of co-axial knobs; for fast focusing and fine focusing;
• The length of the dovetail is as high as 300mm; it can maintain the balance to the greatest extent; and it will be more convenient in the adjustment process.

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• Reduce light pollution; SV220 Dual Narrow bandwidth H-Alpha/O-III 7nm narrowband filter properly designed for astrophotography both in light polluted environment.It can greatly reduce the interference from natural light sources such as moonlight or artificial light pollution such as street lighting;
• Astrophotographic;the filter enhances contrast during visual observation of gaseous and planetary nebulae in all sky conditions; the filter allows high-contrast imaging even in areas with strong light pollution;
• Improving contrast; an increase in contrast can be perceived as an increase in brightness; the filter makes the contrast of the nebula and sky background increase; not the nebula brighter;
• Strong applicability; the filter applicable to SVBONY's electronic cameras and astronomical cameras; 
• Useful for imaging emission nebulae, planetary nebulae and supernova remnants. Designed to sharply cut off the inference of artificial light from sodium vapor or mercury vapor street lights and other unwanted disturbance like sky glow.

Note: This filter set is not suitable for telescopes with a focal ratio below F/5.

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• CNC hollow structure; SV225 altazimuth mount adopts hollow structure; reduce the weight(2.34Kg); convenient for you to carry out; light weight
• Fine adjustment shift; SV225 alt-az mount can fine-tune the telescope to meet your adjustment efficiency in different scenarios
• Variable speed gear; SV225 alt-azimuth mount is variable speed gear slow motion controls on both axes to let you smoothly follow the motion of the moon and planets
• Load capacity; with a payload capacity of 10kg; even light weight; the SV225 alt azimuth mounts will match well with the telescope; camera and so on
• Applicable scenes; SV225 alt-az mount is suitable for many senorios; like astronomical visual observation and surface observation

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• Correct chromatic aberration; SV231 telescope filter prevents unwanted color banding in the blue spectral range; minimizes blue wavelengths in out-of-focus areas;
• OD＞4; the higher the filter cut-off depth; the smaller the noise and the higher the imaging contrast;
• Full thread design; M48x0.75 specification; male thread; thread is not easy to wear; you can overlay other filter to use;
• AR anti-reflection coating design; transmittance exceeds 95%; improves the contrast and clarity of fast achromatic telescopes, ensures image quality and brightness; obtains more observable light;
• Good performance coating; telescope color correction filter has plasma-enhanced dielectric coatings result in hard; scratch-resistant and waterproof filters;
• 300-1200/NM wavelength; blocking light damage and eliminating blue and purple streaks.

• Dual ED objective lens (4 pieces/4 group) ultra-low dispersion optical glass that significantly reduces chromatic aberration; the ed spotting scope presents clear images with good color correction; and enjoy lifelike colors and contrast;
• 100mm large-aperture; improved light collection capabilities; provides wide field of view and support for long-distance observation; allow the spotting scope to display a bright field of view;
• Detachable eyepiece; SA401 spotting scope can be freely combined to achieve a variety of observation methods; and can be compatible with SC001 WIFI camera to download and share photos in real time;
• APO apochromatic; increase the clarity and color restoration of the image; eliminate chromatic aberration for a variety of colors, and make the imaging effect sharp and clear;
• Smooth focus wheel; the scope can accurately capture fast-moving birds; easily adjust the focus; achieve high-speed focusing; and capture moving birds;
• Standard thread interface; use the universal standard ¼-20 tapped hole; 
• Waterproof and fogproof; spotting scope with built-in shading protects the objective from raindrops and snow; avoids sudden environmental changes to damage.

• Flat field correction; this design solves the problems of edge blur; distortion; field curvature; and chromatic aberration; bringing a more comfortable birding experience;
• ED glass; the binoculars for adults greatly eliminates chromatic aberration; highly restores real scenery; and makes the picture sharp and clear;
• FMC coating; improve light transmittance; reduce light loss; allowing you to obtain clearer and brighter images and provide a better observation experience;
• Magnesium alloy mirror body; the ED binoculars is light weight and corrosion resistant; superior to other materials and long use time;
• Large eyepieces; SA205 binoculars have strong light gathering ability; providing more realistic colors; a wider area of the sky can be seen simultaneously;
• Diopter adjustment; adjust visual balance for easier observation and convenient for people with myopia or presbyopia to see the effect directly without wearing glasses;
• Anti-slip focusing wheel; smooth focusing handwheel ensures accurate and stable focusing with one hand; fast focus and easy to operate.

• Double pair of magnets; SV226 photographic filters drawer compared with traditional screw rotation; magnet has stronger adsorption force; which is convenient for you to install and use
• Two filter holders; compatible with 1.25-inch and 2-inch filters; plug and play; reducing repeated installations in dark environments
• Locking function; lock screw can adjust the tension to eliminate the gap; solve the light leaking issue under long exposure; which is a double insurance for you
• M42-M48 adapter; camera side thread is male; filter mounts thread is female; you can use the adapter to coonect cameras of different specifications
• CNC integrated molding; more precise production process; strong and sturdy; you can use filter drawer with confidence
• Filter drawer thickness; the thickness is related to back focal length; back intercept affects the quality of imaging; it limits the use of accessories and optical path length
• Use with telescope; connect the telescope to the focal reducer and drawer filter; then connect the adapter to the camera

• Flat field correction; this design solves the problems of edge blur; distortion; field curvature; and chromatic aberration; bringing a more comfortable birding experience;
• ED glass; the binoculars greatly eliminates chromatic aberration; highly restores real scenery; and makes the picture sharp and clear;
• FMC coating; improve light transmittance; reduce light loss; allowing you to obtain clearer and brighter images and provide a better observation experience;
• Magnesium alloy mirror body; the ED binoculars is light weight and corrosion resistant; superior to other materials and long use time;
• Large eyepieces; binoculars for adults strong light gathering ability; providing more realistic colors; a wider area of the sky can be seen simultaneously;
• Diopter adjustment; adjust visual balance for easier observation and convenient for people with myopia or presbyopia to see the effect directly without wearing glasses;
• Twist-up eyecups; SA205 binoculars give you a comfortable experience; it allows you to customize the eye relief to obtain a full field of view with or without glasses.

• This dual narrow band telescope filter properly designed for astrophotography both in light polluted environment;
• Take color images without needing to combine images with multiple filters. Useful for imaging emission nebulae, planetary nebulae and supernova remnants;
• Designed to sharply cut off the inference of artificial light from sodium vapor or mercury vapor street lights and other unwanted disturbance like sky glow.

• SV305C telescope camera adopts the latest IMX662 1/2.8” back-illuminated sensor. Ultra-high sensitivity and ultra-low readout noise, it has better performance in planetary photography and lunar surface photography, and is very suitable for EAA;
• One-key quick setting: high-speed mode and deep space long exposure mode in the sharpcap software, users can choose according to their actual shooting needs, and realize one-key quick setting. It can be saved for convenient one-key setting next time. The unique one-button operation mode makes planet shooting easier;
• UV/IR CUT protective glass with detachable design: If users want to shoot infrared or ultraviolet bands, they can remove the protective glass at the front of the camera by themselves, connect it with a 1.25-inch extension tube, and connect an external IR685, IR850 or UV Venus filter to achieve different shooting experience;
• Using HCG noise reduction technology, when the gain is increased, the HCG mode will be automatically turned on, which can greatly reduce the readout noise, and at the same time retain the high dynamic range of low gain. When the gain value of SV305C telescope camera is 190, HCG will be turned on automatically.

Consumer Reviews of SV305C

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• Firm locking; SV223 diagonal mirror has a clicklock locking mechanism; just turn the clicklock to securely fix the accessory; ensuring the eyepiece is installed and used stably; not easy to fall off
• Coating: 99% Reflectivity SV223 diagonal mirror has metal high reflective dielectric coating
• Surface accuracy: 1/10λ
• High-quality machining out of the aluminum; SV223 star diagonal is composed of High-quality aluminum elements; chic; light and stable; internal antireflection baffling for highest contrast
• 90 degrees design; SV223 star diagonal has a 90 degrees refraction angle; providing a better observation experience when visually observing.

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• The SC311 is designed with Sony IMX662 color CMOS sensor, which uses advanced STARVIS 2 technology. It has the characteristics of no amp glow and very low readout noise, higher sensitivity to red and near infrared(NIR) light；
• 2.4G WiFi technology let you can use 4 devices at the same time and share the fun of astronomy with your friends. Support Android and Apple systems, you can download them in the software store；
• 10M effective transmission sensing distance allows you to get rid of the shackles of the data cable, it is easier to realize the fun of astronomy observation outdoors；
• Built-in 2400mah lithium battery, it can support about 4 hours of continuous work, allowing you to have more time to focus on observations；
• Connect to our SvbonyAstro a software application designed by ourselves. You can do observation on your phone or pad and save them to the SC311 built-in TF card, and then easily share to social media.
• The SC311 camera can be connected via USB cable to a PC. You can use this camera to capture with the AstroDMx Capture program or etc. Also it complies with the standard UVC protocol and no need to install SVBONY driver.  

Reviews of SC311

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SM403 Forward-Mounted Binocular Stereo Microscope has vertical arm bracket; which reduces the pressure on the cervical spine, 3 magnification settings. LED dual light source design and the brightness is adjustable. It is an ideal choice for circuit board welding, watch repair and seed quality testing.

• SV211 dovetail base comfortable and convenient carrying handle. After the combined installation, the large-aperture telescope can be easily carried and moved;
• SV211 finder scope mount bracket the length is 203mm, with 2 M6 mounting screws, 4 M4 set screws, and 1 M5 wrench, which can be easily installed and removed;
• SV211 dovetail base full CNC integrated finishing anodized aluminum, not easy to damage;
• It can reduce collision and wear when taking the telescope somewhere.

• The SV229 is an ideal choice for viewing the sun, and it conforms the standard ISO 12312-2: 2015. You can use it with confidence;
• It can provide a clear, crisp sunspots, solar eclipses, granulation through telescopes and binoculars view while rejecting harmful ultraviolet and infrared radiation;
• The sun will appear in a natural orange color when viewed through your telescope using this Solar filter;
• SV229 solar filter is a must-have item to observe the sun without damaging your eyes - optical filter fits snugly over your telescope's aperture;

Certified by AAS (American Astronomical Society) 

Note: This solar filter is suitable for SV503 70mm f/6、SV503 80mm f/7、SV550 80mm f/6 

• The SV229 is an ideal choice for viewing the sun, and it conforms the standard ISO 12312-2: 2015. You can use it with confidence;
• It can provide a clear, crisp sunspots, solar eclipses, granulation through telescopes and binoculars view while rejecting harmful ultraviolet and infrared radiation;
• The sun will appear in a natural orange color when viewed through your telescope using this Solar filter;
• SV229 solar filter is a must-have item to observe the sun without damaging your eyes - optical filter fits snugly over your telescope's aperture. 

Certified by AAS (American Astronomical Society) 

Note: This solar filter is suitable for SV503 102mm f/7、SV550 122mm f/7 

This bundle includes:

• SV41 Pro 28-84x80 Mak Spotting Scope, SKU: F9334H
• SC001 Wifi Camera, SKU: F9373A
• Universal Dovetail Slots, SKU: W2370A
• SV182 6x30 Right-Angle Finder Scope, SKU: W9141B
• SV182 6x30 Straight-Through Finder Scope, SKU: W9141A

This telescope bundle set includes SVBONY refractor OTA and the SV229 solar eclipse filter metal cap. The SV229 is an ideal choice for viewing the sun, and it conforms the standard ISO 12312-2: 2015. You can use it with confidence. It is also suitable for daily solar observations. It is worth to mention that, the SV229 solar filter metal cap is compatible with most of our telescopes and other brand refractors. 

• 90-degree design; SV222 90 degree diagonal mirror provides a better observation experience when visually observing
• Extinction thread; Extinction thread prevents stray light from entering; ensures observation quality
• 1.25 inches thread; 1.25 inches SV222 telescope diagonal can connect filter; meet various needs of customers
• Locking mechanism; SV222 90 degree diagonal mirror ensure the stable installation and use of the eyepiece; not easy to fall off
• 99% high reflectivity; telescope accessory have large amount of light transmission; good imaging effect

• 1.25-inch aperture; SV222 45 degree diagonal is 1.25-inch aperture; strong versatility; can be applied to 1.25-inch eyepieces and astronomical accessories
• The image is clear and bright; correct image diagonal adopts a 45-degree upright prism; with full multi-layer coating and phase coating; the image contrast is high; the picture is clear and bright
• Delustering design; blackened and baffled inside; it can prevent internal stray light reflection
• Metal material; 1.25 inch SV222 telescope diagonal is made of aluminum alloy metal material; with black anodizing; sturdy and durable
• The installation is stable; brass pressure ring design; SV222 45 degree diagonal is firmly connected with the eyepiece and does not shake; it will not scratch the eyepiece

• High definition photography; bird feeder can capture 4-mega pixel high-definition photos and 1080P high-resolution video; even in low light; you can take high-definition color images;
• Night vision function; you can capture clear black-and-white images and videos within 6m through infrared LEDs even at night
• AI intelligent recognition; it can automatically identify 11000 species of birds; the camera will automatically identify and record videos; identifying birds and learning bird knowledge;
• 2L capacity; the capacity of the food trough is 2L that can store enough food; so you don't need to add bird food as often
• Built-in 5000mAh battery; it can run on standby for about 3 months under normal circumstances; 3W solar panel charges the battery; no need to worry about power issues;
• Large memory; support the installation of 8-128G memory cards; convenient for you to upload to social media platforms; he images and videos automatically be saved in the card;
• 2.4GHz WIFI connection; the camera only supports 2.4GHz WIFI; not 5GHz WIFI; you don’t need to worry about signal loss and missing a moment of your bird visitors.

• The SV510 dedicated solar scope delivers sharp, detailed views of sunspots, transits, and more;
• Exceptional image clarity and intricacy ensure you don't miss any detail;
• Designed small and lightweight for easy portability. Non-removable material solar filter conforms to ISO 12312-2:2015;
• Protect the observation process and enjoy worry-free sun viewing. It is suitable for daily solar observations.  

Certified by AAS (American Astronomical Society) 

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