• 1.25"/2'' moon and skyglow filter is a multi band pass filter transmitting a high percentage of light in the visual spectrum;the filter enhances contrast when observing brighter objects including the moon and planets
• Telescope eyepiece cutting light pollution;the filter has a mild effect of darkening the background of the night sky so that the fainter objects are more clearly seen contrasted against the blackness of space
• The filter effectively filters out selective wavelengths of low pressure sodium and other man made sources typically used in street lighting;although it is not a nebula filter; it enhances the views of deep sky objects by increasing the contrast of these objects against the background sky
• Premium quality metal rim and thread with blue glass lens;the filter will fit all standard sized 1.25"/2'' eyepieces and accessories;it is mounted in a nicely anodized housing and is threaded on both sides for stacking with other filters if necessary
• Standard filter thread for any 1.25"/2'' telescope eyepiece and other accessory;comes with a plastic box to keep it safe and clean when not in use

SV179 red dot reflex viewfinder simple, affordable, and effective red dot sighting device makes aiming your telescope.

• Electron beam gun evaporation with Ion assisted deposition coating technology for durability and resistance to scratching;as well as stability on CWL (central wavelength) no deviation affected by temperature change
• Planetary rotation system offers precision and homogeneity of coatings ensuring high value on transmission of pass-band and Optical density of off band
• 90% transmission of main nebula emission lines;such as Ha 656nm;OIII 496nm;500nm;SII672nm and H-beta 486nm
• 0.1% transmission of off-band;specifically the major emission lines of artificial light pollution;such as Na 589nm;Hg 435nm and 578nm
• Suitable for color CCD cameras and unmodified DSLR Urban optical filter can effectively suppress urban harmful light and improve the contrast of shooting target

• 50mm Guide scope will help guide you to capturing higher quality astrophotos. with its 50mm lens and smooth helical focuser, the versatile 50mm multi-use guide scope with helical focuser is an ideal addition to any astrophotographers collection of gear
• Multi-use guide scope with helical focuser features a built-in helical focuser that allows precise focus adjustments with zero flexure for rigid performance. obtaining a clear, sharply focused view of potential guide stars is quick and easy with this sturdy scope
• High power guide scope features a machined, knurled ring to make fine focus adjustments nice and easy, while a thumbscrew lets you lock-down the focuser in-place once adjustments are complete. the focuser boasts 8 mm of precise helical focus travel, plus telescoping drawtube housing provides up to 30 mm of additional back-travel if needed for your particular autoguider device
• This complete guide scope comes with two heavy-duty guide scope rings and a 3.5" long, 1.18"wide dovetail mounting bar, which is compatible with dovetail finder scope bases for easy attachment. the dovetail bar features five threaded through-sockets for versatile attachment options. the included guide scope rings feature six metal thumbscrews for precise aiming
• The quick guide scope with helical focuser also features male t-threads on the focuser collar for secure threaded attachment of guide cameras equipped with female t-threads

• Versatile 60mm aperture Guide Scope with a built-in helical focuser for precise focusing of potential guide stars; will help guide you to capturing higher quality astrophotos;an ideal addition to any astrophotographers collection of gear
• The helical focuser simply moves the attached device inwards or outwards while maintaining its orientation;this convenient feature means your field of potential guide stars will not rotate as focus is adjusted, further increasing ease of use
• For those nights when you don't plan to capture astrophotos exposures, this versatile Guide Scope can double as a straight-through finder scope with an optional 1.25" eyepiece installed;For example, inserting a 25 mm eyepiece creates a 9.6x60 finder scope, or you can insert one Illuminated Centering Eyepieces for use as a finder with illuminated crosshairs for easy aiming
• The focuser boasts 8 mm of precise helical focus travel;plus telescoping drawtube housing provides up to 35mm of additional back-travel if needed for your particular autoguider device;No extension tubes necessary; a compression ring fitting keeps any inserted autoguider cameras or eyepieces free of pesky scratches
• The Multi-Use Guide Scope with Helical Focuser also features male T-threads on the focuser collar for secure threaded attachment of guide cameras equipped with female T-threads

• 0.5x focal reducer cuts the telescopes focal length in 0.5 times of original's to get a wider field of view
• Fully anti-reflection coatings on all air-glass surfaces for increased contrast
• The focal reducer is great for visual use for a bigger FOV and is indispensable when CCD imaging
• Fully metal structure design;both the ends of the interface part is 28.5x0.6 thread
• Directly connect the interface to the eyepiece;there is a very good performance in both visual and photography

• SV183 IR pass filter; Sufficient reduction of seeing effects; heightened contrast; The Filter can darkens the twilight sky background; allowing mages of moon and planets to be taken at dawn or dusk
• Sturdy standard 1.25-inch filter; SV183 filter measures 1.25 inches and is suitable for standard 1.25-inch equipment
• Sturdy construction; The filter frame is made of high-grade alumina metal material; which is durable
• In addition to astronomical uses; the IR-Pass filter can be used for nature photography in the Near-IR; revealing stunning differences in plants; sky; and clouds
• SV183 filter cell is made of lightweight; strong metal and is CNC machined; sand-blasted; black anodized; The result is a super thin filter cell that will produce a clear aperture of 26mm

• Optical high precision double sided polishing to ensure that the parallelism is higher than 30 inch and high flatness 1/4λ; to ensure that does not affect the image quality
• Precision double sided optical coating;non two piece glue;effectively improve the transmittance and cut off depth
• Ion source assisted coating technology (IAD), to improve the density of the film to ensure that the filter wavelength to minimize the impact of temperature caused by the temperature drift
• High uniformity planetary wheel coating fixture to improve the uniformity of the filter wavelength
• Optical equipment professional fine sandblasting and anode treatment;the box to do extinction treatment to prevent reflection

The SVBONY Filter is suitable for 2 inch eyepieces and for viewing with single-lens reflex camera and CCD camera (M48 to M42 adapter exclude). Filters can be replaced very quickly, even when the camera is installed or the eyepiece is inserted.

• SVBONY Sulfur II 7nm Extra Narrowband Filter transmits a 7nm bandwidth of light that is centered at 672nm and drastically reduces other transmissions; including wavelengths of light that are responsible for light pollution
• Quality lens material;The SVBONY 2inch filters are made with Schott glass that has been multi-coated with an ion-assisted deposition technology to ensure scratch resistance and stability on the central wavelength or CWL
• Rugged metal frame;The SVBONY filter cell is made of lightweight; strong metal and is CNC machined; sand-blasted; black anodized; and then laser engraved
• Standard 2-inch thread size; Metal filter cell threads directly into the 2- inch barrel of your telescope eyepiece
• SVBONY 2inch SII-CCD filter is for the astrophotography; lets you increase the contrast when photographing deep sky objects; It stands out better against the night sky background; letting you see detail that was not apparent before

• UHC filters or light pollution reduction filters are designed to selectively reduce the transmission of certain wavelengths of light;especially those produced by artificial light
• Sky background is darker;and contrast of emission nebulae are noticeably improved;the perfect filter for viewing nebula from light polluted skies;or for boosting the contrast of nebula from dark sky sites
• Due to its ability to produce exceptionally sharp and clear images;this UHC filter is considered one of the most popular astronomy accessories;it can be used not only for celestial observations but also for astrophotography
• 1.25'' barrel diameter simply attach to eyepiece cased in a sturdy transparent case;standard filter thread for 1.25" eyepieces and other accessories
• Optical glass lens;aluminum frame;significantly reduces light pollution;great for city and suburban observation

Svbony 1.25'' moon, UHC, CLS filters combination.

• 7pcs filters set include most popular color planetary and moon telescope eyepiece filters;moon filter;CPL filter;5 color filters with 23A bright red;21 orange;12 yellow;56 bright green;82A bright blue
• CPL filter is mainly used for elimination of polarized;and enhances the contrast of the moon and planets in photographic images
• 5 color filters are an essential tool of the lunar and planetary;with red;green;blue;orange and yellow highlight features on Mars;Jupiter;and Saturn
• High quality aluminum alloy frame and optical glass with standard 1.25” filter threads suitable for 1.25” eyepieces and other accessories
• Moon and skyglow filter;Cuts down glare and brings out much more surface detail and gives you better contrast; It is a multi-band pass filter transmitting a high percentage of light in the visual spectrum; Effectively filters out selective wavelengths of low-pressure sodium and other man-made sources typically used in street lighting

The VPL Filter has premium quality metal rim and optics glass lens . Reduce glare and increase contrast of the Moon with the Svbony 1.25”/2'' VPL Filters. Also useful for extra bright planets as well as terrestrial viewing over sand or snow. We provide you with two sizes to choose from, 1.25'' and 2''.

Note: This polarizing filter is too thick and not suitable for SV226 filter drawers. 

Svbony 1.25" Plossl 40mm Eyepiece Fully Multi Green Coated Metal for Astronomy Telescope

Coated Metal for Astronomy Telescope  

The 60 degree wide Angle SV113 eyepieces offer a quality 4-element Plossl optical design at a super affordable price.

1. WA wide-angle field of view, comfortable observation,True FMC coating process: ultra-high transmittance broadband coating on the lens surface
2. Matting treatment: the edges of the lens are blackened, and the internal structure of the structure is matted to eliminate stray light.
3. All-aluminum alloy surface is sandblasted with satin oxidation, and the hand-held rubber design is more humanized.
4. Comfortable rubber eyewear design,Standard filter thread design
5. Mechanical engraving logo, never fade

• Extremely large 72-degree apparent field of view;affordable 18mm telescope eyepiece offers a wide field of view and superior performance apparent field offers expansive views of the moon;star clusters;and the Milky Way
• Sharp optimal performance with low chromatic aberration;high power and medium eyepiece fits for viewing surface and potholes details;It's a great Halloween birthday christmas gift
• Perfects for broad field observations from lunar;medium sized star clusters to wide range of cloudy nebulas and deep sky targets with extra sharpness
• 18mm telescope eyepiece offers a wide field of view and superior performance; 5-element design delivers sharp images with good color correction and contrast
• Standard 1.25” 31.7mm fitting diameter compatible with any astronomical telescope with 1.25" focuser;5-elemen fully multi-coated lenses with blackened edges and rotating adjustable eyecups allows comfortable viewing and lets eyeglass wearers see the entire field of view

1.For accurate polar and go-to alignment and centering guide stars for photography

2.Red LED-illuminated double-line reticle with a high-contrast 40°field of view

3. 12.5mm focal length and 11mm eye relief forcomfortable observing experiences

4.Fully Multi-coated optics & Blackened inner wall ensures high light transmission

5.The eyepiece is powered by 3* Cell battery, and the Illumination is adjustable.

All-metal mirror structure

48-degree wide field of view

FMC full broadband multilayer coating 

4-Element in 2 groups optical structures

M28.5*0.6 threaded standard for 1.25-inch interface

The lens edges and inside the barrel are light-removed.

The SVBONY SV149 Nikon camera lens to 1.25-inch eyepiece adapter is designed for digital Nikon AF lens. Not support Nikon Z Type Cameras

• Low-dispersion lanthanum glass;using advanced computer design;combinations of low dispersion and high refractive index optical glasses;and durable multilayer deposition coatings
• The 72 Series Argon-Purged waterproof extreme wide field eyepieces are optimized to produce high contrast;high resolution;and superior flat field characteristics
• The 72 Series eyepieces come with a removable and foldable soft silicone rubber eyecup for the comfort of the observer
• Fully multi-coated glasses for excellent image contrast and light transmission
• Sharp optimal performance with low chromatic aberration;watch the scenery;bright celestial observations;nebula and so on;It's a great Halloween birthday christmas gift

Svbony 1.25'' plossl 25mm eyepiece, fully multi-coated metal for astronomy telescope

The 25mm low power svbony eyepiece is a 4 -element premium symmetrical Plössl optical design

Zoom Eyepiece eliminates the need to change eyepieces so you can spend more time viewing the night sky instead of fumbling in the dark when you want higher or lower magnifications.