This 2inch-to-1.25inch filter adapter is compatible with SV226 2inch filter holder. You can easily use it to hold 1.25inch astronomy filters.

• Cut-off depth ≥OD4; highly efficient in blocking urban light pollution or other background light; use this multi-bandpass filter for astrophotography in urban without traveling long distances to the suburbs;
• Compatible with 99% astrophotography systems; if you have different astrophotography systems, no need to prepare dedicated filters, one SV240 can meet your needs due to its high compatibility;
• Photoing more kinds of targets; SV240 multi-narrowband filter select Ha,OIII,H-Beta wavelength effectively can cover almost photoing needs;
• High transmittance; the >90% transmittance in core wavelength of Ha,OIII, H-Beta, more objects for your astrophotography by using this multi-bandpass filter;
• Multi-bandpass filters; without multiple filters' combination for colorful images; rich color in your lens;
• Resistant of BORTLE 8; the multi-narrowband filters can be resistant from Bortle 1 to Bortle 8 cities, suitable for almost all urban;
• 300-1100 mm working wavelength; the wider coverage of this multi-narrowband filter allows it to have a strong ability to tack light pollution.

Note: Optical filters that use infrared light often cause halos in the NIR region; which are exacerbated by the halos produced by the filter itself.

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• 5-band filter captures light across a broader spectrum; Accurately reproduces the true colors of celestial objects;
• Multi-Broadband filter properly designed for starfield shooting and deep sky photography, enhance stars and celestial bodies details; making deep sky observations clearer;
• Over 90% peak transmittance;reduces light loss, boasts an SII-OIII-SII band average transmittance of over 85%; Enhances contrast between the target object and the background;
• 300-1000nm wavelength working range; multi-bandpass filter effectively combats light pollution; providing a broader coverage area;
• Max OD4 cut-off depth; astrophotography filters effectively block out unnecessary light; and provide stronger light pollution suppression.   

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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/4

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• This replacement filter holder is designed for SVBONY SV226 filter drawer;
• CNC one-piece molding; more precise production process; strong and durable;
• Can accommodate 2" round mount filters, as well as other 2" round filters with a width of 50.8mm and a thickness of 7.5mm;
• 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.

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• The SHO filter 5nm 2 inch is highly transparent, allowing the emission spectrum of the nebula to collect as much energy as possible by accumulating exposure. There is higher contrast and the level of the nebula is richer and more delicate.
• This filter set is not suitable for telescopes with a focal ratio below F/5;
• 2 inch mounted; The filter can thread directly into the 2 inch barrel of your telescope eyepiece.

Unboxing Video     SHO Filters Reviews by @CuivTheLazyGeek

Enjoy $20 off by using code: Cuiv20

This SV220 Dual-Band Telescope Filter 2 inches - SV226 Filter Drawer Combination is best for deep space astrophotography.

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• 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

• 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.

• 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

• The SVBONY Narrowband OIII filter is designed for nebula observation allowing 5nm bandwidth of light centered on a wavelength of 500.7nm through, and reducing the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapor, and both high- and low-pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere;
• OIII 5nm 2" Filter is designed to deliver 90% transmission at the 500.7nm line which provides you with well defined nebulae structures;
• 300-1000nm wavelength range; the SVBONY OIII 5nm 2" Filter transmits a 5nm bandwidth of light that is centered at 500.7nm;
• 2 inch mounted; the filter can thread directly into the 2 inch barrel of your telescope eyepiece.

Note: This OIII filter is NOT for use on the Sun, and also unsuitable for telescopes with a focal ratio below f/4 

• The SV227 SII filter blocks infrared wavelengths from 700nm to 1000nm so you don't need a separate IR-Cut filter;
• 2 inch mounted; the filter can thread directly into the 2 inch barrel of your telescope eyepiece;
• 300-1000nm wavelength range; the SVBONY SII 5nm 2" Filter transmits a 5nm bandwidth of light that is centered at 672nm;
• This SII narrow band filter reduces other transmissions; including wavelengths of light that are responsible for light pollution;
• The narrow bandwidth and high transmission rate of this filter will make you experience a major boost to contrast.

Note: This OIII filter is NOT for use on the Sun, and is also unsuitable for telescopes with a focal ratio below f/4

• SVBNOY H-Alpha 5nm 2" Filter blocks the transmission of contrast-killing light pollution wavelengths; improve contrast and detail;
• This H-Alpha filter also blocks infrared wavelengths from 700nm to 1000nm so you don't need a separate IR-Cut filter
• Allowing 5nm bandwidth of light centered on a wavelength of 656.3nm to pass through; 90% transmission;
• Astrophotography under a light-polluted night sky can be difficult; the solution is an H-alpha filter; the H-alpha cut-off filter works to filter out a large part of this light pollution;
• 2 inch mounted; the filter can thread directly into the 2 inch barrel of your telescope eyepiece.

Note: This OIII filter is NOT for use on the Sun, and also unsuitable for telescopes with a focal ratio below f/4

• 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.

• The Narrowband OIII 5nm filter is designed for nebula observation allowing 5nm bandwidth of light centered on a wavelength of 500.7nm through, and reducing the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapor, high- and low-pressure sodium vapor lights and the natural light caused by neutral oxygen emission;
• The H-Alpha 5nm is an extremely narrow emission-line filter that works by allowing a 5nm bandwidth of light, centered on the 656nm wavelength through, and blocking the transmission of contrast-killing light pollution wavelengths;
• The SII 6.5nm Extra Narrowband Filter transmits a 5nm bandwidth of light that is centered at 672nm and drastically reduces other transmissions, including wavelengths of light that are responsible for light pollution. Due to the narrow bandwidth and high transmission rate of this filter, you will experience a major boost to contrast;
• The Blocks infrared wavelengths from 700nm to 1100nm so you don't need a separate IR-Cut filter, suitable for used for deep sky photographic and all are NOT for use on the Sun; 90% transmission of the filters can block the light from mercury and sodium vapour lamps; Standard M28.5x0.6 thread interface, can de directly into the 1.25 inch barrel of your telescope eyepiece.

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Visual Kit includes:

68 Degree Eyepieces 6/9/15/20 mm, SKU: F9152A-F9152B-F9152C-F9152D

1.25 inch Laser Collimator, SKU: F9123A

1.25 inch Moon UHC CLS UV/IR Cut Filters Combination, SKU: F9114L-F9131A-F9155A-F9127A

SV137 2x Barlow 1.25Inch FMC Internal Brass Ring with Perfect Matting Treatment, SKU: W9106A

• 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 

• 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 SKU included in these combinations correspond to the following:

• SV220 Dual band Filter 7nm 2inch, SKU: W9172B
• SV119 M48 Extension Tube kit of 5mm 10mm 15mm 30mm, SKU: F9190A
• UV-IR Cut Filter, SKU: F9127B
• UHC Filter, SKU: F9131B
• SV132 H-Beta Narrowband Filter 2inch, SKU: W9102B
• SV226 Filter Drawer, SKU: W9184A
• SV164 Dark Filter, SKU: W9124B
• SV133 filters wheel 2inch, SKU: W9103B

Unlock the full potential of your telescope equipment for moon observing with our versatile and multifunctional accessories! Introducing the Mk105 Maksutov-Cassegrain telescope OTA,  SV231 Fringe Killer Color Correction Filter 1.25/2inch, SV182 6x30 Right-Angle Correct-Image finder scope, SV188P 1.25inch diagonal, Moon Filter 1.25/2inch, SV183 IR Pass 685nm Filter Telescope Filter 1.25 Inch, 1.25/2inch UV IR Cut Filters, SV135 Zoom Eyepiece 1.25inch 7mm to 21mm, SV505C Color Planetary Camera, SC311 WIFI Astronomy Camera, SV225 AZ-mount, 1.25 inch 0.5x Focal Reducer. You can choose whatever you like.

• 2" T to M42*0.75 Adapter Thread for Astronomy Monocular Telescope Mount Adapters Accept 2" Filter and Camera;
• The SVBONY City Light Suppression broadband filter is designed to improve the visibility of various Deepsky objects. It selectively reduces the transmission of wavelengths of light pollutants, specifically those produced by artificial lightings(including mercury vapor lamps, both high & low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere);
• Light Pollution Reduction UHC Filters are designed to selectively reduce the transmission of certain wavelengths of light specifically those produced by artificial light;
• Moon filter can reduce glare and increase contrast of the moon, so you could see more moon details, also useful for extra bright planets as well as terrestrial viewing over sand or snow;
• The UV IR cut filter uses the very latest coating technology to deliver the finest filtration quality, and lifetime durability. If you use DSLR camera, CCD camera, or telescope, it absolutely will be one of your best choices.

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• This UV/IR Cut off filter blocks undesirable ultraviolet and infrared rays that may interfere with obtaining the high contrast and high quality images possible with a digital sensor
• It serves as a permanent lens protector;digital imaging with DSLR cameras;CCD cameras;and modified WebCams;or telescope
• True optical quality glass substrate and coatings achieves greater detail;less chromatic aberration;more natural colors and finer color gradation
• Combine with any standard 1.25” filter threads for 1.25" eyepieces and other accessories to deliver the sharpest images possible;reducing ghost images caused by IR radiation
• Comes with a plastic box to keep it safe and clean when not in use.

• 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

• 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