• Male thread and female thread both are M48*0.75mm;Solving spacing problems in astrophotography and eliminates a range of focusing problems;
• Sturdy material;Fully metal construction and anodizing aluminium process; durable for long time use;
• Meet different needs;The required spacing can be achieved by combining several extenders of differing lengths; You can use 1 piece; 2 pieces ; 3 pieces or 4 pieces of the extension rings as you like;
• SV119 extension tube for getting the correct image scale or the exact spacing required for reducers or field flatteners;
• Made of fully aluminum alloy and durable;

Bigger size, won't shake, and provide steady support for the big size binoculars like SV206 Porro Binocular.

The SVBONY SV157 1.25 "extension tube is threaded at the end to accommodate a standard 1.25" filter. It is made of all-metal material and has a long service life. The inside of the SV157 has full threads to reduce reflected light.

F9110A extension tube with M42 female thread can be used to connect SV28 spotting scope with astronomy camera, such as SV105, SV205 and etc.

SVBONY SV159 SCT to 2" Eyepiece suitable for all schmidt-cassegrains telescope Brass Ring inside the tube- protect the eyepiece from scratching.

Svbony M42 T adapter can connect with W1077A and W2054A camera adapters (sold separately) to connect your 1.25'' telescope to your Nikon and Canon cameras.

Fully metal telescope eyepiece adapter of four different size suitable for almost all the eyepieces

• Universal lens warmer. Lens Warmer prevents telescope camera lens from fogging dew by warming up the lens on a camera or telescope. It also warming up water bottle and use as a knee strap;
• USB port design, 1.8m usb cable length. You can connect it your power bank or any other power source with a USB port. 1.9A to 2.0A input current, 5V input voltage;
• Temperature regulator adjustable. Strong medium weak heating modes that you can adjust the temperature according to your requirements;
• Design for telescope. 50mm bandwidth does not affect the focusing and no dark angle of the field of view, fit lens outer diameter below 127mm;
• Heating fast and evenly. Built in aluminum make heating evenly. Alloy fiber heating wire provides super fast. Three layer insulation material to reduce heat dissipation.

• The O-III filter completely blocks virtually all other visible wavelengths of light so views of nebulas are optimized;increases contrast through selective filtration-Anti-reflection coated to prevent glaring and ghosting
• The filter made from high-grade glass with dichroic interference and antireflection coatings;not only useful at light-polluted sites; the contrast is also increased at dark sky sites;it can be used with all 2" eyepieces
• Narrowband filter do not eliminate the effects of light pollution or increase the object’s brightness;in many cases, they increase the contrast between nebula and night sky, not brightening the nebula
• The 2" O-III filter useful for large aperture telescopes through which the light of the Moon can be extremely overwhelming. Allowing just for the Double Ionized Oxygen lines between 495.9nm to 500.7nm to pass through at 90%
• Astrophotographic;The filter enhances contrast during visual observation of gaseous and planetary nebulae in all sky conditions; 2" filter allows high-contrast imaging even in areas with strong light pollution

New mini portable table tripod, easy to set up and store, ideal for outdoor, travel etc.

• Two tube rings made of metal;the guide scope rings are suitable for small and medium-sized guiding telescopes;70mm compact deluxe finder guidescope kit;ideal for astrophotography for mounting a guide scope parallel to the main telescope;
• The mounting bar has two M6 through-holes on both sides for easy adaption to rings. and three threaded through-holes;the center hole has 1/4"-20 threads and the two larger holes on either side of center have M8 x 1.25 threads;
• Solid metal guide scope rings for compact finderscope or guidescope with knurled metal screws. big screws with maximum grip allow easy use - even with gloves;
• The adjustment crews have teflon inlays for avoiding unaesthetic scratches and pressure marks on the telescope while still ensuring reliable clamping;
• The inner diameter of the tube rings is 70 mm for telescopes between 43 to 70mm tube diameter can be mounted adjustable;

360 degree horizontal adjustable angle and 120 degree vertical adjustable angle plus 90 degree rotation of tripod head provides variable photography angle to meet the use of different sight

• 4 removable Velcro internal padded divider that can store your high-value telescope accessories;
• Double padding layers internally to prevent damage to telescope equipment and eyepieces and so on. An internal padded divider makes sure these astronomical accessories are never scratching each other;
• This carrying case features a removable shoulder strap and hand-carry strap, so you can easily take your telescope anywhere;
• Installed with unbreakable metal D-rings that are tightly connected to the bag using double stitched straps;
• PVC coated heavy duty bottom is used to protect the bag from rough surfaces.
• Note: Suitable for SV550 80 and SV503 80

• 1.25 inch moon filter reduce the amount of light entering the eyepiece and increase the eyepiece contrast
• The moon filter reduces the glare;allowing transmission of only 13 percent of the reflected ligh;which means you can see the surface more clearly and study the Moon in greater comfort
• Allow for maximum contrast of lunar detail enhances the contrast of the moon and planets in photographic images
• Neutral colored optical glass does not change the moon's natural color
• Have a standard 1.25 inch filter thread (M28.5 x 0.6);It's a great birthday christmas gift

• SV132 H-Beta eyepiece filter makes it possible to view the elusive Horsehead, California, and Cocoon Nebulas in dark skies;Great used with a moderate to large aperture telescope and clear dark skies
• Optical high precision double side polishing; Filter substrate is fine-optically polished to 1/4 wave and <30 parallelism over both surfaces; Avoid halos
• Precision double-sided optical coatings improve transmission and cut-off depth; Executes with a transmission of over 90% and completely rejects light pollution
• High value transmission of pass-band and optical density of off-band is assured through planetary rotation system, a homogenous and precise coating procedure; The high optical quality of SV132 filters guarantees no loss in sharpness or contrast
• Filter with metal mount 1.25" filter threads; Threaded to fit 1.25" eyepieces and threaded diagonal barrels

The SV188 mirror diagonal is suitable for refractors, Celestron EQ, Meade Infinity, and similar telescopes. It is not suitable due to the length reflectors for Newton.

• Sturdy standard 1.25-inch filter; SV164 dark frame imaging filter measures 1.25 inches and is suitable for standard 1.25-inch equipment; the filter frame is made of metal for durability
• Quickly capture dark frames to optimize photo quality; opaque filters block all light from the imaging camera sensor; help remove dark currents; especially in astrophotography; guarantee high-precision pictures
• Easily eliminate camera noise and hot pixels; Dark frame acquisition helps remedy such noise and "hot pixels" by canceling out these disruptive effects during image processing
• SV164 1.25-inch dark frame imaging filter is threaded and can be directly connected to your filter wheel; allowing you to achieve fast conversion between different filters; very convenient
• High quality packing box; the included foam-lined plastic case will keep your dark frame imaging filter safe during transport and storage

Svbony spotting scope could work with Canon or Nikon camera, then you will need this Svbony photography extension tube.

• Compatible with iphone; iphone 5; 5s; 6;6 plus; 7;7plus; Sony;Sony Xperia Z;Samsung Note; Samsung Galaxy S7; Galaxy 7;Galaxy 5; Galaxy Note 5; Samsung Note 4;ECT; Moto G5+ and many other brands;
• Fits eyepiece diameter from 25 to 48mm and 1.25" telescope; not fit 2" eyepieces; compatible with microscope; telescope; binoculars; monocular; compact spotting scope (SV28,SV28Plus,SV13, etc); binocular; night vision monoculars;
• Aluminum alloy shell; sturdy durable and lightweight; the phone clamp made of high strength PA plastic and features adjustable locking mechanism with a steel bolt not a spring;
• Works great for the phone in the up and down position taking pictures and recording sideways or in distant; keys capture the best videos of world successfully is practice and patience;
• This phone clamping features adjustable locking mechanism with a steel bolt (not a spring); Phone is protected by High density EVA pads.

Note: This phone adapter is not suitable for SV406P, SA405 or SA401 Series.

• Lens cleaning 3-piece set, it is made of environmental friendly and non-toxic material;
• Use the lens dust blower blow away the dust on the surface from your lens, and then use the microfiber cleaning cloth wipe it, this can help you extend the life of the product;
• lens brush in it, can be used on digital camera sensors/lens/telescopes/computer keyboards etc;
• This cleaning set is very helpful for your lens.

• SVBONY SV127 1.25 Inch four color eyepiece filter with M28.5*0.6 thread standard; you can use color filters to accentuate subtle details on planets, comets, and the Moon by selectively increasing contrast between features and markings of different hues
• #15 Deep Yellow Planetary Filter; Boosts contrast of lunar features;accentuates red and orange features on Saturn; Jupiter;and Mars; reveals low-contrast cloud detail on Venus
• #25 Red Planetary Filter; Enhances Martian surface details in large telescopes; reveals cloud definition on Venus;accentuates bluish cloud regions on Jupiter and Saturn
• #58 Green Planetary Filter; Enhances contrast of blue and red structures on Jupiter (including Red Spot);melt lines around Martian polar ice caps, accentuates Saturn's cloud belts
• #80A Medium Blue Planetary Filter; Enhances details in Jupiter's belts and Red Spot; high clouds and polar caps on Mars; lunar surface details; Venus cloud features