Science Education Supplies By SVBONY

• 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

• 50mm objective lens diameter; 360mm focal length; 1.25-inch optical structure system; make the images brighter and clearer; fully meet the basic needs of astronomical telescopes in children; with 5X20 finder scope can help kids locate objects faster and earlier
• Fully coated optical lens; the lens system uses FC full surface coating technology to ensure basic optical imaging requirements; with standard 1.25\" K20 eyepiece allow you to view clear; crisp images
• 1.25-inch 45-Degree Erect Image Prism; land and sky dual-use; Imaging conforms to normal observation habits; humanized configuration; especially for children customers; perfect for Astronomical observation and Land viewing
• Lightweight table-top tripod; the design of tripod shape makes the observation more steady and firm; durable and safe to use; stable aluminum alloy bench stand with 360 degree horizontal adjustment and vertical adjustable range of approximately 90 degrees
• Easy to carry and set up; no tool needed and can be set up in a minute; brings your younger astronomer into a exploration world; suitable size and light weight make it easy to carry; using it with or without tripod and take it everywhere you want to go

• The SV216 Barlow lens adopts a 4-piece telecentric design; which effectively prolongs the focal length of the primary mirror without introducing chromatic aberration and vignetting problems that bother users; offers excellent spherical aberration control; resulting in a flatter field of view than standard Barlow lens
• The magnification of the SV216 Barlow lens is constant at 2 times; the 4-piece design of the Barlow lens and the optimized optical structure ensure that the magnification factor of the Barlow lens remains unchanged no matter where the Barlow lens is installed in the optical system
• SV216 2x Barlow lens adopts 3 screws design and coaxial locking device; improving the concentricity of the optical axis of the system can significantly improve the quality of captured images
• The 4 lenses of the SV216 Barlow lens are fully multi-layer enhanced coating; which makes the picture bright and sharp; the edges of the lens are blackened to eliminate internal light scatter to maximize image contrast
• The low magnification eyepiece is matched with the SV216 telecentric 2x 4-element Barlow lens; which can enjoy the magnification effect of the high magnification eyepiece while the eye relief distance is still within the comfortable observation range of the human eye
• 1.25-inch interface; the SV216 Barlow lens has a 1.25-inch interface; which can be installed with standard 1.25-inch eyepieces; filters and zenith mirrors to make it easy to use
• Brass compression ring; the brass compression ring firmly fixes the eyepiece in place without damaging the matching accessories

• The SV219 dovetail plate provides a platform for attaching the telescope to the equatorial mount; this is important for installation requirements; and will increase the stability of the equipment setup
• This dovetail mount attaches to the base of a variety of popular V-style mounts, and the \"narrow\" dovetail mount also fits a variety of smaller alt-azimuth mounts
• The universal dovetail is 300mm/11.81in long and has two screw holes: 3/8\"-16; 1/4\"-20; Compatible with V-Style saddles for Equatorial OTA mounts
• This V-Style dovetail plate mounts bolts with a 105mm continuous groove that easily accommodates any bolt spacing and balance needs
• The dovetail board is installed with precision; machined from aluminum alloy with black anodized treatment, the surface is hard, and the dovetail is more durable and has a longer service life

• Smooth SV181 Rack and Pinion Focuser for reflector telescopes accepts 1.25inches eyepieces
• The gear can be fine tuning; You can adjust the focal length by the gear; Focuser Travel is 65mm; and fine tuning more accuracy
• Brass ring design; Internal brass ring that the set screw hits to hold your 1.25inches eyepiece inside for eliminates marks on your eyepiece barrel
• Internal matting design; the inside of the item fully threaded to minimize reflections
• Come with 1.25 inch dust cover; It can protect your equipment from dust; Thereby extending the service life of the equipment

• Enhanced Aluminum Die; the SV221 diagonal mirror is designed with enhanced aluminum mold; which has higher light transmittance and clearer vision
• 1.25 inches diameter; the SV221 diagonal mirror has a diameter of 1.25 inches; which can be applied to a 1.25 inches telescope and a 1.25 inches eyepiece
• With a brass pressure ring; the SV221 diagonal mirror has a brass pressure ring; which can prevent surface damage and scratch marks when the eyepiece is used with the SV221
• Supports 1.25-inch filters features internal extinction treatment and supports the connection of 1.25-inch filters; Offering versatility for various observations
• With filter thread; the SV221 diagonal mirror has M28.5x0.6mm filter thread; which supports the connection of 1.25 inches filter
• 90 degrees design; the SV221 diagonal mirror 90 degrees deflection angle design; you don't have to bend over when performing visual observation; and the observation experience is more comfortable
• Internal extinction design; the SV221 diagonal mirror has internal extinction treatment; and the acquired image is clearer and brighter

• 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

• 102mm objective lens diameter and f/7 focal ratio telescope OTA; large objective lens brings more lights into the scope body and you will get more bright and clear image
• Doublet air spaced achromatic S-FPL51 ED glass provides you less chromatic aberration image
• Crisp Image; ultra wide band multi-layer coating technology; 102mm aperture optics and retactable lens hood deliver bright wide-field images with sharp resolution
• 90mm back focus; it comes with dual focus rack and pinion focuser with focus knob cover; you can get precious focus easily
• Package includes; 102mm refractor OTA; 2 inch to 1.25inch adapter;metal hoop and dovetail; objective focuser wheel cover; a package with die-cut foam insert

• 50mm objective lens diameter; 360mm focal length; 1.25-inch optical structure system; make the images brighter and clearer; fully meet the basic needs of astronomical telescopes in children; with 5X20 finder scope can help kids locate objects faster and earlier
• Fully coated optical lens; the lens system uses FC full surface coating technology to ensure basic optical imaging requirements; with standard 1.25\" K20 eyepiece allow you to view clear; crisp images
• 1.25-inch 45-Degree Erect Image Prism; land and sky dual-use; Imaging conforms to normal observation habits; humanized configuration; especially for children customers; perfect for Astronomical observation and Land viewing
• Lightweight table-top tripod; the design of tripod shape makes the observation more steady and firm; durable and safe to use; stable aluminum alloy bench stand with 360 degree horizontal adjustment and vertical adjustable range of approximately 90 degrees
• Easy to carry and set up; no tool needed and can be set up in a minute; brings your younger astronomer into a exploration world; suitable size and light weight make it easy to carry; using it with or without tripod and take it everywhere you want to go

• The SV216 Barlow lens adopts a 4-piece telecentric design; which effectively prolongs the focal length of the primary mirror without introducing chromatic aberration and vignetting problems that bother users; offers excellent spherical aberration control; resulting in a flatter field of view than standard Barlow lens
• The magnification of the SV216 Barlow lens is constant at 2 times; the 4-piece design of the Barlow lens and the optimized optical structure ensure that the magnification factor of the Barlow lens remains unchanged no matter where the Barlow lens is installed in the optical system
• SV216 2x Barlow lens adopts 3 screws design and coaxial locking device; improving the concentricity of the optical axis of the system can significantly improve the quality of captured images
• The 4 lenses of the SV216 Barlow lens are fully multi-layer enhanced coating; which makes the picture bright and sharp; the edges of the lens are blackened to eliminate internal light scatter to maximize image contrast
• The low magnification eyepiece is matched with the SV216 telecentric 2x 4-element Barlow lens; which can enjoy the magnification effect of the high magnification eyepiece while the eye relief distance is still within the comfortable observation range of the human eye
• 1.25-inch interface; the SV216 Barlow lens has a 1.25-inch interface; which can be installed with standard 1.25-inch eyepieces; filters and zenith mirrors to make it easy to use
• Brass compression ring; the brass compression ring firmly fixes the eyepiece in place without damaging the matching accessories

• The SV219 dovetail plate provides a platform for attaching the telescope to the equatorial mount; this is important for installation requirements; and will increase the stability of the equipment setup
• This dovetail mount attaches to the base of a variety of popular V-style mounts, and the \"narrow\" dovetail mount also fits a variety of smaller alt-azimuth mounts
• The universal dovetail is 300mm/11.81in long and has two screw holes: 3/8\"-16; 1/4\"-20; Compatible with V-Style saddles for Equatorial OTA mounts
• This V-Style dovetail plate mounts bolts with a 105mm continuous groove that easily accommodates any bolt spacing and balance needs
• The dovetail board is installed with precision; machined from aluminum alloy with black anodized treatment, the surface is hard, and the dovetail is more durable and has a longer service life

• Smooth SV181 Rack and Pinion Focuser for reflector telescopes accepts 1.25inches eyepieces
• The gear can be fine tuning; You can adjust the focal length by the gear; Focuser Travel is 65mm; and fine tuning more accuracy
• Brass ring design; Internal brass ring that the set screw hits to hold your 1.25inches eyepiece inside for eliminates marks on your eyepiece barrel
• Internal matting design; the inside of the item fully threaded to minimize reflections
• Come with 1.25 inch dust cover; It can protect your equipment from dust; Thereby extending the service life of the equipment

• Enhanced Aluminum Die; the SV221 diagonal mirror is designed with enhanced aluminum mold; which has higher light transmittance and clearer vision
• 1.25 inches diameter; the SV221 diagonal mirror has a diameter of 1.25 inches; which can be applied to a 1.25 inches telescope and a 1.25 inches eyepiece
• With a brass pressure ring; the SV221 diagonal mirror has a brass pressure ring; which can prevent surface damage and scratch marks when the eyepiece is used with the SV221
• Supports 1.25-inch filters features internal extinction treatment and supports the connection of 1.25-inch filters; Offering versatility for various observations
• With filter thread; the SV221 diagonal mirror has M28.5x0.6mm filter thread; which supports the connection of 1.25 inches filter
• 90 degrees design; the SV221 diagonal mirror 90 degrees deflection angle design; you don't have to bend over when performing visual observation; and the observation experience is more comfortable
• Internal extinction design; the SV221 diagonal mirror has internal extinction treatment; and the acquired image is clearer and brighter

• 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