• SV215 zoom eyepiece is a good assistant for you to observe and take pictures of the planets;
• Click and stops design;
• 6-element of 4-group lens structure;
• fully multi-coated optics for remarkable sharpness;
• contrast and color correction.

• Dielectric coatings; super flat mirror with dielectric coatings to reduce reflected light loss; provide an over 99% reflective surface; good for astronomical viewing;
• The 1.25-inch nosepiece fits 1.25-inch telescopes and accepts standard 1.25-inch filters, eyepieces, Barlow lenses, and similar accessories; The 2-inch nosepiece is compatible with 2-inch telescopes and accommodates standard 2-inch filters and accessories. You can choose either 1.25inch or 2inch diagonal based on your requirements;
• 90 degree viewing angle; diagonal reflects the telescope’s light path 90 degree to provide a more comfortable viewing angle; best for observing objects overhead;
• Correct upside down and left right reversed image; the view image is upright; but left and right reversed if use the 90 degrees to your telescope;
• Brass compression ring; Built in brass ring and thumbscrew accessories avoid eyepiece to rotate during adjustments; effortless fixes more firmly and will not scratch your eyepieces barrels.

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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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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.

• 1.25" diameter; SV223 diagonal adapter can be combined with 1.25" eyepieces and barlow lens; suitable for any 1.25" telescope accessories;
• Stable installation; the SV223 dielectric mirror has a clicklock locking mechanism; which can realize ultra-fast clamping action and ensure the stable installation and use of the eyepiece; SV223 star diagonal not easy to fall off
• Image is clear and bright; High precision 11.5mm thick mirror substrate flat for optimal image stability. the SV223 dielectric mirror is equipped with a thick precision optical flat mirror with an enhanced 99% reflective dielectric coating; which has a large amount of light transmission and a good imaging effect
• High-quality aluminum material; internal antireflection baffling for highest contrast; which is light and stable; ensuring that the star diagonal is durable and can reduce the weight of the equipment without affecting the balance of the equipment
• Enhanced Protection Features: Internal safety stop prevents barrels from hitting the mirror. Stainless Steel compression rings (both on diagonal and adapter) to prevent barrels from marring.

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• 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

• 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 diagonal 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 telescope diagonal has a brass pressure ring; which can prevent surface damage and scratch marks when the eyepiece is used with the diagonal;
• 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 diagonal has M28.5x0.6mm filter thread; which supports the connection of 1.25 inches filter;
• 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 correct image prism diagonal has internal extinction treatment; and the acquired image is clearer and brighter.

• Enhanced Aluminum Die; the main mirror housing is made of precision molded ABS plastic and the two end barrels are precision machined from aluminum;
• 1.25 inches diameter; the SV221 diagonal mirror can be applied to a 1.25 inches telescope and a 1.25 inches eyepiece;
• With a brass pressure ring; the diagonal mirror has a brass pressure ring; which can prevent surface damage and scratch marks when the eyepiece is used with the diagonal;
• 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 diagonal mirror has M28.5x0.6mm filter thread; which supports the connection of 1.25 inches filter;
• 90 degrees design; the 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 has internal extinction treatment; and the acquired image is clearer and brighter.

Note: This diagonal can only be used with refractor telescopes and some catadioptric telescopes like Schmidt-Cassegrain, Maksutov-Cassegrain, etc. It not meant for use with Newtonian / DOB reflector telescopes or other variants of Newtonian telescopes.

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.

The Svbony 90 degree Diagonal coating is precision machined to achieve and maintain good optical alignment. A non-marring brass compression ring inside to secure your valuable eyepieces without any scratch