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Model	SV223	SV223	SV222	SV222	SV221	SV221	SV188/P	SV188/P
SKU	W9180A	W9180B	W9179A	W9179B	W9178A	W9178B	F9171A	F9171B	W2733A
Deflection Angle	90°	90°	45°	90°	90°	45°	90°	90°	90°
Diameter	1.25inch	2inch	1.25inch	1.25inch	1.25inch	1.25inch	1.25inch	1.25inch	2inch
Type	Mirror	Mirror	Prism	Prism	Mirror	Prism	Mirror	Mirror	Mirror
left and right imaging	reverse	reverse	forward	forward	reverse	forward	reverse	reverse	reverse
Up and down imaging	forward	forward	forward	forward	forward	forward	forward	forward	forward
Equivalent optical path (mm)	85.5	109.1/118.6	93	65.6	73	86	78.5	78.5
Effective aperture	25mm	43mm	16mm	19mm	29.5mm	19mm
Advantage	Coaxial locking, high-reflective dielectric coating, high surface accuracy	Coaxial locking, high reflective dielectric coating, high surface accuracy, dozens of layers of coating, high surface accuracy	Suitable for astronomical observations	Suitable for astronomical observations	Suitable for astronomical observations	Suitable for astronomical observations		Highly reflective dielectric coating

The image is brighter, bringing a visual experience to the exterior and interior!

SV223 Diagonal brings real observation experience! That's exactly what this accessory offers you. Let the image quality provided by the telescope really enter your eyes. Diagonals offer 99% reflectivity and are finished in an attractive carbon fiber exterior, visually pleasing both the exterior and interior.

Wide range of applications; the SV223 diagonal is used in conjunction with astronomical telescopes and can be used for astronomical scene observations such as planets and deep space

Image is clear and bright; the SV223 diagonal 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

90 degrees design; the diagonal of SV223 adopts a 90 degrees design; which can provide you with a better observation experience during visual observation

Stable installation; the SV223 diagonal has a clicklock locking mechanism; which can realize ultra-fast clamping action and ensure the stable installation and use of the eyepiece; which is not easy to fall off

Brass compression ring design; SV223 has a brass compression ring on the diagonal; which provides a uniform pressure area when holding the eyepiece; can firmly fix the eyepiece, and is not easy to damage the eyepiece and other telescope accessories

Carbon fiber material; the SV223 diagonal is made of carbon fiber material; which is light and stable; ensuring that the zenith mirror is durable and can reduce the weight of the equipment without affecting the balance of the equipment

1.25" diameter; SV223 diagonal can be combined with 1.25" eyepieces and barlow lens; suitable for any 1.25" telescope accessories

1.25" diameter; SV223 diagonal can be combined with 1.25" eyepieces and barlow lens; suitable for any 1.25" telescope accessories