SV188P diagonal uses a high-reflective dielectric coating; more durable and more reflective than enhanced aluminum coating; reflectivity is up to 99%; for maximum field of view brightness and clarity
2-inch dielectric mirror diagonal; suitable for 2-inch telescopes and eyepieces; supports 2-inch filter installation; comes with a 2-inch to 1.25-inch converter; can be connected to 1.25-inch eyepieces; barlow and other telescope accessories
90 degree viewing angle; provides a more comfortable viewing angle to observe the starry sky above; provides an upright image; comfortable observation; reducing the steps of post-image processing
SV135 7 mm to 21mm adjustable focal length;SV135 7-21mm zoom eyepiece equivalent to multiple eyepieces ;obtain higher magnification with short focal length;It could bring you a better observation experience in a comfortable situation with high-contrast imaging
18mm - 16.3mm comfortable eye relief; especially for eyeglass wearers ;designed primarily for viewing landscapes and astronomical observations of lunar surfaces; planets; nebulae; clusters; and diffuse nebulae
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SVBONY SV188P Dielectric Mirror Star Diagonal, 90 Degree Mirror Diagonal, 99% Reflectivity Dielectric Coatings with Brass Compression Rings (2 inch) SVBONY SV135 Zoom Eyepiece, Zoom 7 to 21mm 1.25 inch Telescope Eyepiece, 6 Element 4 Group Telescope Accessories for Astronomic Telescopes Visual