Svbony 1.25 inch 45 degree arcing prism diagonal allows you to enjoy a great optical experience. Designed for refractor and catadioptric telescopes, not for reflector telescopes.
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
SVBONY 45 Degree Diagonal has BK7 prism to ensure high-quality optical characteristics. The black line design inside the lens barrel can prevent glare and make the image clearer.
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.