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Daily Archives:October 19,2021

What diagonal should I choose, Prism or Mirror type?

In this article, I take the SV188P and SV138 as the example, introduce each kind of diagonal's advantages and shortcomings for the beginners, the 45° is more suitable for the terrestrial, or long focus Schmidt-Cassegrain and Maksutov-Cassegrain telescopes, while it induces the CA, and so favored by today's market......  ...

Read more  SV188P,  diagonal,  star diagonal,  beginner,  SV138,  accessory