SV503 80ED F7 Doublet Refractor review
In-depth review of the SV503 80ED F7 doublet refractor: Testing optics, chromatic correction, and performance for planetary/DSO imaging with its 0.8x reducer. Read More
Do you want to spot a dance of a half-trillion stars?
Do you want to spot a dance of a half-trillion stars? Hi, everyone. Today we are talking about how to choose a refractor telescope. Read More
My SV503 70mm F6 experience
In a Bortle 6 area, I wanted a light and easy setup, seeking for darker skies...... Read More
Interview with users of SV503 telescope 3 -Harald Becher “ interest = work”
Today we invite Harald Becher to do this week's SV503 interview. When the interest becomes your work, everything is getting full of fun...... Read More
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