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Mar 19, 2020
svbony
SV503 ED Telescope
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Is SV503 Telescope an APO?

SV503 telescope is designed with single ED glass, not an APO. Read More

Mar 20, 2020
svbony
sv503 telescope, coronavirus, SV25 Refractor, Covid-19
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Home Activities During the Current CoronaVirus Crisis

How to spend the time during current coronacirus crisis, highly recommend the astronomy observation with Svbony SV503 and SV25 telescopes. Read More

Mar 20, 2020
svbony
APO, SV503 Doublet, SPL-51, Achromatic Lens
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$Difference Between APO & Achromatic Lens Under Diffraction Ring$

Difference Between APO & Achromatic Lens Under Diffraction Ring

Test the APO and Achromatic, make sure the difference under diffraction ring, SV305 doublet is quality achromatic lens with SPL-51 ED glass. Read More

Mar 20, 2020
svbony
SV154 Eyepiece, 70 degree eyepiece, SWA eyepiece
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2020 New SV154 70 Degree Eyepieces

2020 New SWA eyepiece Svbony SV154 70 degree eyepieces for your astronomy telescope. Read More