Some reasons to buy the APO spooting scope
The SA401 is our new product, and we will push harder to make it become our best popular spotting scope. So as our best spotting scope, there must be some reason to choose it. Read More
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The new APO spotting scope-SA401
The best spotting scope for birding, hiking, and star watching. Read More
Know better about SA401 85mm APO spotting scope
As the summer is coming, the exploration, hunting, and bird watching become increasingly approaching！Now to better facilitate our explorers to process activities, we provide really the good assistant-SA401 20-60 85mm APO spotting scope. In the article, I introduce its strong points. Enjoy! Read More
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