Industry News
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The history of Spotting Scope
In 1611, the German astronomer Kepler took two pieces of lenticular lens as the objective and the eyepiece, the magnification is obviously improved, later people regarded this optical system as the Kepler telescope. In 1757, Du Grand through studying of glass and water refraction and dispersion...Read more -
How to choose a telescope
How to choose a telescope is a difficult thing, it is not only a practical equipment,but also is an expensive leisure supplies, the majority of people are under the situation of food abundance, choose it as a leisure sport tools. Taking part in outdoor sports, watching sports, watching cabaret,...Read more