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We will redefine testers in a new way and hope we can cooperate with users who are interested in our products better in the future. If you are interested in it, please see our introduction.  ...

Hope we can discover better and beautiful phenomena in the new year! Clear Sky  ...

SA408 Binocular Comfort Carrying Strap  ...

The collection of pictures for the astronomical calendar has ended, click to view the list of winners.  ...

In general, do not use drying tubes unless condensation is confirmed on the camera.  ...

We need your ideas ！  ...

Some tips about our promotion  ...

The zoom eyepiece is designed to provide the best balance of contrast, comfortable eye relief, and resolution for the critical planetary observer, particularly those with ultra-premium short focal length refractors.  ...

High-reflection dielectric coating process , double star-seeking dovetail groove design....MK105 was the first Mak telescope we released and our first foray into planetary telescope development.  ...

As the second camera for deep space, SV605CC is designed with a diagonal 15.968mm （Type 1）CMOS sensor with a color square pixel array and 3.76μm x 3.76μm per pixel. The sensor incorporates 14 bit A/D converter, the 14-bit digital output makes it possible to readout the signals of 9.07M effective pixels at high-speed of 20 FPS. Read out noise is as low as 1.0e which makes sure the highly suitable for high definition, low noise deep space objects imaging.  ...