The recognized brand is "BARSKA", and its Chinese name is "Baska". BARSKA claims to be the world's leading American manufacturer of high-quality sports optical equipment and accessories.

What Ohei used was a 12x50 or 45 objective lens, that kind, but it was not a good mirror. And hey, the trademark is reversed, which shows that O'Hei is going against the trend, just like Dulles coveted North Korea. But Aohei didn't take it down because the front cover can be removed and a tripod adapter can be installed. Because it is not screwed in place, the trademark is reversed. It must be either a copycat from a major country, or it is not screwed in place. This mirror can focus quickly, but its optical performance is average. The high brightness of the coating is not good, and it reflects a lot of light, so it is relatively dark.

In addition to the early light blue and light blue-violet coatings that increase the light transmittance, the new coating can also increase the light transmittance, and can effectively filter ultraviolet rays and perform well under strong light and high temperatures. Good contrast effect. The effect of this very bright coated mirror cannot be achieved.

In addition, the design of this mirror is not suitable for nitrogen filling and waterproofing, so this process is definitely not required. It should be a telescope for general travel. It can filter out hot sandy beaches and strong reflections, but the dark light effect is very poor. There is no shock-proof armored rubber layer on the outside, and it cannot be filled with nitrogen. So, not very good. Of course, this kind of mirror is more expensive to produce in the United States. They are made in several large factories in China, purely because they are cheap. Aohei's mirrors are very similar to those supplied by Zhejiang Village:) Don't underestimate it, Zhejiang not only wins a large number of general distributors of telescopes, but also receives a large number of foreign orders. Most of the mid-to-low-end telescopes are made in China, such as prism phase coating and other equipment. Domestic companies such as Yunguang, Xiguang, Taizi Liko, and Wuxi 3304 also have them.