Apochromatic correction using AD elements. Mostly used on tele primes and zooms.
减低色差。主要用于远程素及缩放。
The Mak-Newtonian design provides large aperture apochromatic performance with exceptional field correction in a compact, affordable package.
这个马卡-牛反的设计提供大口径的高消色差性能并伴有优异的视场矫正。望远镜采用了坚固的镜体。
The Mak-Newtonian design provides large aperture apochromatic performance with exceptional field correction in a compact, affordable package.
这个马卡-牛反的设计提供大口径的高消色差性能并伴有优异的视场矫正。望远镜采用了坚固的镜体。
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