无论是官网还是绝大部分经销商网站都告诉你那个是ED,而不是萤石。“Construction | 2-element ED lens with MHC Multi-Coating |
连评测里都写的“
OPTICS QUALITY SEEMS TO BE GREATThe Sky-Watcher company doesn’t reveal a specification for the glass they used for this telescope, so I don’t know if it’s the FPL-53 or not, yet I don’t see any signs of chromatic aberration or other color-correction imperfections on my astrophotography done with this telescope. There is little vignetting, but easily correctable in post-processing (I always recommend taking flat frames anyway).”
借“synthetic fluorite element”这个描述打擦边球的太多了,而且自己上下描述都说是矛盾的。在这个价位别想萤石了,真是萤石晶体,还不够料钱。
重点是它自己贴的标签都是72ED……
|