SkyWatcher MN190 Maksutov Newtonian 马克苏托夫牛顿
分类: 器材情报 Equipment
2021-01-26
恭喜这座器材的新主人。SkyWatcher马克苏托夫牛顿MN190及EQ6R Pro赤道仪连立柱。马克苏托夫牛顿是所有折反射镜中最好用的一种布局，影像修正度比施密特牛顿更上一层楼，同时享受f/5.2的像场及f/8牛顿镜的修正度，这是施密特卡式望远镜的痛点。密封式镜筒避免镜面积尘，亦没有副镜支架造成的绕射问题降低影像对比度。香港一镜主说这镜比自己的高桥TOA150的成像更优秀。望远镜拍摄APS片幅时不用加修正镜，唯一代价就是比较重，需要EQ6 级别的赤道仪才可以。
Congratulate the new owner of this mighty setup, SkyWatcher Maksutov Newtonian MN190 on EQ6R Pro mount and pier tripod. Maksutov Newtonian is the most versatile catadioptric telescope. Image correction one level up above Schmidt Newtonian, performs like f/8 Newtonian while offering large field of view at f/5.2, which is the pain of Schmidt Cassegrains, closed tube design without problem of dust accumulation on mirrors and no secondary support hence no diffraction effect the lower the image contrast. One owner in Hong Kong said this scope performed better than his Takahashi TOA150. The scope need no corrector for deep sky imaging, good for APS format. The trade off is heavier tube hence requires EQ6 class mount.
写下留言: