星特朗CPC925
星特朗CPC925Over the past twenty years, I have either owned or used an assortment of reflector, Maksutov, refractor and Schmidt-Cassegrain telescopes. I currently own a 5" Mak and a 9.25 CPC Schmidt-Cassegrain. This review is for the Celestron 9.25 CPC scope, which is the scope I use most of the time.
在过去的20年里，我拥有过或者曾经使用过各种望远镜：诸如牛顿镜、马卡、折射镜以及施卡。我现在有一支5寸的马卡和星特朗的9.25 CPC施卡。这篇文章就是关于这支星特朗9.25CPC，这支我在大多数时间中使用的镜子。
During the past two years, I have been volunteering at Bryce National Park and have assisted with several evening star-gazing programs. There have been times when we have had in excess of 200 visitors eager to look through the telescopes. Although the park uses an assortment of reflectors, refractors, and compound telescopes, it is the Schmidt-Cassegrains that are the workhorses for the astronomy program. Telescopes for group star-gazing need to be durable, good for viewing all types of objects and preferably equiped with Go-To capability. The Celestron CPC telescopes certainly fit the bill.
在过去的两年中，我在布莱斯国家公园做过志愿者并且参加了一些观星集会活动。有段时间有超过200位热切希望通过望远镜看到太空的来访者。虽然在集会上使用各种各样的牛反、折射和复合望远镜，但是施卡是在观测中使用最多的。被用于群体性观星的望远镜需要有耐久性、对每种目标都适宜并且最好是具有Go—To功能。星特朗的CPC系列望远镜就恰好符合标准。
I purchased my 9.25" CPC after doing extensive research. This particular scope seems to have a dedicated following, as the mirror is configured differently from other Schmidt-Cassegrain scopes. Astro-photographers seem to prefer the 9.25 format, claiming that it gives a flatter field of view. However, I cannot substantiate these claims, since I use my scope exclusively for visual work. The reason I purchased this scope is because I wanted an all-purpose excellent performer.
我在做过大量研究后才买下我的9.25 CPC。这支特别的望远镜似乎有一个不同的地方，它的镜子与其他的施卡不一样。天文摄影爱好者似乎更加喜欢9.25的设计，据称它可以提供更平坦的视野。但是，我并不能证实这种说法，因为我一直用我的望远镜来目视。我之所以买这支望远镜，是因为我想要一直在所有目标上都有优秀表现的望远镜。
So how does this scope stack up as an all-purpose telescope? First of all, it is an excellent scope to use for star-gazing with large groups. The scope is big and heavy, but it can be set up and aligned in 10-15 minutes. Once the scope is properly aligned, it can track objects for at least a couple of hours. The better the alignment and accuracy of leveling the tripod, the better the tracking will be. I have found that this scope, coupled with a low or medium power wide-field eyepiece, is perfect for group star-gazing. This is an F10 scope, so an expensive eyepiece isn't necessary to provide nice views.
那么这支望远镜为什么是一只全能镜呢？首先，它非常适合给集体观测使用。这支望远镜虽然大并且沉重，但是它能够在10—15分钟内架设并对校准。一旦一架望远镜校准后，它就能跟踪目标至少几个小时。校准和脚架水平做得越好，跟踪就会越好。我发现这架望远镜配合一些低倍以及中倍广角目镜使用时，是集体观星最好的选择。这是一支f10的望远镜，所以用一只昂贵的目镜来获得优质的观测是不必要的。
Aligning the telescope is really very easy. However, it is necessary to level the tripod. There is a built-in bubble on the tripod, so this is relatively easy to achieve. There are several choices for aligning, and I usually use the two-star auto alignment. First, I align one star and then enter the name of a second star. The scope slews to the second star, and then I center the second star in the eyepiece. That's all! The GoTo is a snap and works great! My CPC has a GPS system, which makes the process even easier.
这支望远镜的对准是非常简单的。但是，使脚架水平是非常有必要的。在脚架上有水平泡，它使得水平工作相对来说简单点。这里有很多种方式来校准，我经常使用得是两星自动校准。首先，我对准一颗星，然后输入下一科星的名字。望远镜转向下一颗星，然后我将这颗星放在目镜的中央。校准就完成了。Go—To系统运行的很好。我的CPC有一个GPS系统，它使得整个工序更加简单。
Of course, the most important consideration of any telescope is the performance of its optics. Fortunately, I have had the opportunity to compare the 9.25 with Schmidt-Cassegrain scopes of different apertures. In my opinion, the 9.25 seems just a little sharper than other Schmidt-Cassegrain telescopes. The 9.25 is an excellent performer on a variety of deep-sky objects, especially open and globular clusters, nebulae and double-stars. I've also gotten very good views of the planets through this scope.
当然，每个望远镜首先要考虑的是其光学表现。幸运的是，我已经有能力去比较9.25和其他口径的施卡。在我看来，9.25似乎只是比其他的施卡更加锐利一点。9.25是一支在深空目标方面表现很好的镜子，特别是对于疏散新团和球状星团，星云和双星。在行星方面，这支望远镜也有上佳表现。
This telescope is an excellent all-around performer, and I highly recommend it for visual astronomy. However, the 9.25CPC is not equiped for time-exposure photography. It is necessary to purchase a special wedge for the tripod in order to do astro-photography. If your main interest is astro-photography, you might consider the Celestron 9.25 on a German equatorial mount.
这支镜子是一支全能镜子，我高度推荐作为目视天文用。但是，9.25 CPC并不能用于长时间曝光拍照。要进行天文摄影的话，就要去买一个适合脚架的楔子。如果你主要的兴趣是天文摄影，你可能就需要考虑那种带德式赤道仪的星特朗9.25。
原文地址：http://www.cloudynights.com/item.php?item_id=2294
才开始翻译天文知识，有很多地方有错误，欢迎大家指正。 支持，加油，鼓励 好像 奥巴马、、、也用过这个 回复 3# 460724213
淘宝上很多人都用了奥巴马的那张照片。 CPC 双叉臂经纬仪感觉不如MEADE LX200 ACF叉式赤道仪系列，
后者支持自动导星摄影 ACF光学也好些。 回复 5# alexhy
这两者都支持摄影，不过都需要加一个Wedge如图： 不过美德的ACF确实强一些。 楼主说的没错 问题是Celestron 因为技术是涉嫌抄袭的原因 还和MEADE 打官司，
个人觉得MEADE的双叉臂做的好些。 回复 7# alexhy
首先声明，我不是星特朗的粉丝。哈哈！
我从你的回复中才得知，星特朗居然还在和美德打官司，长见识了。
叉式赤道仪确实美德算是一家独大，做得相当好。不过叉式赤道仪我觉得通用性差了点，小设备还是德式赤道仪好些。
还有就是建议美德加强中国大陆的销售渠道，或者直接让晶华做美德的国内销售算了。 回复 4# cqzhw123
那是当然。。多好的宣传语啊。。奥巴马都用的望远镜，牛逼！
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