亚马逊的其他卖家
Celestron 星特朗 C 望远镜 Celestron f/6.3 减速器校正器
Celestron 94175 Field Lens Corrector/Focal Reducer, Black
页面含机器翻译,中文仅供参考,以原文为准
Celestron 94175 Field Lens Corrector/Focal Reducer, Black
|
人气 |
海外自营
广告
¥870.27¥870.27

12期7.5%费率,每月仅 ¥77.98 最高12期,多种分期方式可选 了解更多
灵活选择分期付款:结算时,选择花呗分期和您需要的分期数。此处仅为按商品金额(未包括税费)估算的示例,实际金额以结算金额为准。
![]() | 3至12期分期付款 由花呗分期提供 |
分期计划 | 手续费 | 总金额 |
---|---|---|
¥296.77×3期 | ¥20.02 (2.3%) | ¥890.29 |
¥151.58×6期 | ¥39.16 (4.5%) | ¥909.43 |
¥77.98×12期 | ¥65.27 (7.5%) | ¥935.54 |
提升您的购买力
- 这款焦距减距器和场地矫正器镜头配件适用于所有 Celestron 5 英寸、6 英寸、8 英寸、9 1/4 英寸、11 英寸和 14 英寸 Schmidt-Cassegrain 望远镜
- 这款巧妙的配件使您可以拥有双焦比仪器,而不会牺牲图像质量
- 减速器/修正器是 f/6.3 适用于 C5、C6、C8、C9¼ 和 C11 望远镜,f/7 适用于 C14 望远镜
- This combination focal reducer and field corrector lens accessory works with all Celestron 5", 6", 8", 9 1/4", 11" and 14" Schmidt-Cassegrain telescopes
- This clever accessory makes it possible to have a dual focal ratio instrument, without sacrificing image quality
- The Reducer/Corrector is f/6.3 for C5, C6, C8, C9¼ and C11 telescopes and f/7 for the C14 telescope
亚马逊海外购
亚马逊海外购-DeLonghi
De'Longhi,德龙,意大利主要的小家电生厂商之一,始创于1902年的意大利的特雷维索,从一间手工作坊开始, 20 世纪 50 年代,德龙集团正式成立,主要为其他的公司供应取暖系统的零部件。 20 世纪 70 年代公司公司开始推出自己品牌的产品。现已成为中高档生活电器的设计、研发、生产和销售的跨国集团。其产品涉及多个领域:咖啡机系列、厨房电器系列、加热电器系列、空调/空气净化系列、清洁/熨烫系列,业务遍及全球80多个国家。 >>查看DeLonghi >>查看海外购厨具店
基本信息
- 制造商是否已停产 : 不是
- 商品尺寸 : 5.08 x 5.08 x 5.08 cm; 109 克
- 制造商 : Celestron
- ASIN : B00009XVHZ
- 型号 / 款式 : 94175
- 亚马逊热销商品排名: 商品里排第40,273名运动户外休闲 (查看运动户外休闲商品销售排行榜)
- 商品里排第35名天文望远镜
- 用户评分:
商品描述
这款组合焦距减速器和场地矫正器镜头配件适用于所有 Celestron 5 英寸、6 英寸、8 英寸、9 1/4 英寸、11 英寸和 14 英寸 Schmidt-Cassegrain 望远镜。 这款巧妙的配件使您可以拥有双焦比仪器,而不影响图像质量。 减速器/校正器为 f/6.3,适用于 C5、C6、C8、C9¼ 和 C11 望远镜,f/7 适用于 C14 望远镜。 如果使用任何 Schmidt-Cassegrain 望远镜提供宽视野。 用于天文摄影,可减少 3 个因素的曝光时间。 Celestron 不提供 f/6.3 Schmidt-Cassegrain 望远镜,因为设计不实用,中央障碍大,形成对比度损失。 这增加了无法为某些物体使用更长的焦距,导致 Celestron 设计四元素、全镀膜 f/6.3 减速器/矫正器。 视觉和摄影效果都令人惊叹。 #94175 减速器/校正镜头与 Celestron EdgeHD 光学系统不兼容。
无买家评论
5 星 (0%) |
|
0% |
4 星 (0%) |
|
0% |
3 星 (0%) |
|
0% |
2 星 (0%) |
|
0% |
1 星 (0%) |
|
0% |
评分是如何计算的?
在计算总星级评分以及按星级确定的百分比时,我们不使用简单的平均值。相反,我们的系统会考虑评论的最新程度以及评论者是否在亚马逊上购买了该商品。系统还会分析评论,验证评论的可信度。
此商品在美国亚马逊上最有用的商品评论
美国亚马逊:
4.3 颗星,最多 5 颗星
127 条评论

Mike
5.0 颗星,最多 5 颗星
Works flawless
2023年1月10日 -
已在美国亚马逊上发表样式: 修正液已确认购买
I should have bought this from day one. Awesome results


Mike
评论于 2023年1月10日 在美国 🇺🇸 发布
该评价的图片


Howard W. Hudson
5.0 颗星,最多 5 颗星
Great to see the whole object like the Moon or the Sun and not just a piece of it.
2022年5月18日 -
已在美国亚马逊上发表样式: 修正液已确认购买
I purchased this focal reducer a couple of months ago but had not had the chance to use it until this past Sunday May 15th 2022 when I went to the University of Arizona and setup my scope with others who were there. I was using my Celestron Nexstar 8se and Star Sense to get it aligned with and a 40mm eye piece. I had noticed others were using their phones to get pictures and getting some decent ones at that so I thought I would give it a try and the pics aren't bad even if I do say so myself. I can see I'm going to be using this reducer a lot especially with the 8Se. My next step is to try and get images of the Sun as soon as I am able to.


Howard W. Hudson
评论于 2022年5月18日 在美国 🇺🇸 发布
该评价的图片


1 个人发现此评论有用

Railbird
4.0 颗星,最多 5 颗星
Solid Construction, As Advertised Optical Performance.
2017年4月30日 -
已在美国亚马逊上发表样式: 修正液已确认购买
My main motivation for buying this was to fit the sun (and moon) into the field of view of my APS-C (24 x 16 mm) camera sensor using my Celestron 8" SCT (2000 mm FL). Using a full frame sensor is not an option since the C8 will vignette. This device also allows a slightly wider field of view and lower f-number for deep space object astrophotography.
Handy reference numbers for those wishing to photograph the Eclipse or just the entire moon: Max focal length when using an APS-C camera is about 1260 mm. When using a full frame, about 1900. But only if you can center the target and keep it centered. (To photograph the moment of eclipse use 400mm APS-C/600mm Full Frame and no solar filter.)
This device is not useful for solar system astronomy, except the sun or moon, or when using eyepiece projection photography. But you can always just take it off.
One huge advantage of this device is that you get just about the same performance as you would with an Edge HD telescope, and the field flattener costs half as much. If you buy an Edge HD 8" OTA you get a built-in field flattener, but still have the longer focal length, and hence smaller field of view and slower f-number. To see the whole sun or moon, or a more of the Pleiades in a camera, you would have to buy another focal length reducer, about $300 bucks. Since the Edge HD comes at a $400 buck premium over the SCT you spend an additional $700 bucks to get to the same optical setup you get with the the SCT plus this item at about $150 bucks. Go with this plus the SCT and save $550 bucks, and you will even have less glass between you and the stars to boot.
The construction is very solid, you should have no problem hanging a DSLR (or better a mirrorless camera) off of this thing.
Handy reference numbers for those wishing to photograph the Eclipse or just the entire moon: Max focal length when using an APS-C camera is about 1260 mm. When using a full frame, about 1900. But only if you can center the target and keep it centered. (To photograph the moment of eclipse use 400mm APS-C/600mm Full Frame and no solar filter.)
This device is not useful for solar system astronomy, except the sun or moon, or when using eyepiece projection photography. But you can always just take it off.
One huge advantage of this device is that you get just about the same performance as you would with an Edge HD telescope, and the field flattener costs half as much. If you buy an Edge HD 8" OTA you get a built-in field flattener, but still have the longer focal length, and hence smaller field of view and slower f-number. To see the whole sun or moon, or a more of the Pleiades in a camera, you would have to buy another focal length reducer, about $300 bucks. Since the Edge HD comes at a $400 buck premium over the SCT you spend an additional $700 bucks to get to the same optical setup you get with the the SCT plus this item at about $150 bucks. Go with this plus the SCT and save $550 bucks, and you will even have less glass between you and the stars to boot.
The construction is very solid, you should have no problem hanging a DSLR (or better a mirrorless camera) off of this thing.
24 个人发现此评论有用

Jahan Dawlaty
5.0 颗星,最多 5 颗星
Worked well, easy to install
2021年7月30日 -
已在美国亚马逊上发表样式: 修正液已确认购买
I put this on my celestron 8se SC telescope with the goal of increasing the field of view (because I have a zwo asi224mc camera with a relatively small sensor area). It was easy to install and worked quite well. Before buying it, I was worried that the focal plane would shift so much that I would not be able to focus within the limits of my focusing knob. But that worry was unfounded and I got to focus easily. I could fit the Dumbbell nebula with enough contextual background in the field of view of my camera. As far as I could tell, I did not observe significant vignetting. My plan is to leave it in the back of the telescope forever and only take it off when doing planetary observation or imaging (which requires higher magnification).
3 个人发现此评论有用

Night Sky Fan
5.0 颗星,最多 5 颗星
Visual or Video -A Great Accessory
2011年10月24日 -
已在美国亚马逊上发表样式: 修正液已确认购买
I am sorry that I did not buy this accessory two years ago. It all began with a used Celestron C5. Then I bought a very nice used Nexstar 8SE and thought wow, I should have done this go-to thing sooner. After a year or so, I moved up to a new Celestron CPC925 and decided to explore video astronomy with an inexpensive Samsung SBC-2000 security cam. Most SCTs have a focal ratio of about f/10 (focal length divided by aperture) but a camera works better with a faster (shorter focal length) scope. The usual way to do that with a video camera is to screw on a small .5x reducer. So I bought on of those for $35 and was just amazed at the detail and colors in the Dumbbell Nebula. Then someone over at Cloudynights.com suggested that try adding a f/6.3 reducer (stacking reducers). So I bought the f/6.3, screwed in on the back of the CPC925, replaced the visual back and diagonal, mounted the camera (without the .5x) and stayed up until 2AM looking at the Orion Nebula. Before heading for bed, I pulled the camera, put in a 20MM 68 degree APOV eyepiece, and had another "Wow!" moment.
The Celestron f/6.3 reducer-corrector really brightens the image, widens the field of view, improves contrast and detail, and flattens the image improving the look of stars near the edge of the field of view. Many people leave them on all of the time except when looking at the moon and planets or other high magnification situation.
There are other and cheaper reducers on the market and they do work. However not all of them offer the same degree of improvement at the edge of the field of view. Rod Mollise writes "...6.3 r/cs are one of the best--if not the best--SCT accessories to ever come down the pike" and "I'll put it this way...the 6.3 rarely comes off the rear cell of the C8."
The Celestron f/6.3 reducer-corrector really brightens the image, widens the field of view, improves contrast and detail, and flattens the image improving the look of stars near the edge of the field of view. Many people leave them on all of the time except when looking at the moon and planets or other high magnification situation.
There are other and cheaper reducers on the market and they do work. However not all of them offer the same degree of improvement at the edge of the field of view. Rod Mollise writes "...6.3 r/cs are one of the best--if not the best--SCT accessories to ever come down the pike" and "I'll put it this way...the 6.3 rarely comes off the rear cell of the C8."
64 个人发现此评论有用