• Sky-Watcher 天文望遠鏡 Dobsonians 系列 BK DOB12" SynScan

BK MAK DOB

12" SynScan


牛頓反射式系統 / 杜甫生望遠鏡
The Sky-Watcher Dobsonian SynScan series is precision engineered instrument that will allow you to easily find and enjoy viewing night sky treasures, such as Planets, Nebulae, Star Clusters, Galaxies and much more. With its patented collapsible tube design, these Dobsonians are truly the ultimate in portability and performance. Ultimately, Dob SynScan combines the convenience and affordability of the traditional Dobsonian with the convenience of a computerized Go-To telescope.
The elegant truss tube design was carefully engineered to combine ease of use, extreme portability and consistent performance in an affordable package. Unlike other truss tube designs, the SkyWatcher Collapsible Dobsonian does not need to be disassembled between uses. It transports as two compact pieces that can be assembled and ready to use in just seconds! It is easy to collimate once set up, and it holds its collimation throughout the evening! The patented Tension Control Handle allows users to add or reduce tension, thereby increasing or decreasing the friction between the optical tube and the sideboards.

The SynScan AZ hand control allows you to point your telescope at a specific object, or even tour the night sky at the touch of a button!! The user-friendly menu system allows automatic slewing to over 42,900+ objects. Even an inexperienced astronomer can master its variety of features in a few observing sessions. The patented Freedom Find (dual-encoder) technology allows the telescope to be moved manually whenever the user wishes - but with no need for re-alignment!

Freedom Find™
- tracking made easy!
With the patented Freedom Find (dual-encoder) technology which allows the telescope to be moved manually or electronically in either axis without losing its alignment or positional information. After moving to a new object the telescope will automatically begin to track the new object accurately. No re-setup is required in one observing session.

Specs
  • Power Supply: 10 to 15 V DC 1Amp, 2.1mm Plug (Center positive)
  • Motor type: DC Servo Motors
  • Resolution: Motor encoder: 1,620,000 counts per revolution, Main axis encoder: 11,748 counts per revolution
  • Slew speeds: 1.0X, 2.0X, 8X, 16X, 32X, 200X, 400X, 600X, 800X, 1000X
  • Tracking Rates: Sidereal, Lunar, Solar
  • Tracking Mode: Dual Axes Tracking
  • Alignment Method: Brightest-Star Alignment, Two-Star Alignment
  • Database: 25 user defined objects. Complete M, NGC and IC catalog, partial SAO catalogs, total 42,900 objects
  • Go-To Pointing Accuracy: Up to 5 arc min

  • Photos of Retracted truss tube and SynScan Remote Controller "Sky-Watcher’s GoTo Dobsonian

    High-tech meets bargain-telescope design. A shotgun marriage or a match made in heaven? We find out!"

    "Could the new Sky-Watcher SynScan telescopes really work?
    ...my doubts were allayed the first night out.Our test telescope,on loan from Pacific Telescope Corp., worked great. Surprisingly so."
    Review of the Sky-Watcher GoTo Dobsonian by Alan Dyer on SkyNews.
    ( www.skynews.ca | Review)

    Specifications
    Optical Design Newtonian (Parabolic)
    Optical Diameter 305mm
    Focal Length 1500mm
    F/Ratio F/4.9
    Secondary Mirror Diameter 70mm
    Highest Practical Power 610x
    Faintest Steller Magnitude 14.3
    Finder Scope 8x50*
    Focuser Diameter 2" crayford
    Eyepieces 1.25" SP10 & SP26*
    Tube Weight 21kg
    Tube Dimensions 450mm x (920-1400)mm
    Shipping Weight 33 + 23kg
    Shipping Dimensions 71x83x31cm3;
    106x54x55 cm3

    望遠鏡使用須知:

    當你使用望遠鏡時,有許多事前準備工作與觀測指南,對初次觀測者而言,最好是在白天以地球上之景物為觀測練習,將尋星鏡及目鏡的景物精確的調整一致,這樣在夜間觀星時才能精準的對準欲觀測的目標物. 也可獲得望遠鏡操作之最基本經驗。

    關於倍率(倍率=望遠鏡主鏡焦距/目鏡焦距)也就是我們想盡量放大月球,行星和深空星體以便我們能更大更靠近地看到它們,若您能觀測到火星上的星河,木星的冰帽或航天員著陸月球時的景像,這不是一種令人感動的經驗嗎?!浩瀚的宇宙中有太多的景物等待我們去發掘, 說不定哪天您會用Sky Watcher望遠鏡看到UFO及外星人的畫面呢 !

    透過光學鏡片光的傳遞,折射及倍率的簡單物理學,使一切更富有挑戰性,因為要增加倍率使得更多的光線損失,為了達到更大倍率,在大氣中有更多來自包圍光源與不定的光源干擾觀測,這也就是為什麼很多使用天文望遠鏡有經驗者都知道,以低倍率通常更能達到享受觀測的樂趣,建議初次觀測者能先以低倍率開始用你的望遠鏡,在你以低倍率觀測獲得練習技巧後,當你由低倍率改為高倍率觀測時,會使你的FOV視野縮小,請記住目鏡上的數字愈大(25mm,20mm,4mm),所形成的倍率愈低。觀測中切勿觸摸或震動望遠鏡,否則會造成影像閃動或移動,當然也請先確定所有的螺絲都已鎖緊。

    當你用不同目鏡觀測時,你必需注意眼睛的位置是非常重要的。如果你的眼睛太靠近目鏡,你會碰觸到目鏡且產生陰影;如果眼睛離目鏡太遠,你所看到的視野會變小,多加練習及體驗,你將很快地運用自如。若觀測的影像模糊不清時,請旋轉調焦扭讓景物調整到最清楚為止。

    您的眼睛所發出的熱氣會使目鏡表面鏡片模糊,只要暫時將眼睛離開目鏡幾秒鐘即可,請盡量避免溫度突然的變化太大,又請將望遠鏡放置於涼爽乾燥的地方。如果您的望遠鏡無法正確地對焦或使用上有任何問題,可以打電話給本公司服務中心,我們將會給您最完善的服務。

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    Sky-Watcher 天文望遠鏡 Dobsonians 系列 BK DOB12" SynScan

    • 品牌: Sky-Watcher
    • 型號: BK DOB12" SynScan
    • 庫存狀態: 有庫存
    • $79,000

    • 稅前: $79,000

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