親子觀星會

Origin-678C Camera
==
Celestron Origin  

https://www.cloudynights.com/topic/906336-celestron-smart-scope-the-origin/
(https://www.cloudynights.com/uploads/monthly_01_2024/post-241156-0-77537000-1704732431.jpg)
聽說 4000美金   Sony STARVIS IMX178   pixel size 2.4um

6” Rowe-Ackermann Schmidt Astrograph (RASA). Unlike traditional telescopes, RASA ingeniously places the imaging sensor at the front of the telescope tube. This design produces an ultra-fast f/2.2 system

https://www.youtube.com/watch?v=8m2NTyjV0yk 

有人說這6吋rasa 像場不夠 最多只m44片幅感測元件，用smart telescope 配小元件 fov就比較小

https://youtu.be/0_FgPFFJEWE?si=26UPN5fL4TFbo2Ap

Celestron Origin: Unboxing, Setup, First Light, and Seestar/Origin/C11 Showdown


OTHERS

Seestar vs Celestron
https://www.youtube.com/watch?v=r-wD6X5cU9E

MORE
6” Rowe-Ackermann Schmidt Astrograph (RASA)


https://www.cloudynights.com/topic/919292-i-am-considering-a-celestron-origin/

https://www.cloudynights.com/topic/934452-celestron-what-is-the-6-year-old-sony-imx178-sensor-doing-on-a-premium-4000-rasa-smart-telescope/

https://www.youtube.com/watch?v=A_XHd76JaNI

https://www.cloudynights.com/topic/906336-celestron-smart-scope-the-origin/page-11

(https://www.cloudynights.com/uploads/monthly_01_2024/post-301718-0-65349400-1705243344_thumb.jpeg)


https://www.cloudynights.com/topic/906336-celestron-smart-scope-the-origin/page-13
https://www.cloudynights.com/topic/906336-celestron-smart-scope-the-origin/page-14

(https://www.cloudynights.com/uploads/monthly_02_2024/post-294689-0-36516300-1706782562.jpeg)

有人摔機

Testing the Celestron Origin against Seestar and Vespera
https://www.youtube.com/watch?v=5ngPgPTs4FM

另一個摔砲

EQ  MODE

https://www.facebook.com/1359720197/videos/3442911735842258?idorvanity=407018585106488

https://www.cloudynights.com/topic/934933-is-an-asiair-based-telescope-a-smart-telescope/page-2

eq mode


https://www.facebook.com/photo/?fbid=10231808088277914&set=gm.1650573938919230&idorvanity=1362603081049652

Celestron Origin 智能天文望遠鏡作為一款集成式智能天文台，旨在為天文愛好者提供簡便的觀測和攝影體驗。然而，儘管它有許多優點，也存在一些被用戶提及的缺點：
1. 軟體和應用程式問題
 * 應用程式穩定性： 有用戶反映 Origin 的手機應用程式（特別是在 Android 裝置上）可能不夠穩定，有時會出現閃退或連接不穩定的情況，影響觀測或拍攝流程。
 * 實時疊加中斷： 當雲層進入視野或連接出現問題時，應用程式可能會提示「Five images not processed」，並丟棄之前疊加的圖像。這意味著如果長時間曝光（例如數小時）後遇到此問題，所有進度可能會丟失，除非用戶手動截圖或有其他備份方式。
 * 功能調整有限： 應用程式提供的手動調整選項相對較少，對於有經驗的用戶來說，可能會覺得缺乏自定義和精細控制的能力，例如對焦的微調步長、ISO、曝光時間等。
 * 保存格式： 有用戶提到，Origin 內部保存的 TIFF 檔案是未拉伸的（幾乎全黑），若要進一步處理，需要使用第三方軟體進行拉伸，對於追求極致效果的進階用戶來說，這會增加後製的複雜性。
2. 硬體和設計考量
 * 塑料部件： 儘管主鏡筒是金屬材質，但前後殼體和其他一些小部件採用塑料，可能讓用戶對其長期耐用性有所顧慮。例如，USB 端口的蓋子有用戶反映不太牢固，容易脫落。
 * 電池續航： 雖然官方宣稱電池續航可達 6 小時，但有用戶表示實際使用中可能達不到這個時間，或者充電狀態顯示可能不準確。
 * 噪音： Origin 的經緯儀馬達在導入（slewing）時噪音相對較大，在安靜的戶外環境中可能會比較明顯。不過，冷卻風扇的聲音則相對較小。
 * 非目視體驗： 與所有智能天文望遠鏡一樣，Origin 沒有傳統目鏡。所有的觀測和攝影體驗都透過螢幕顯示。對於喜歡透過目鏡直接觀看星空的傳統天文愛好者來說，這是一個明顯的缺點。
 * 行星和月球觀測/攝影限制： Origin 主要優化用於深空天體的拍攝。對於行星和月球的觀測和攝影，它需要切換到「快照模式」並手動調整設定，且對焦可能不如深空天體那樣自動和方便。一些用戶難以用它獲得清晰的行星圖像。
 * 體積和重量： 相對於 Seestar S50 等更便攜的智能望遠鏡，Origin 的體積和重量較大，雖然有提把方便搬運，但仍不如其他小型智能望遠鏡那麼「即拿即走」。
 * 中央遮擋： 作為一個快速的 RASA (Rowe-Ackermann Schmidt Astrograph) 設計，Origin 的中央遮擋較大（類似 RASA 11，約佔口徑的 41%）。雖然這有利於快速成像，但可能會對圖像的對比度產生輕微影響。
 * 熱像點 (Hot Pixels)： 由於相機是非製冷的，長時間曝光後可能會出現熱像點。儘管可以透過暗場校準來減輕，但對於追求極致圖像品質的用戶來說，仍需注意。
3. 價格與性價比
 * 高價格： Celestron Origin 的定價較高，使其成為市場上高端的智能天文望遠鏡。對於一些用戶來說，這個價格可能讓他們考慮是否能用更低的成本組建一套功能類似的獨立設備（例如傳統望遠鏡+赤道儀+天文相機）。
 * 升級空間有限： 作為一體機，Origin 的升級彈性相對較小。用戶無法像傳統望遠鏡那樣隨意更換不同焦距的鏡頭、不同型號的相機或導星設備等。
總結
Celestron Origin 在簡化深空攝影方面表現出色，但其軟體穩定性、部分硬體設計和對行星/月球觀測的限制，以及較高的價格，是潛在用戶在購買前需要考慮的主要缺點。對於追求極致圖像品質或喜歡傳統目視觀測的用戶，可能需要權衡這些因素。

有人說可換camera

Origin’s built-in Raspberry Pi 4 computer handles everything, from slewing (moving the telescope) and alignment to focusing and capturing images. You control it all through the Celestron Origin App, which connects wirelessly to the telescope. The app includes an easy-to-use planetarium view and suggests the best targets based on your location and the time. Just use any phone or tablet running iOS 16 or Android 12 or higher. 

Dual Cooling Fans for Performance Stability


    Optical Design: Rowe-Ackermann Schmidt Astrograph (RASA)
    Aperture: 152 mm (6") Focal Length: 335 mm
    Focal Ratio: f/2.2
    Optical Coatings: StarBright XLT
    Imaging Sensor: Sony IMX178LQJ color CMOS, Back-illuminated
    Pixel Size: 2.4 µm x 2.4 µm
    Sensor Size: 8.92 mm diagonal
    Resolution: 3096 x 2080 (6.44 MP)
    Field of View: 1.27° x 0.85°
    Filter Drawer: Integrated, Supports 1.25" and 2" filters
    Onboard Computer: Raspberry Pi 4 Model B
    Mount Type: Computerized GoTo Alt-Azimuth
    Autofocus: Electronic (manual override via app)
    Dew Prevention: Integrated Heater with Sensor + Dew Shield
    Cooling Fans: 2 (optics and electronics)
    Battery: 97.9 Wh LiFePO4 (6+ Hrs Runtime)
    Power Input: 12V DC Adapter (included)
    Connectivity: Wi-Fi, USB-A (x3), Ethernet, Aux ports (x6)
    App Requirements: iOS 16+ or Android 12+
    Weight (Total System): 41.6 lb (18.9kg)
    Dimensions (Assembled): 24" L x 26" W x 48" H (61 cm x 66 cm x 122 cm)

摔到了

Origin Mark II Announced today

https://www.facebook.com/photo.php?fbid=25590538213881755&set=p.25590538213881755&type=3

Origin-678C Camera  

U$499

https://www.youtube.com/watch?app=desktop&v=xLFcTAQxEzw&fbclid=IwY2xjawNdJRJleHRuA2FlbQIxMQBicmlkETFLUWhKRDJNaEdrZUhnYmxHAR6PiXhXxr3oSNIeCeO52wxOCTUg8YTyU3wm3AuRbqJGTRkIxYOl4RJHzfBbIQ_aem_a1wGEOyFgaH39isDkg3GRw


Sony STARVIS IMX178 color CMOS sensor 可換  678C Sony Starvis 2 CMOS



IMX678 和IMX178 都是Sony 製造的CMOS 影像感測器，但存在差異：IMX678 是一款較新的8.4MP 感測器，特別強調低功耗和高靈敏度 , IMX678 no amp glow , 至於 IMX178  amp glow 可透過 dark補救.

IMX178:  old sensor , size 1/1.8"   6.4MP   pixel size 2.4um
IMX678:  new sensor , sensor 1/1.8"   8.4MP (4K)   pixel size 2um  


https://www.mobile01.com/topicdetail.php?f=621&t=6711263

目前常用的 IMX415 感光能力基本上在 Starvis2 家族前只能說是 長江後浪推前浪
Starvis2 監視器產品線目前有
1/1.2" IMX585 這顆太大顆 行車紀錄器應該沒機會用 鏡頭成本都太高了
1/1.8" IMX678 Viofo A139 Pro 已經推出產品
1/2.8" IMX675 4M 的有機會取代目前大量使用的 IMX335 感光能力翻好幾倍
1/2.8" IMX662 2M 日本廠商 Comtec行車紀錄器ZDR045採用 適合星光夜視場合


總結目前市面上商品化的 4K感光元件如下：
1.IMX415 使用量最大 (小米 70Mai A800等)
2.OV OS08A10 (Mio 887等)
3.IMX334 (Thinkware U1000)
4.IMX678 Starvis2 (Viofo A139 Pro)
5.IMX317 (Viofo A129 Pro 4K)

性能排名：
IMX678 >>>> OS08A10 >> IMX334 >> IMX415 > IMX317(DC向)

https://www.facebook.com/photo/?fbid=25582000471388099&set=pcb.1791983554778267
https://www.facebook.com/photo?fbid=25582000444721435&set=pcb.1791983554778267
(https://scontent.ftpe7-1.fna.fbcdn.net/v/t39.30808-6/561350549_25582006021387544_7827963406495860222_n.jpg?stp=cp6_dst-jpg_tt6&_nc_cat=100&ccb=1-7&_nc_sid=aa7b47&_nc_ohc=KW-fdjvJ3Q4Q7kNvwFExsL-&_nc_oc=AdlB1aa3DnfwmnxDF97M2KhDbA5lgI3IPWiAzn_iSY-1q_lL6GSpt6HyM8LAD3a-5kM&_nc_zt=23&_nc_ht=scontent.ftpe7-1.fna&_nc_gid=7t1WYlv6q8l8KOgxK597aQ&oh=00_Afe0yzgNWI-3bzo133oIw8poR0c77waUMKc1vPKeObEMpw&oe=68F665B2)

在 Reddit 等用戶討論中，有人問「能否將 DSLR（如 Nikon Z9）接在 Origin」時，有回覆指出：

“I have a celestron origin, but looking to run … Nikon Z9 … Is this possible?”
回覆：「Not the origin. I wish I could run the Z9 on the origin but the camera attaches to the top of the telescope and the z9 is a bit bulky.”
Reddit

這也反映了非官方、自由更換感測元件時會有尺寸／安裝／整合性困難。

官方也在 FAQ 中寫道：「Can I use the Origin optical tube on another Celestron mount? No, the Origin optical tube only works with the Origin mount at this time.」
celestron.com
 同理，感測器／相機模塊的更換也可能受到「只為該系統設計」的限制。


可以升級／更換為官方支援的相機模組版本：例如官方推出的「678C Camera 升級套件」。這樣做風險較低、支援較好。

不建議或難以支持隨意更換感測器為第三方／非原廠規格的大型相機（如 DSLR、專業冷卻厂 CMOS），原因包括：

安裝結構（機械接口）可能不適配。

焦平面、感測器尺寸可能與原設計不匹配，影響影像質量或造成致命誤差。

韌體／軟體流程可能不支援你所換的感測器。

校正流程（flat frames、偏置、暗場）需重新做且可能引入更多難度。

若你願意自己動手、進行改裝（custom mod），技術上或許可行，但你必須接受：保固可能失效、支援難、改裝難度／成本高、可能得自己處理驅動／冷卻／對焦等問題。

If I bought the Celestron Rasa 6 is it possible to turn it into an Origin Clone or close to it?
 

https://www.cloudynights.com/forums/topic/983709-could-a-celestron-rasa-6%E2%80%9D-be-cloned-to-an-origin/

有人問題的

Problem solved! Some may remember my post on excessive play in the altitude axis - approx. 0.3 degrees or 1000arcsec in my case, but this seems to vary a lot between units and may not be present at all in your mount. But if present this can lead to substantial drift of the field of view during long acquisitions and potentially severe problems when the Origin is used with an autoguider.

Standard measure to reduce these problems is to imbalance the optical tube somewhat to always keep it in a defined position on one side of the slack, i.e. to pre-charge the gear with some torque. But the imbalance leads to torque that varies with altitude angle and completely fails to charge the gear at high altitudes. To be efficient at higher altitude a lot of imbalance is required which can lead to other problems with guiding and with the mount. Also, the varying torque lets the tube sit at slightly different positions within the play and does not completely eliminate the problem.

What we need is a constant torque, constantly charging the gear in the same way. Therefore, in high precision mechanics it is standard to charge gears with springs, because some play is always present. I do not know why this is not done in the Celestron mounts, or why, perhaps, these springs are missing in some units.

But there is a simple solution. I have now provided constant charge to the gear by attaching a weight to a thin rope that is winded around the axis, see pictures. That way the torque is constant, no matter where the tube is pointing.

A weight of 750 grams seems to be  optimal. It is sufficient to always have the tube in a defined position and small enough to not result in excessive wear of the gear or any other problem with the mount. In a horizontal position the torque produced by it corresponds to the torque that comes from taking the lens cap off, if the tube has been balanced with the cap on, so its actually very little. But it is constant and completely eliminates the problem for me!