香港天文論壇

Taken with Vixen Baby VSD + reducer + 100Da @240mm F4.35 12x300s, autoguided with Vixen AP non-goto mount + 4cm guiding scope + QHY5LII-M guide cam + PHD2 For larger size, strongly recommended to click on the link below to take a look. www.william-lt-5.com/Trip-Aus_2019.htm Thanks for your looking. ...

Thanks for your appreciation.

人家有$養鴨鴨，我缺$就只可養水牛！ Vixen有只8" F4 (R200SS) 和牛，質素很高，但帶去旅攝，有點困難。故改養一只6" F4 水牛，瘦身一輪後，可跟Vixen AP 赤道儀，出走HK。 原本600mm焦距的他，影星團介子等，有感仍力有不足，幸Vixen最近推出了一只 1.4x extender PH，心內大喜。 4月復活節之旅，Vixen Baby VSD (FL55SS)已擔主角，6" F4水牛未能同行，只好等待11月寶島之旅。 數日前，見夜空有雲隙，不理三七廿一，也在YL走家，試試 6"F4 水牛 + 1.4x extender PH + AP mount 組合的效果。 光...

單張曝光180s @iso1600 (Processed in PS without any dark, bias and flat calibrated)

Taken with Vixen Baby Q (FL55SS) + SD reducer + modified M6 @245mm F4.5 in Rockhampton
Autoguiding: Vixen AP mount + 4cm guiding scope + QHY5LII-MM

昨晚天氣其實是頗差的，天空7成區域有雲，但因快南下，所以也要進行測試 Vixen AP mount 行 goto 功熊 + automated image capture with SGPro。 原本想測試不做任何 star alignment，用 "秘技二" 促成 AP mount 直接 go to 去 M67 + platesolve 開始所編定的 automated image capture sequence。可是北極星天區一直被雲遮擋，北極星不能看見，不能用極軸望遠鏡準確對極。沒辦法，唯有用 "秘技三" 用小犬座主星 Procyron 來對極，需不能很準確，但估計對極誤差是小於1度。...

影M51的季節又到了，希望可以用新的攝影流程方法和新系統試試拍攝效果

單張曝光 240s @iso800 @PTC
Taken with Vixen VC200L + reducer + unmodified 6D @1280mm F6.4
Autoguided with Vixen SX2 mount + 5cm guiding scope + Lodestar X2 + PHD

Vixen AP mount 本身不是goto類型赤道儀，但網上有人分享用 Star Book Ten controller 控制 AP mount 行 goto 功能。於是 DIY了一條 AP 接 Star Book Ten 的連接線，也嘗試能否成功今 AP mount 執行 goto 功能，並初步成功。跟著想試能否用SGPro控制AP mount執行深空天體全自動攝影。 昨晚黃昏睛，於是便趕回家晚飯，飯後便立即趕回YL進行測試。儀器組裝完後發覺欠帶Ethernet adapter + Lan cable，結果不能測試用SGPro控制AP mount執行深空天體全自動攝影，只有用最基本的go...

即將登 6，一切在倒數中。所以將過往的攝影經歷，逐步記錄在我的個人網頁中 (www.william-lt-5.com)，仍未完成，只剛剛開始，若有興趣，請多多瀏覽。

1. 第一次使用DSLR
www.william-lt-5.com/1st-time_DSLR.htm

2. M42 project
www.william-lt-5.com/M42-project.htm

建議到以上連結看分享及大圖。

One RAW has been uploaded on my homepage for your reference, and welcome to take a look if interested.

Eddy So 寫: ↑

週一 25 2月, 2019 20:09

Thanks.

anyone 寫: ↑

週一 25 2月, 2019 18:03

Thanks.

上個月，有幾晚的大氣透明度不差，但病了，不能到PTC攝星，只可在YL老家測試老mount SXD的操作和自動導星表現。因只作測試，ED81SII折射鏡子沒裝上任何像場修正器 SD reducer HD kit；構圖亦很隨意。 亦因只作測試，曝光時間也不刻意特別長，總曝光時間也不到1小時。但意想不到，YL老家光害那麼嚴重下，雖然很勉強，都能拍到M42主體外圍的暗淡星雲！！！ Taken with Vixen ED81SII apo refractor + 100Da + SXD mount, and Highly recommended going to the link below for a...

Try again on playing HDR in PS. Taken with Vixen AX103S + 0.7x reducer + 100Da @578mm F5.6 in 2003 @PTC Total exposure = 9x480s + 9x60s @iso 800 Autoguided with Vixen SX2 mount Firstly processed in PI with DBE, PCC tools and then final touch in PS for HDR composition and adjustment with Level, Curve...

M42, an object I take every year in Hong Kong and have been imaging for more than 10 years. So, recently I started an attempt to combine all the images taken with different scopes and DSLRs, which I call it as M42 project, to see what the result will come out. That is the first attempt of combining ...