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Fri Jun 15 00:22:35 HKT 2018
From /weblog/photographic
星軌拍攝技巧 數問 - 1).數碼機因hot pixel而唔適合曝得耐...最好分開影影夠幾個鐘...咁每張間隔之間都要俾CMOS斗下氣？ 有師兄 教過 分十幾張 每張 10-20min 再合成 好過 一野 暴 幾粒鐘, (菲林 令計) 2).數碼機有D人話用ISO 100、有人話用ISO 400-800好...如果用合成方法...其實係咪都係就番光害而定...定係關雜訊事？ 睇天氣 , 小弟 用 o個次 用 iso 100 5).北極星仰角澳門係23度，咁香港一樣？？ 4季 都唔同 位置, 用星座 搵 會準確 d, e+ 係 冬季, 北極星 位置 係 獵戶座 (lei 個最易 認, 唔會 搵唔倒 ... ) 頭頂 (腰帶 致 頭頂 距離 再過 5倍左右) 附圖 係 舊年 去雲南 香格里拉 時影, 本泥想 長暴, 不過 o個晚 太涷 個人 頂唔順 要收皮 反酒店 http://www.dchome.net/viewthread.php?tid=798154 With a lot of information, 香港的星空 — 觀測及拍攝資訊 - http://www.dcfever.com/column/read.php?id=1829 Herman's articles at dcfever - http://www.dcfever.com/column/info.php?id=185 500px tutorial - http://500px.com/blog/738/tutorial-photograph-the-night-sky About Comet - http://www.dcfever.com/column/read.php?id=2193 Atmospheric optical phenomena 大氣光學現象 - http://matthew-chin.blogspot.hk[..]16/06/atmospheric-optical-phenomena.html Stars & Night Sky - http://www.mikkolagerstedt.com[..]top-5-tips-to-photograph-stars-night-sky ===== 這張是11月15日凌晨拍攝的M42獵戶座星雲, 大埔的光害較嚴重, 所以要加上IDAS V4濾鏡作長時間曝光, 分三段不同時間曝光及作Layer Masking 處理, 把動態範圍拉闊. 在月光的影下算是滿意, 希望之後可以分數晚作10小時以上的曝光並加長每一張frame 的曝光時間 (現在是5分鐘一張), 使到暗位的表現進一步改善. Place: Tai Po Date: 14 Nov, 2013 (UT) Camera: Canon 20Da Lens: Canon EF-600 F4L Mount: Vixen Sphinx with Star Book Filter: IDAS V4 Exposure: 10 sec x 10, 30 sec x 10, 300sec x 26 ISO: 800 Guiding: Borg 60mm telescope, AIS120MM, PHD guiding. Image calibration: Dark x 20 (average) for each exposure, Bias x 16 (Median), Dark subtracted Flat field x 20 (Median) Processing: DSS, PS: layer Mask, Cropped, curve, colour adjusted. http://forum.hkas.org.hk/viewthread.php?tid=8009 ===== http://list25.com[..]resemble-things-found-on-earth/?view=all how-to-find-the-milky-way - http://goldpaintphotography.com[..]om/2015/07/24/how-to-find-the-milky-way/ how-to-capture-sharp-star-photographs - http://www.mikkolagerstedt.com[..]10/how-to-capture-sharp-star-photographs 銀河 - 觀測和拍攝 - http://matthew-chin.blogspot.hk/2016/06/blog-post.html 簡易四步驟處理高清銀河 - http://www.dcfever.com/column/read.php?id=3278 TimeLapse-AfterEffects特效『星流跡影片』-進階 - http://www.dcfever.com/column/read.php?id=3935 500 rule: 11mm: 45.5 seconds 12mm: 41.7 seconds 14mm: 35.7 seconds 16mm: 31.3 seconds 18mm: 27.8 seconds 20mm: 25 seconds 24mm: 20.8 seconds 28mm: 17.9 seconds 35mm: 14.3 seconds 50mm: 10 seconds 85mm: 5.9 seconds http://www.price.com.hk/news.php?sec_id=12&id=7216 How to find constellations: a starter’s guide - http://www.zmescience.com[..]eature-post/starter-guide-constellations http://www.deepskycolors.com[..]ilky-Way-Photo-Concepts-You-May-Wan.html 【星空系列教程】銀河及地景拍攝技巧 https://digiphoto.techbang.com[..]ot-to-ensure-the-star-series-tutorial-on https://digiphoto.techbang.com[..]and-landscape-shooting-techniques-middle
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Wed Jun 06 11:59:50 HKT 2018
From /weblog/software_engineering/project
Linus share about project management, most importance is people, and also discuss about tools, how to collabrate people and how to delegate - http://h30565.www3.hp.com[..]Software-Development-Management/ba-p/440 Only the programmer who is going to write the code can schedule it. Any system where management writes a schedule and hands it off to programmers is doomed to fail. Only the programmer who is going to do the work can figure out what steps they will need to take to implement that feature. - http://www.joelonsoftware.com/articles/fog0000000245.html Never, ever let managers tell programmers to reduce an estimate. Many rookie software managers think that they can "motivate" their programmers to work faster by giving them nice, "tight" (unrealistically short) schedules. I think this kind of motivation is brain-dead. - http://www.joelonsoftware.com/articles/fog0000000245.html Micromanagement or Macromanagement? http://boncey.org/2006_10_29_how_to_mentor_programmers But, unfortunately, as a general rule, Project Managers have no training. Even if they do have training in the form of an MBA, MBA education is impractical and useless; the academic community has completely failed us in this respect. Furthermore, Project Managers are more often based on personal friendships and company politics; they are rarely based on management skill. And, finally, most managers do not acknowledge that management is a skill that they must study and learn so they don't study or learn it. http://discuss.joelonsoftware.com[..]DiscussTopicParent=8469&ixDiscussGroup=5 An explanation of agile, I think it is more about project management - http://blog.objectmentor.com/articles/2007/04/23/short-reach Some common problem of software project management - http://ajaxwidgets.com[..]thomas/9_reasons_why_software_project.bb http://ntschutta.com[..]ou-know-your-project-is-in-trouble-when/ http://www.goodproductmanager.com[..]roduct-management-vs-project-management/ Brief description of thoughtworks codejam - http://blog.nona.name/200804274.html Listen first. Measure later. http://digerati-illuminatus.blogspot.com[..]gspot.com/2008/05/measure-or-listen.html Paper of burn up and burn down - http://alistair.cockburn.us/Earned-value+and+burn+charts Per my understanding, we can say burn down is push by management where DEV work as task consumer and completing per define tasks within limited time; where burn up work in the other way round. Why rewrite usually bad - http://www.jroller.com[..]astianKuebeck/entry/why_version_2_0_will Why need to manage user/client - http://dreamhead.blogbus.com/logs/48408290.html The blog list several software projects fail case study - http://www.codinghorror.com/blog/archives/000588.html The law of late project - http://www.commonsense4commonpeople.net[..]et/2009/11/the-law-of-late-projects.html Friendship, what make one big team working - http://blog.objectmentor.com/articles/2010/04/26/pair-management On an Agile Team, a person is removed from the team by assigning them work. - http://www.agileadvice.com[..]e-between-agile-teams-and-project-teamd/ Some say an method "Impact Mapping" is very useful - http://mysoftwarequality.wordpress.com[..]com/2014/07/15/complexity-is-the-excuse/ Transfer project to products - https://www.infoq.com/articles/transform-projects-products Frequent planning - https://www.jrothman.com[..]can-lead-to-short-and-frequent-planning/
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