RSS feed [root] /




login:

password:

title search:




 


Sun Jul 23 22:00:11 HKT 2017



(google search) (amazon search)
second
download zip of files only

Tue Feb 20 23:48:01 HKT 2018 From /weblog/photographic

tutorial



About marco photograhy - http://www.dpreview.com[..]7237/depth-of-field-in-macro-photography

動 態 攝 影 分 享 - http://www.dchome.net/viewthread.php?tid=432312 http://patricklenz.com[..]ts/gymnastics-fundraiser-portfolio-shoot http://www.dcfever.com/news/readnews.php?id=14264&link=guid

世盃攝影師落場 三機三鏡是基本 - http://worldcup2014.appledaily.com[..]om/realtime/all/latest/20140624/52618252

India guide - http://www.dchome.net/viewthread.php?tid=481974

請問點影一個人行緊過黎既情景 - http://www.dchome.net/viewthread.php?tid=753867

http://digital-photography-school.com[..]chool.com/how-to-take-great-group-photos

Street photographic - http://www.dchome.net/viewthread.php?tid=819443 http://www.dcfever.com/column/read.php?id=1562 , 呈圓狀, 二等分, 重覆式, 同形狀

What is the real meaning of Aperture in zoom len - http://digitaljournalist.org/issue0909/tech-tips.html

How to take building photo look proper vertically - http://www.dchome.net/viewthread.php?tid=833344

How to take astro landscape photo - http://www.hokoon.edu.hk/astro/photocontest/astro_landscape.html

How to take a good photo - http://www.dpreview.com/articles/4491391950/evolution-of-an-image

Think about composition rule - http://www.dpreview.com/articles/1304360703/breaking-the-rules

http://www.petapixel.com[..]or-beautiful-light-painting-photographs/

Using shifted len to create create landscape photo - http://www.dpreview.com/articles/9496515776/the-dslr-field-camera

http://erickimphotography.com[..]-can-teach-you-about-street-photography/

你也可以做得到]超簡易DIY證件相拍攝 - http://www.dcfever.com/column/read.php?id=2070

淺談燈光人像, 逆光和壓光 - http://www.dcfever.com/column/read.php?id=2020 http://wlcreative.com[..]%87%E7%87%88%E5%85%89%E4%BA%BA%E5%83%8F/ http://www.dcfever.com/column/read.php?id=3988

Tutorial about using DSLR to take good movie - http://www.dcfever.com/news/readnews.php?id=9500&link=guid

How to take cloud sea photo - http://www.dcfever.com/column/read.php?id=2273

Informaton of light pillar - http://www.islandnet.com/~see/weather/eyes/pillars.htm

How to take Lightning photos - http://www.dcfever.com/column/read.php?id=2456

How to take children photo - http://www.dcfever.com/column/read.php?id=2487

進階對焦技巧 – 快門對焦分開處理 - http://wlcreative.com[..]%A6%E5%88%86%E9%96%8B%E8%99%95%E7%90%86/

水底攝影入門(一):水底光線的考慮 - http://www.dcfever.com/column/read.php?id=2459

http://petapixel.com[..]active-photography-skill-tree-beginners/

Zone system - http://www.mobile01.com/topicdetail.php?f=257&t=2487912

How to use flash in studio - http://www.dcfever.com/fillens/read.php?id=308

Tips of taking photo for wild life - http://cn.wsj.com/big5/20150601/PHO101044.asp

TimeLapse tutorial - http://www.dcfever.com/column/read.php?id=3381 http://www.dcfever.com/news/readnews.php?id=20997

用小電筒照出静物「封面相」 - http://www.dcfever.com/column/read.php?id=3937

How to find your vision? practice, practice, practice - http://www.mikkolagerstedt.com[..]3/how-to-find-your-vision-in-photography

拍出令人心動的女生照片,分享如果教導模特兒擺 POSE - http://www.dcfever.com/column/read.php?id=4370

How to show dimension - http://digiphoto.techbang.com[..]the-construction-of-space-in-photography

How to take food photo - http://letsfilm.org/archives/320676

How to tone color - http://digiphoto.techbang.com[..]-ideas-learn-to-tone-and-color-control#_

Common shutter speed - http://digiphoto.techbang.com[..]professional-photographers-shutter-speed

12-photo-posture-tips-make-your-characters-just-like-professional-models -
http://digiphoto.techbang.com[..]-just-like-professional-models-beautiful

人像攝影經驗分享,幾個提升拍攝技巧的要點 - http://www.dcfever.com/column/read.php?id=4663

初學者也能拍出唯美畫面:攝影師教你捕捉絕美風景照的4步驟 - https://digiphoto.techbang.com[..]ture-the-stunning-scenery-of-the-4-steps

想拍漂亮的散景靜物嗎?6步驟DIY一個超絢麗散景牆, with 鋁箔或銀色包裝紙 - http://digiphoto.techbang.com[..]steps-to-a-super-gorgeous-diy-bokeh-wall

3D photographic technique - http://www.dchome.net/viewthread.php?tid=266665&extra=page%3D1

(google search) (amazon search)


Tue Feb 20 23:44:08 HKT 2018 From /weblog/photographic

star


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

(google search) (amazon search)


Tue Feb 20 23:39:39 HKT 2018 From /weblog/photographic

lighting


Good use of night make everthing change - http://www.avbuzz.com/bbs/model/model-thread-80887.html

Tutorial: How to shoot a martini splash photo using only speedlights - https://www.dpreview.com[..]ly-speedlights?ref_=pe_1674010_132618830

An ok book that introduce how to setup lighting for indoor portrait - http://www.books.com.tw/exep/prod/booksfile.php?item=0010353837


(google search) (amazon search)


Tue Feb 20 09:58:45 HKT 2018 From /weblog/science/animal

cat


https://list25.com/25-bizarre-cat-facts-you-need-to-know/

(google search) (amazon search)


Mon Feb 19 23:30:09 HKT 2018 From /weblog/computer+science

compiler


Bootstrapping a compiler from nothing. - http://discuss.joelonsoftware.com/default.asp?design.4.357910

ON TAIL CALL OPTIMISATION - https://codurance.com/2017/12/05/on-tail-call-optimisation/

What LLVM can do, and cannot do - https://www.infoworld.com[..]er-behind-swift-rust-clang-and-more.html

(google search) (amazon search)


Mon Feb 19 23:26:54 HKT 2018 From /weblog/unix

filesystem


Advisory Locking and Mandatory Locking - http://www.thegeekstuff.com/2012/04/linux-file-locking-types/

Basic info of inode - http://www.thegeekstuff.com/2012/01/linux-inodes/

Explanation of /proc filesystem - http://www.redhat.com[..]anual/ref-guide/s1-proc-directories.html

Linux file system structure - http://www.thegeekstuff.com/2010/09/linux-file-system-structure/

File system for archive files - http://linuxtoy.org/archives/avfs.html

BeOS file system, other than discuss about BeOS FS, also discussing about evolution of design of file system - http://arstechnica.com[..]rce/news/2010/06/the-beos-filesystem.ars http://arstechnica.com[..]03/past-present-future-file-systems.ars/

ZFS - http://www.thegeekstuff.com/2015/07/zfs-on-linux-zpool/ https://clusterhq.com/2014/09/11/file-systems-data-loss-zfs/ http://www.linuxjournal.com/content/zfs-linux

The file size of command "df" return is compressed data, raw disk usage
If we want compress amount, we need to get the compressratio using /usr/sbin/zfs
We can get more system detail via perl package Sun::Solaris::Kstat , we can google "arc_summary.pl" as an example

Using ZFS as version control - http://zef.me/blog/6023/who-needs-git-when-you-got-zfs

(google search) (amazon search)


Mon Feb 19 22:29:04 HKT 2018 From /gallery/Day+Trip/%E9%BE%8D%E9%96%80%E9%83%8A%E9%81%8A%E5%BE%91

BURST20180219122616052



(google search) (amazon search)


Mon Feb 19 22:28:58 HKT 2018 From /gallery/Day+Trip/%E9%BE%8D%E9%96%80%E9%83%8A%E9%81%8A%E5%BE%91

BURST20180219122346078_COVER



(google search) (amazon search)


Mon Feb 19 22:28:57 HKT 2018 From /gallery/Day+Trip/%E9%BE%8D%E9%96%80%E9%83%8A%E9%81%8A%E5%BE%91

BURST20180219122342186_COVER



(google search) (amazon search)


Mon Feb 19 22:28:53 HKT 2018 From /gallery/Day+Trip/%E9%BE%8D%E9%96%80%E9%83%8A%E9%81%8A%E5%BE%91

BURST20180219122338318_COVER



(google search) (amazon search)


Mon Feb 19 22:28:49 HKT 2018 From /gallery/Day+Trip/%E9%BE%8D%E9%96%80%E9%83%8A%E9%81%8A%E5%BE%91

BURST20180219122334154_COVER



(google search) (amazon search)


Mon Feb 19 22:28:46 HKT 2018 From /gallery/Day+Trip/%E9%BE%8D%E9%96%80%E9%83%8A%E9%81%8A%E5%BE%91

PANO_20180219_122246



(google search) (amazon search)


Mon Feb 19 22:28:40 HKT 2018 From /gallery/Day+Trip/%E9%BE%8D%E9%96%80%E9%83%8A%E9%81%8A%E5%BE%91

BURST20180219122143366_COVER



(google search) (amazon search)


Mon Feb 19 22:28:33 HKT 2018 From /gallery/Day+Trip/%E9%BE%8D%E9%96%80%E9%83%8A%E9%81%8A%E5%BE%91

BURST20180219122100525_COVER



(google search) (amazon search)


Mon Feb 19 22:28:32 HKT 2018 From /gallery/Day+Trip/%E9%BE%8D%E9%96%80%E9%83%8A%E9%81%8A%E5%BE%91

BURST20180219122048448_COVER



(google search) (amazon search)


Mon Feb 19 22:28:29 HKT 2018 From /gallery/Day+Trip/%E9%BE%8D%E9%96%80%E9%83%8A%E9%81%8A%E5%BE%91

BURST20180219121804527_COVER



(google search) (amazon search)


Mon Feb 19 22:28:26 HKT 2018 From /gallery/Day+Trip/%E9%BE%8D%E9%96%80%E9%83%8A%E9%81%8A%E5%BE%91

BURST20180219121652563_COVER



(google search) (amazon search)


Mon Feb 19 22:28:22 HKT 2018 From /gallery/Day+Trip/%E9%BE%8D%E9%96%80%E9%83%8A%E9%81%8A%E5%BE%91

BURST20180219121535817_COVER



(google search) (amazon search)


Mon Feb 19 22:28:20 HKT 2018 From /gallery/Day+Trip/%E9%BE%8D%E9%96%80%E9%83%8A%E9%81%8A%E5%BE%91

BURST20180219121141270_COVER



(google search) (amazon search)


Mon Feb 19 22:28:16 HKT 2018 From /gallery/Day+Trip/%E9%BE%8D%E9%96%80%E9%83%8A%E9%81%8A%E5%BE%91

BURST20180219120453771



(google search) (amazon search)


Mon Feb 19 22:28:14 HKT 2018 From /gallery/Day+Trip/%E9%BE%8D%E9%96%80%E9%83%8A%E9%81%8A%E5%BE%91

BURST20180219120454902



(google search) (amazon search)


Mon Feb 19 22:28:10 HKT 2018 From /gallery/Day+Trip/%E9%BE%8D%E9%96%80%E9%83%8A%E9%81%8A%E5%BE%91

BURST20180219120446183



(google search) (amazon search)


Mon Feb 19 22:28:07 HKT 2018 From /gallery/Day+Trip/%E9%BE%8D%E9%96%80%E9%83%8A%E9%81%8A%E5%BE%91

BURST20180219115820575_COVER



(google search) (amazon search)


Mon Feb 19 22:28:03 HKT 2018 From /gallery/Day+Trip/%E9%BE%8D%E9%96%80%E9%83%8A%E9%81%8A%E5%BE%91

BURST20180219112306580



(google search) (amazon search)