學年將結,facebook上充斥著兩類留言:一年級的同學在高乎受騙,三年級的同學則在為前途惆悵。一時間,彷彿經濟系是吃人黑店、賣豬仔的奸商。適逢和一位舊同學敘舊,席間亦談到香港經濟系畢業生的出路問題:經濟系畢業生在美國十分吃香,為何在香港卻是不如人意呢?
就課程設計來說我們和美國並無分別。但想深一層,無分別可能正是問題所在。
學生趨之若騖的專業,不外乎醫科、法律、會計及商科等。在美國這大多是第二學位,學生本科時很多選讀相對百搭的經濟系。在這制度下,相對理論化的課程問題並不大,甚至在博雅教育的概念下是好事。
在香港,上述的專業通通都是第一學位。這一來有兩個效果:
一, 高質素的學生,很多去了直接相關的各學系。經濟系的畢業生亦因比面對著先天性的訊息傳遞(signaling)問題—你入經濟系而非精算系,想必是你能力不夠高吧?
二, 理論化的課程不合學生所需。當大部份學生預期畢業後真接投身職場,經濟系教授的大量述描模型就顯得不切實際,因為除了少數研究工作,實在沒甚麼職業需要用著經濟模型。或說學生學了如何理性思考,但這對要找工作的學生來大概只能說是奢侈品。
從根本上來說,在大學教育職業學校化下傳統的經濟學課程並不符合香港學生所需,但研究上則需要大量經濟學教研人員。面對職場現實,香港大部份院校的應對方法很直接—把經濟系併入商學院,甚至把金融和經濟合為一系。在中大現行的架構下這不大可能發生。其實中大經濟系金融課程之數目已遠超一般經濟系,總不成經濟系也變成一另所商學院吧?
Category Archives: General
有朋友問為甚麼我近年的攝影作品少了那麼多。原因大概是打從一開始我的作品就離不開工作—校刊的運動與新聞照如是,近年的特約人像攝影亦如是。現在的我滿足於在每次朋友親人聚會中拍出最好的合照。大概不少朋友對我那便攜但「頭重身輕」的相機配搭印象深刻吧 ^_^!
A friend asked why I do not seem to be taking as many photos as before. I guess the reason is, photography has been work-related for me all long, from journalistic photos for the school magazine to commissioned portraits in recent years. The current me is satisfied with taking the best group photos possible in gatherings of friends and family—some friends probably remember the portable, top-heavy camera I bring with me these days ^_^!
將軍澳以至香港整體規劃的問題並不在於無街,亦不在於千遍一律。正如文末所說,是有人喜歡香港的方便,喜歡連鎖店的效率。真正的問題我認為有二:
一,比較表面的是地產壟斷問題,由政府牽頭,各大地產商和應。地產商作為商業機構,發展模式當然以消費為主。但壟斷主要影響價格,即使打破壟斷也不見得生活會變得多元化。
二,深層的問題是香港的地域流動可能性太低。在歐美要方便,可以住城市,要便宜密度低,可以住郊區。香港現在可是沒有郊區—君沒聽說,現在元朗亦算是市中心麼?
在別的地方,當一個城市用盡可發展空間,一般會考慮擴張或與週邊同城化。紐約市和廣州市都是例子。這一過程會做就新的郊區,居民不會沒有選擇。香港作為一個擁有自己邊境的城市卻不能這樣做:不要說內地不會同意,香港人也不見得樂觀其成。
結果香港就成了困獸鬥—城市在發展的巨輪下變得一元化,在內求變的的卻沒有出路。
De-clicking Canon FD lens to get stepless aperture
Dedicated video lenses usually feature stepless aperture to allow for smooth adjustment of exposure. Most still photography lenses, in contrast, feature stepped aperture adjustment. This guide demonstrates how to “de-click” Canon FD lenses to get stepless aperture.
Before you continue, note that
- De-clicking is easy. All you need to do is to unscrew the rear and take out one or two things.
- The process will not introduce dust into your lens—the optical assembly is sealed in one piece inside the lens.
- There is a “cheat” that gives you continuous aperture adjustment without the hassle of opening up the lens. All you need to do is set your lens to the smallest aperture, then turn the ring on the FD adapter. The downside of this cheat is you do not have any indication of which f-stop you are at.
With that in mind, if you still believe de-clicking is useful—and I personally do find that being the case—here is a quick demonstration on how to do so.
1. Take apart the lens from the rear and remove parts that cause un-smooth movement

You need to remove the two parts indicated by the blue arrows if you want the aperture ring to rotate smoothly. If you can stand the un-smoothness, however, you can keep the parts on—with the parts on, step 2 alone is actually sufficient to give you stepless aperture.
2. Remove the piston

On lens such as the the 28mm—in which you lock by rotating the whole lens—the piston underneath the aperture ring provides the click. Remove the piston de-clicks the lens. If you have kept the two parts on in the first step, you can now re-assemble the lens.
If instead your FD lens locks with a rotating metal ring, you will need to remove the two ball bearings inside the aperture ring.
3. Removing the spring holding the aperture selector

At this point if you re-assemble the lens without the jiggering parts, you will notice that the aperture bounces back when you try to set a small aperture. This is due to the spring mechanism used in FD lens’ aperture control: the aperture ring is actually only capable of driving the aperture in one direction; reverse movement is driven by the spring holding the aperture selector. Removing the spring solves this issue.
4. Linking the aperture ring to the aperture diaphragm

Because the aperture ring is designed to only drive the aperture in one direction, you need to manually link the aperture ring to the diaphragm. Here I used a short polyester thread, lopping around the coupling pin on the diaphragm and held underneath the link on the aperture ring. Make sure the aperture size match up with the f-stop indicated on the aperture ring.
If your FD lens locks with a rotating metal ring, you will be lopping around the coupling fork instead:

5. Re-assemble the lens. It’s done!
I have the same view. It’s not that demand for journalistic photo has decreased, but rather the supply has vastly increased, thanks to ever more amateur photographers with ever better skills and cameras. The result is an increase in journalistic photos, but a substantial decrease in professional photojournalism.
‘No Future in Photojournalism’ Interview: Dan Chung: Digital Photography Review
全個Facebook Feed都係龍年賀詞,咁我都祝大家亢龍有悔、飛龍在天、潛龍勿用、見龍在田、神龍擺尾、雙龍取水、時乘六龍同龍戰於野!
Just saw this on my Facebook News Feed: “X and Y are now friends after going to Event Z.” Wow FB, you really know a bit too much about us.
破窗理論促進就業–街頭實例
畫面右方的人兄一貼街招,左邊的食環署外判清潔工嬸嬸就緊隨著撕。撕完又貼、貼完又撕。人兄沒有怪嬸嬸撕、嬸嬸亦沒有阻止人兄貼。兩個人各安本份有工開。
Parable of the Broken Window in Practice
Right after the man on the right post the yellow flyers, the street sweeper on the left torn them down. That is, before the man post more up on the same spot. Neither tried to stop the other from doing their jobs, and the economy has two more jobs secured.

婆:「個商場叫咩話?」
我:「APM。」
婆:「ABM?」
我:「A*P*M。」
婆:「ACM?」
我:「…下次都係我代妳叫的士。」
結論:希望商場嘅中文名要放多啲當眼處,用晒英文老人家好唔方便。
范 徐 麗 泰 : 參 選 與 否 看 民 意 無 悔 支 持 唐 英 年
全 國 人 大 常 委 范 徐 麗 泰 說 , 支 持 唐 英 年 時 不 知 道 對 方 的 緋 聞 , 但 無 後 悔 支 持 他 。 她 重 申 , 參 選 與 否 留 待 民 意 決 定 。 她 出 席 中 大 座 談 會 時 被 問 到 對 六 四 事 件 的 看 法 時 說 , 香 港 人 接 觸 的 資 料 來 自 外 國 傳 媒 , 無 權 就 非 親 眼 見 的 事 作 評 論 。
范常委教我看凊,我們可以談論的事原來真的很少—當今世代誰都沒見過孔子、沒見過耶穌、沒見過恐龍、也沒見過反物質,所以這些事物我們渺小的人類通通都無權過問。要求這般嚴謹,可見常委崇高之教育理念。
一眾傳媒政客指責常委是機會主義者,其實亦是誤解了常委的智慧—絕大部份港人從未親眼見過范常委,他們根本就不應對她有任何意見。所以常委所說的「民意」明顯只是一眾小圈子選委。如此明言在先,常委不愧為真君子。
唐唐英英,鬥反智,你們還遠遠未到家呢。