Archive for December, 2007

旗艦機Nikon D300

Thursday, December 27th, 2007

D300的詳細技術指標網上很多,這裏就不再重複。尼康公司聲稱這是目前DX的旗艦,從指標來看確實如此,與D3一起推出的MultiCAM 3500自動對焦系統也同時被旗艦機Nikon D300使用,這在尼康歷史上還是第一次,而快門準確度保證也達到了15萬次,與過去的專業旗艦機一樣。

我們甚至可以預想未來一些D3用戶也會同時擁有一台D300作為備用機。

尼康這次公佈D3和D300已經說的很清楚,未來的專業相機會使用FX(全幅)而非專業相機使用DX。而很多尼康用戶預料到的全幅相機相容DX鏡頭功能也在D3上成功實現,尼康用戶要關心的是未來是否還應該在DX專業鏡頭上面投資。對此我個人立場很清楚,我手頭上的DX鏡頭已經減少了一個,S10-20已經和D200送兒子了。

有關D300感光器的官方資料不太多,大家最關心的恐怕就是它的出身。

根據過去尼康專業相機感光器不與其他廠家共用而中低檔相機使用市場公開供應產品,我們可以斷定D300的感光器就是索尼剛推出的IMX021或者其相關產品,而索尼已經上市的A-700數碼單反相機的感光器技術指標與IMX021完全相同,我們可以從A-700的表現看到D300的一些影子。

至於D300在圖像品質(IQ-Image Quality)方面是否與A-700完全一樣或者有所超越,按照過去尼康的D80與索尼的A-100差別D300應該與A-700有些不同,比如圖像處理演算法顯然是各自的技術,而低通濾鏡也不相同。A-700目前被批評的成像過軟應該是低通濾鏡強度太高的緣故,與當年尼康的D200一樣。希望D300上市時尼康會使用比A-700稍微弱一些的低通濾鏡。

Nikon D300 Digital Camera一起推出的D3為尼康第一款全幅相機,DX還有市場嗎?從競爭對手Canon的產品線來看非全幅在未來不短的將來還會繼續佔領中低端市場,畢竟非全幅的成本有明顯的優勢。D300的價格只有D3的三分之一,這個價格差別即使對專業用戶也是有很大影響。

Nikon D300的相關鏈接

Digital Camera

無敵手Nikon D300

Nikon D300 Digital Camera is a Right Choice for You

Most Adanced Digital SLR Camera D300

Live View for Nikon D300

The World Doesn’t Have to Be Perfect

Wednesday, December 12th, 2007

Do you want to make everything complete? That’s a simple idea to each person. In fact, most of the time things that we take for granted don’t go as we wish.

Our life can’t be perfect. We hope to get excellent grades. We want to be top students. Every day, we try our best to listen to teachers carefully and follow their instructions. But we often don’t feel satisfied. We face new problems every day.

A patient eagerly expects to be healthy again, but a healthy man doesn’t care about that. A poor man will be very happy when he buys something cheap; a rich man can’t understand this.

Then, can things around us be perfect? No. For example, when you stare into the bright moon hanging in the deep sky, you may feel, how beautiful it is! The truth is that, the beauty of the moon is presented not only through its brightness. More importantly, it is incompleteness that inspires us imagination and deep thought. Assuming that our unlimited imagination and deep thoughts are seeds, we can say the moon’s incompleteness is the fertile soil that makes the seeds sprout and grow. Poor Sushi had sung in his famous poem:

In other words, if the moon did not wax and wane, we would find that it is not only complete but also ugly.

It is just the fragmentary part that makes things perfect. A man without any failures, in some sense, is a poor man. He can’t know the joys of hopefulness and the pains of struggle. When you read of Hamlet, who finally perished together with the venomous king, didn’t you sigh? When you found Chaste Tess’s ending could only be death, weren’t you shocked with grief? What moved you so greatly? It is the unperfected part.

Here is another story: Once, there is an incomplete circle, which rolled here and there to look for its missing part. Because the circle was not complete, it rolled very slowly. So it had enough time to talk with worms and enjoy the warm sunshine. Finally, its dream came true. However, as a completed circle, it rolls so fast that it can no longer talk with worms or have a rest in the lovely grass. When the circle realized it, it threw away the missing part that it had just found.

A wise man knows he ought to give up something at the right time. The person who gives up the dream he can’t realize is perfect; the person who values his experience of failure is perfect. Say no to perfection. The world doesn’t have to be perfect.
 

Sick Girl

Saturday, December 1st, 2007

 Amy Silverstein was a Phi Beta Kappa scholar who had just finished her first year of law school at New York University. She was madly in love with a fellow law student who was a summer associate at the same prestigious firm. When a palm reader in Atlantic city told her she would have four children and along, health life, she was only months away from experiencing the tightness in her chest, the fainting spells, and the episode of temporary blindness that heralded her rapid, harrowing descent into early heart failure. After an eight-month wait, Silverstein had a heart failure. After an eight-month wait, Silverstein had a heart transplant and was told she could expect to live no more than 10 years. The new heart, she learned, had come from a 13-year-old girl.
    Now 44, married to her law student love, with an adopted son now in his early teens, Silverstein had lived with her transplanted heart, far beyond all expectation, for almost two decades.
    The odds confronted in Silverstein’s memoir, Sick Girl, are daunting, and the crowning miracle is that she wrote this feisty, insightful, improbable book at all. A daily regimen of immunosuppressant drugs makes her sick while keeping her alive. She has endured unending rounds of doctor appointment, painful and invasive procedures, and emergency hospitalization.
    In her words, “The illnesses that managed to get resolved did so in spite of never having been diagnosed and understood in the first place……Even the way in which I managed to stay healthy……remained unexplained mysteries that challenged my doctors and made them feel uncomfortably less than omniscient.”
    What is clear is that Silverstein has cheated death to thrive in her post-transplant existence and to write about it with incredible courage, determination, self-scrutiny, and verve.