[cylic]

本人用CANON500D 用 18-200 ....
想問... 去演唱會... 坐第八行到....
影相... 閃光燈須要用嗎...!?

[mickey9801]

不要少看舞台燈光的亮度，我影過5-6次都無用閃燈，一來站得近，照光晒個台無晒氣氛，站得遠（一般是大斜角的5-6行）支燈都無咁好力，只係照光晒前面的人頭而已。

[cylic]

SORRY... 都係唔係好明...
咁... 即係... 須唔須要用閃光燈呢...!?

[mickey9801]

我的習慣是不用，只調校光圈和ISO

[snoopybee]

首先唔好計燈色效果, 什麼射燈黃黃綠綠, 你支燈又白色咁麻煩住. 你估一支燈個 GN 值可以有幾大, 射到幾多尺? 三十尺都係講緊五、六行.

所以你在 concert, 無論人家用 DC 或 D3 / 1D, 只要佢用閃燈, 你就可以大約知道佢有幾多斤両.

[ed_ca]

Sorry, I want to ask.

Do they let you bring DSLR into concert?

[snoopybee]

Why not? I always bring a tripod with me with my D70s+LB3 (haven't been to concerts lately). I only experienced one concert (forgot if it was Jacky Cheung's World Tour or someone else) which banned photo taking.

[mickey9801]

我個人覺得三腳架唔係咁有用，因為演唱會唱歌跳舞，快門唔可以慢得太離譜，1/30秒只能勉強應付。也不會張張相都會想影到好有動感的，所以最後還是要靠用大光圈和大ISO來拍。像拍水木一郎時，大哥鍾意跑出跑入，無可能再較慢個快門。

[snoopybee]

你講得有理. 以我經驗, 腳架幫到唔多. 不過當唱緊慢歌時, 燈光較暗,加左腳可以立刻推番低個 ISO, 張相亦可以少很多 noise. 睇器材啦, 以前部 D70s, 最高得果 1600, 其實 800 都很多 noise. 依家 upgrade 左, 應該可以唔使用 ^.^

[kwonghoyan]

snoopybee said:
首先唔好計燈色效果, 什麼射燈黃黃綠綠, 你支燈又白色咁麻煩住. 你估一支燈個 GN 值可以有幾大, 射到幾多尺? 三十尺都係講緊五、六行.

所以你在 concert, 無論人家用 DC 或 D3 / 1D, 只要佢用閃燈, 你就可以大約知道佢有幾多斤両.

Reply:
Not only use the GN to measure the subject distance.
Need to consider : ISO , Aperture

For example:
GN : 52 (580EX Full power)
Aperture: F2.8
ISO : 200
Subject Distance will be 26.26m

You can see many people using Flash in fashion show.....They are not professional??????????

[lokism3]

Flash gun - NO use

Refer to my previous post reply, I stayed my skill to share:
http://www.dcfever.com/forum/read.php?f=7&i=26287&t=26287

[kwonghoyan]

I just want to say that the GN calculation.

And your post only concerned in a light enough environment......

[snoopybee]

"Subject Distance will be 26.26m". SO? Or you haven't been to any concert before? Do you know how big the stage is? Even you are sitting in the first row, how far is the distance between you and the performer? Smartie boy.

Your "sophisticated" calculation doesn't seems to be helping much with your arguement.

Fashion show is with a totally different environment where most photographers (at least for the press release) would be in a close distance from the models.

[snoopybee]

Plus, I didn't aware that you like to use F2.8 AND ISO 200 in a concert.

Be practical! 紙上談兵是沒有意義的.

[mickey9801]

我想其實影甚麼event都要看情況和用途，Fashion show雖然都有動作，不過畢竟不及演唱會激烈，加上Fashion show的目的是展示時裝，拍攝時是否能拍出服裝的細節比拍出氣氛更重要，所以要用閃燈或慢快門也無可厚非。

不過演唱會就不同，我希望拍出當時的氣氛和歌手的動態，例如這張相（拍得不好請勿見怪，但始終想找些例子說明一些現實問題）：


這張相是在九展演講廳拍的，當時我跟歌手只相距2.4米，絕對是閃燈的射程之內，不過你可以想像一下，在這個情況之下開閃燈會發生甚麼事情？你得到的是1/200秒的快門，400那麼低的ISO，或許可以好好凝住歌手的動作。不過，Backdrop會給照得光光的，舞台上的電線燈架布幕全都看得清清楚楚，歌手的膚色像白天在街上一樣，橙黃色的舞台燈甚麼都看不見了吧，一點氣氛也沒有。不信？自己看。


此外，我想TTL-II也跟不上瞬時變化（不論光暗或顏色）的舞台燈光，作出正確閃光吧？

所以，我寧願儲點錢買支光圈大些的鏡頭，把ISO提高到1600，也不會去想用閃燈。