[kiktkit]

7D+580EXII
內閃唔開可唔可以搖控580EXII
(試過開埋內閃就得)
如果可以,點set??
THX

[Canon Ball]

Set 580EXII to Master and then set the Ch.
Apply the same to camera wireless setting.

[h0001244]

想問……
Canon 用那個方法由 7D 內閃引動外閃的 ？

1. 7D 開內閃，580 離機作 master , 其餘作 slave, 一切setting由580 控制包括ETTL及Manual Output，7D 只作簡單引動及傳送收集 ETTL的數據


2. 7D 開內閃，所有燈作 slave， 一切setting由7D 內控制包括ETTL及Manual Output，……是否即係可以唔買 580 作master ?

有無7D用家可以解解我的迷團呢？ 謝謝

[ronsonhbo]

Hi Canon Ball,
it seem impossible to set the build in flash as master and remote control 580EXII as slave on 7D.
However, we can set build in flash ratio to 1:8 at max, 580EXII as slave with flash ratio at 8:1 or similar.
:)

[ronsonhbo]

For more detail please check this link
http://cpn.canon-europe.com/content/infobank/flash/speedlite_transmitter.do

Enjoy your 7D :)

[h0001244]

quote from web
<<Like the Speedlite 580EX II, the EOS 7D can be used to control up to three groups of slave lights and set ratios or manual power outputs for each group. The flash on the camera can also be used as part of the exposure like a fourth flash group, but because the flash has to fire to instruct the slave flash units, the power output of the built in flash is reduced to a maximum Guide Number of approximately 4. In this setting it may be used to add a small catch light to the eyes of a nearby subject, but it will not provide a large amount of light to illuminate a scene.>>

580 will become meaningless.......except more GN power
I like the GN4 for built flash to get a small light on eyes.

[h0001244]

But even the 580 sometimes doesn't work under bright sunlight and the slave working a bit far away, I have doubt on the internal flash in driving the slaves under sunlight.

[mobile_shop2]

EOS 7D 鏡頭套裝 (連EF-S 15-85mm f/3.5-5.6 IS USM)
港幣18,480元

[alangor]

我試過550ex都可以無線引閃.

首先, 按Menu > 最左邊個相機icon > 最底個flash control (閃燈控掣) > Build-in flash function (內置閃燈功能) > Wireless func. (無線功能) > 你可以揀幾個icon (淨外閃/外閃+內閃)

咁就可以玩飛燈啦.

[h0001244]

alangor, I don't have 7D so I want to ask more
can you manually set the flash output in 7D for controlling your 550EX ?

[alangor]

h0001244, 我第一次玩閃燈, 順便試下無線閃係得唔得咋. 所以我唔係好識一D複雜既操作及設定.

詳情可以睇7D manual P.119-129, 有講內閃及無線外閃既詳細說明

http://www.canon.com.hk/myContent/Product_Tab/DigitalCamera/DigitalSLRCamera/EOS7D/EOS_7D_TC_Web.pdf

[mike0210]

搭單一問,
可以設定內閃唔發光嗎?

[h0001244]

死火，沒有了 「手動閃燈控制」

just checked the manual, it didn't mention any about Manual flash control on 7D to initial the external flashes....only ETTL available

[alangor]

唔好意思, 咩叫內閃唔發光? 即係假閃?

[h0001244]

<<內閃唔發光? 即係假閃? >>

等我猜下先

假閃係咪指即使內閃，也只是為了發放signal給外閃，這一下閃在開快門簾前發生，故並不會於相片見到的
eg.用 580EX 作master, 就算disable master flash 都會見佢有一下閃的，這是signal

內閃唔發光，係咪想話作signal的閃是肉眼看不見的光，例如紅外線？
eg. 聞說ST-E2 就是有片擋可見光的filter作為消除可見光之用，那麼ST-E2發signal時你就看不到了