近日收到不少網友意見,指 DCFever.com「吹水閒聊」充斥愈來愈多粗言穢語、人身攻擊、誹謗等不理性討論。作為 一個以攝影興趣為主題的網站,此等漫罵式討論已超出 DCFever.com 設立討論區之原意。DCFever.com 呼籲大家以 攝影交流為目的作理性討論,並正密切留意事態的發展。
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gmini
註冊: 2004-07-30
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Sigma EF-500 DG Super VS Canon 550Ex Post time: 1 月 24 日 |
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其實SIGMA個支功能上可與550EX比嗎?
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gmini
註冊: 2004-07-30
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Re: Sigma EF-500 DG Super VS Canon 550Ex Post time: 1 月 24 日 |
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有冇人比較過丫?
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dixonkwok
註冊: 2002-11-14
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Re: Sigma EF-500 DG Super VS Canon 550Ex Post time: 1 月 25 日 |
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I bought a 2nd hand 550EX after considering EF-500DG. 550EX is better for :
1. Horizontal 5 focus points linked to camera. Sigma only link to centre focus point. 580EX links to all 7 focus point in 300D.
2. Built for 550EX is better but much bigger than sigma.
3. Wireless flash can be both master and slave. Sigma can only be slave.
4. GN55 VS Sigma GN50 is little bit higher and hence recharge is longer for canon 550EX.
5. Sigma (HK$1700) is much cheaper than 550EX (HK$2500).
I would recommend 550EX for its compatibility and built.
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cody1029
註冊: 2003-08-01
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Re: Sigma EF-500 DG Super VS Canon 550Ex Post time: 1 月 25 日 |
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但有人話canon 550ex 有時會爆晒光喎,影到個人塊面白雪雪。
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dixonkwok
註冊: 2002-11-14
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Re: Sigma EF-500 DG Super VS Canon 550Ex Post time: 1 月 26 日 |
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I tried many times and haven't had any of this problems so far. The E-TTL in 300D works perfectly but the flash diffuser needs to be always "ON" so as to widen the flash coverage.
Also, I can set the flash expsoure compensation right at the flash so as to avoid any under or over flash exposure.
It is a matter of skill that flash photgraphy needs more skills for perfect shots.
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HASE
註冊: 2003-03-09
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Re: Sigma EF-500 DG Super VS Canon 550Ex Post time: 1 月 26 日 |
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"1. Horizontal 5 focus points linked to camera. Sigma only link to centre focus point. 580EX links to all 7 focus point in 300D."
如果系相機set到中間個點對焦, 咁系咪兩枝都一樣?
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gaiuswong
註冊: 2004-03-18
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Re: Sigma EF-500 DG Super VS Canon 550Ex Post time: 1 月 26 日 |
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更係唔一樣啦,除左Links 7點對焦外,580EX係針對CCD反光影響ETTL測光準確度加以改良,配合ETTL-II效果比550EX準確,咁當然一定比EF-500 DG Super 準啦,係一支真正既數碼燈,而550EX係跟EOS1V/ EOS3 film機出既,當時冇預數碼機用,Nikon都出過支 i-TTL 新燈啦.
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