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Obi-Wan
註冊: 2006-02-06
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 Good sites, have a look! Post time: 4 月 6 日 |
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http://www.photozone.de/focal-length-and-perspective#
http://www.canon.com.cn/specialsite/canon_portrait/15.html
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vdo
註冊: 2010-02-07
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| Re: Good sites, have a look! Post time: 4 月 6 日 |
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thx Obi-Wan
85mm定焦鏡 拍攝人像是1:1size 變形最少的；表面來說 若over 85mm 人睇落會漲啲，under 85mm 人睇落會slim啲，所以絕大部份model攝影師都不會用超過 100mm鏡去拍攝人像，焦距越長雖可帶來壓縮感，但長焦鏡也會令model面型拉闊，我認識一班人像攝影師他們袋內大多數只得三支鏡....
(1) 50mm
(2) 85mm
(3) 16-35mm
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Obi-Wan
註冊: 2006-02-06
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| Re: Good sites, have a look! Post time: 4 月 6 日 |
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"長焦鏡也會令model面型拉闊" yes!
For portrait I use
5D2 + 50mm 1.4 + EF 135mm/2.8 Soft focus
or
50D + 24-105/f4 + Tamron 90mm
very seldom use > 135 mm
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Marksman01
註冊: 2008-11-24
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| Re: Good sites, have a look! Post time: 4 月 6 日 |
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I have 12-24, 50 and 100 for walk around, it can cover most situation like landscape, protrait, .....etc
I still prefer zoom and tele for action shot and animal
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vdo
註冊: 2010-02-07
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| Re: Good sites, have a look! Post time: 4 月 6 日 |
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早晨Marksman兄，週日摩星嶺有冇興趣？ ^^
Obi-Wan，影BB我用7D + 50mm or 24-70mm；影model我用5D + 85mm or 50mm or 16-35mm
thanks for sharing
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Marksman01
註冊: 2008-11-24
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| Re: Good sites, have a look! Post time: 4 月 6 日 |
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早晨vdo兄, 比左PM你了
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vdo
註冊: 2010-02-07
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| Re: Good sites, have a look! Post time: 4 月 6 日 |
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Replied
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reflexboy
註冊: 2009-02-23
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| Re: Good sites, have a look! Post time: 4 月 6 日 |
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Looks like you have started to learn more about the fundimentals Obi Wan! That's good! Keep your spirit up!
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petercyc
註冊: 2003-11-30
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| Re: Good sites, have a look! Post time: 4 月 6 日 |
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Thanks for sharing! Interesting!
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afriwong
註冊: 2008-06-06
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| Re: Good sites, have a look! Post time: 4 月 6 日 |
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Canon個Web Site幾好…
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阿瑜
註冊: 2009-10-02
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| Re: Good sites, have a look! Post time: 4 月 6 日 |
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Thanks for sharing. it is good to know
per the link below, 雖然筆者應是用唔同的lens for comparison, 除焦距外, 相信相機和其他的setting都相同, 但見焦距越長, 色彩越淡, 是不是長焦距會令色彩降低?
http://www.canon.com.cn/specialsite/canon_portrait/16.html
p.s. 這裡說的虛化是不是等如散景? 和色彩有沒有關係?
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Obi-Wan
註冊: 2006-02-06
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| Re: Good sites, have a look! Post time: 4 月 7 日 |
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"焦距越長, 色彩越淡, 是不是長焦距會令色彩降低?"
not due to the tele lens itself, it is due to the scattering effect of tiny particles in air, the blue color will be scattered more.
This is effect is called the "Rayleigh scattering" which affect blue color more
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阿瑜
註冊: 2009-10-02
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| Re: Good sites, have a look! Post time: 4 月 7 日 |
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ha ha.. sorry, 原來我miss咗website中最底下的一段關於色彩的.
看來50-135mm 這段 是在色彩和散景取捨之中最平均的.
其實有冇辨法可以將色彩調得豔麗一些? 不知是不是Canon 的特點, 還是我部400D的死穴, 我的風景相傯是偏灰的, (我己將saturation較高了), 但見隔離台, Nikon, 的相片豔麗非常, 但有時又發覺隔離台有個別師兄的相實在 “太” 豔麗了, 豔麗得有些artificial. (註: 純屬個人觀感及偏好, 絕無侵犯之意, 也不想挑起大戰, 如言詞之間令師兄師姐誤會及令您們感到唔舒服的話, 本人在這裡說聲對不起), 雖然我個人發覺Canon很多時有些偏灰及偏淡, 但又鍾愛Canon lens 影出來那份柔和及自然(尤其是人像相), 相信這些PS是不易做到的.
但風景相我確是偏愛豔麗及明亮一些, 如果可以改改setting, 調較到在Canon 及 Nikon 之中取得平衡就好了.
不知有沒有師兄可以分享吓經驗?
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阿瑜
註冊: 2009-10-02
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| Re: Good sites, have a look! Post time: 4 月 7 日 |
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Thanks Obi-Wan 師兄, 那麽用CPL會唔會好些?
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Obi-Wan
註冊: 2006-02-06
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| Re: Good sites, have a look! Post time: 4 月 7 日 |
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CPL cannot eliminate Rayleigh scattering, because the blue light has been scattered to 90° of the light direction
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