[house]

有人話大圈鏡頭除光圈大D淺D景深，當收細光圈時無左淺景深，就和細光圈鏡完全無分別，例如300f/2.8收到f/4，就同300f/4無分別，影像唔會靚D，真唔真？

[manpo79]

一支鏡靚唔靚要講好多野
就算同一焦距同一光圈都有分別

[FreeMiLk]

What a newbie question...
不如你問部法拉利開60個陣系咪同部的士開60個陣一樣快啦。。。

[pigpig2000]

<<<What a newbie question...
<<<不如你問部法拉利開60個陣系咪同部的士開60個陣一樣快啦。。。

====================================================
既然知道係新手，重乜你又唔幫吓佢呢? <_<

[FreeMiLk]

既然知道係新手，重乜你又唔幫吓佢呢? <_<
-----------------------------------------------------------------
如期系度問，不如自己買本入門書先啦。。。


例如300f/2.8收到f/4，就同300f/4無分別，影像唔會靚D，真唔真？
-----------------------------------------------------------------
咁我想問，咩叫靚D呀？

[pigpig2000]

咁有冇乜野入門書推介呢 ^_^

[FreeMiLk]

咁有冇乜野入門書推介呢 ^_^
------------------------------------------
書店大把啦。。就算唔買書都應該自己上網扒下文先。。
我覺得用得單反。。最少要知　ISO/ Aperture/ Shutter speed 嘅
關系先啦。。。

[pigpig2000]

如果網上冇人講嘅話，扒到成隻扒地熊都冇用啦。
去到書局到，書海忙忙，睇怕樓主要幾富貴吓先掂。

==================================

<<<例如300f/2.8收到f/4，就同300f/4無分別
-----------------------------------------------------------------
樓主你一句裡面有兩樣野要考慮，
(至於冇分別嘅就係入光律。)

一） 散景嘅分別
二） 成像

- 每款鏡嘅散景都有自己嘅特色，一般嚟講越柔和越好，但都有部分人會追求D特別嘅效果，例如螺旋型，甚至donut型。靚唔靚就要自己先知，呢樣係感覺，唔係知識。

- 成像就比較易講D，因為冇幾多鏡可以全開都有良好嘅成像，機本上可以話係唔理想。


點解D人噤貴都要買支菜頭，真係有原因。

PS: 入門書籍，可以搵吓本Ansel Adams著嘅The Camera。
呢本係攝影嘅bible。

[pierokwong]

Quote:
"例如300f/2.8收到f/4，就同300f/4無分別，影像唔會靚D，真唔真？"

This is fundamentally wrong!

As a few bro mentioned previously, photo quality not only depends on Focal Length and aperture.

Different lens have different elements (Glass), this is what working behind the scene and make the difference in photo quality.

Another Quote:
"不如你問部法拉利開60個陣系咪同部的士開60個陣一樣快啦。。。"

This is fundamentally wrong as well!

Simple physic, it doesn't what brand of car you are driving, if they are going for 60km/h, they are 一樣快. Unless something wrong with the speedometer, otherwise 60km/h on a Ferrari should be the same as a Taxi.

But the riding quality is a HUGE difference. =p


I guess it is fine with newbie question, if the OP has the heart to ask the question, should we point the newbie to the right direction? Everyone has a starting point before, I guess you may ask someone similar question when you first started out, right?

Cheers,
Piero

[denchow]

Pigpig and Piero ching, thanks for sharing.

[snoopybee]

Yeah, riding quality of a taxi should b better. For driving experience, it's another issue :p

[yourmotherboard]

點解呢個forum咁多串人 ?

"fundamentally點解呀"
"如期系度問，不如自己買本字典查啦"

[manpo79]

我都覺依個forum 好多串人
有d人,唔肯努力去用自己能夠用到既方法去尋求答案
只係個forum 大聲問人,人地就要好客氣答佢

[pigpig2000]

<<<點解呢個forum咁多串人 ?

=====================================
咁又不至於好多寸人，亦都好多師兄無私咁盡量解答。

-----------------------------------------------------------------

我都覺依個forum 好多串人

======================================
其實討論區嘅作用就係分享，唔明就問，識嘅就答，
咁對所有人都有好處，唔使花大量時間都係老鼠拉龜。
而且樓主唔係問說明書有關嘅野都經已好比面㗎啦。 ^_^

[K粉…彥]

通常一枝鏡開到最大會有黑角

咁300 F2.8 開F4 的黑角會少過 300 F4?