[mitsui8888]

HIHI 我是一位攝影的新手 很多簡單的東西也不知^^" 所以在些希望可以請各前輩 師兄 能幫解答一下
其他新手也可一起学習 THX THX CC


什麼是 恆定光圈?

[iso_ray]

有夠醒!! 好野, 諗到開依種主題, 祝mitsui8888兄越映愈靚~~


什麼是 恆定光圈?
---------------------------

恆定光圈是指<鏡頭>在任何其擁有之焦距下都能使用同一最大光圈值, 例如canon70-200mm F2.8 / nikon70-200mm F2.8, 兩者都可以在任何情況/焦段下使用最大之2.8光圈, 用以取得較高速之快門, 或製作出淺景深之效果,

當然, 你亦都可以在任何情況下使用其它較小參數之光圈.

[tam_dominic]

iso_ray 答得很完整了

[iso_ray]

頂一吓先, 咁好既TOPIC應該長用, 方便大家増進資識; 唔使成日四維搵餐飽.

[maximilianyuen]

ya thanks for opening this post for me :)

want to ask in what situation monopod is a must?

and what to ask is it NOT good to use the largest/smallest aperture value? Do they really give worse photo quality than the middle aperture value?

how often will DSLR need to clean Dust on DSLR?
I have a 20D and WITHOUT changing any lenses the CMOS still got dust in just 1 month, after I paid $100 to Raymond yuen...make me didn't use it anymore...

[f13]

大家好我是新來的, 連相機都未有, 不過去影相都幾有興趣..
快門, 光圈.. 又係咩泥...邊度可以睇到咁基本既野等我由頭學起?
如果想買dslr,手又成日震又細力咁應該點揀好....

[maximilianyuen]

suggest you buy a DC to practice and grab the feel first...

[iso_ray]

To f13,

e510都OK輕, 有機身防震, 可以考慮.

快門, 光圈....一D都唔基本我覺得好深好難觸摸.., 上網周圍都可以搵到好多拍攝技巧知識, 慢慢睇吓, 試吓啦~~

[calvinchi]

我都有野問呀
係咪係大好天之下影相就要加曝光補償呢?
我今日影左幾張覺得暗左少少,之後用軟件加番就變番現場光!
今日d相係中午1點幾時影,相信應該係頭頂光,但我之前聽講係背光先要加之喎,乜唔係咁咩?.?

[pongyee]

>> what situation monopod is a must?

when tripod is a must but u are not allow to use a tripod.

>> is it NOT good to use the largest/smallest aperture value? Do they really give worse photo quality than the middle aperture value?

they may not produce the best photo quality, but they are not made for nothing, there r circumstances when u must use them.

>> how often will DSLR need to clean Dust?

when it makes u mad.

all answers r suggestion only.

[pongyee]

>> 快門, 光圈.. 又係咩泥...邊度可以睇到咁基本既野等我由頭學起?

可以先看書，買或借(圖書館)均可。

[pongyee]

>> 今日d相係中午1點幾時影,相信應該係頭頂光,但我之前聽講係背光先要加之喎,乜唔係咁咩?.?

呢 d 就係你o既經驗，係相同環境之下你會再用；

下次拍攝時用多d 光圈快門o既組合，加燈唔加燈都試下。

[maximilianyuen]

thx pongyee :)

>>>>今日d相係中午1點幾時影,相信應該係頭頂光,但我之前聽講係背光先要加之喎,乜唔係咁咩?.?

where you aim your camera when you half-press the shutter button matter a lot too