[crazybean]

同一支50MM鏡, 插去FF 同就插去APS-C, 只可說是用盡支鏡既廣角, 是否用盡晒成支鏡既功力, 則見仁見智, FF機有時都暴露咗支鏡的弱點

舉個例子, 如果要影同一大小的物件, APS-C機要比FF機行後一段距離, 但由於APS-C機只用鏡頭中央1.6x crop factor 部份, 在夠光情況下和使用低ISO, APS-C機影出來的相, 邊位會比FF機更清

[rankinelo]

crazybean CHing,

Agree. 其實部機個sensor愈大, 愈多使用時要注意的地方.

唔記得之前哪個CHing講過, 機愈大, 愈會放大使用者的攝影技術, 其實個人覺得都幾啱.

下下淺景深睇落係幾靚既, 但係用起上來, 真係想做一些心中想影的, 卻並不是那麼容易, 避開器材既短處, 用盡機身的長處, 還真是要向各FF的CHing, 多加學習才行.

[叮噹仔]

Re: crazybean

我覺得你咁講, 有少少呃自己吧~

又或者套用你指出既問題, 用FF影左張相, 再chop走邊位,
咁樣比較會唔會FF較好呢?

[crazybean]

都係喎... FF 可以crop 相

我上FF後, 其實覺得景深太淺多過覺得部機畫質無突破

可能我影細小物件和小朋友多, 想有足夠景深, 經常要收到 f5.6 以後

>>> rankinelo Ching,
記得好耐之前, 喺其他post同你傾過好唔好買5DII, 還是繼續等, 結果大家都買咗, 哈哈...

[siusiusiusun]

FF 會用盡成支鏡, 包括支鏡既特性同缺點. 但同一支鏡用落FF 及APS-C, 就算只比中間, FF 既解像度都係一般高過APS-C

論DOF, FF 會淺過APS-C. 變相影相時更需要識得適當去縮光圈去調整埋景深

再加上5D2 好多人包括我只用中間一點黎對焦, 又要用返以前舊有一套對焦後平移構圖, 或有時需要前後移去就添.

我都KEEP住用架5D2同40D. 對焦上5D2 真係雞D, 但畫質, 原鏡頭視角, DOF 表現都係APS-C 無得比...

[rankinelo]

crazybean CHing,
都是很久前的事了, 現在5DII都已經相當平, 個人覺得已經係好抵玩既時候

siusiusiusun CHing,
>>同一支鏡用落FF 及APS-C, 就算只比中間, FF 既解像度都係一般高過APS-C
我很久以前都問過這個問題. 以前其他CHing既答案都一樣, 現在到了自己的手上, 都覺得這個結論係正確的, 5DII係每一粒既pixel都係好實在, 21MP 只crop 4MP的話, 那4MP也沒有crop相的感覺

[zerochun]

400D既對焦同5D2係差唔多~因為我係400D升上黎~但可以絕對值得升級`無論高低ISO同顏色~但係相對每張相都大1倍~

[t502kg]

各位師兄，有樣嘢我成日都唔係好明，如果我set 5d2的resolution去18MP, 咁樣張相嘅解像度梗係下降啦，但係張相嘅質素會唔會好咗呢？？

[look_yau]

no not really

[t502kg]

Thanks look, so what does really matter to do with the pixel density?

[viovanda]

我覺得根本好多野係canon先知,如果大家一樣係1800 pixel , CCD 用枓設計–樣,點解貴機靚過入門機??? 我覺得係programme 問題.....

[wllui]

點解貴機靚過入門機:
作為一般市民的你, 會以COST來定價
作為商人的他(CANON), 會以COST+你的CONSUMER SURPLUS來定價

[t502kg]

**作為商人的他(CANON), 會以COST+你的CONSUMER SURPLUS來定價**

Consumer Surplus are governed by our demand of that DSLR, our demand is governed by the money in our pocket and the set price of that product, sometimes price can be affected by Producer Surplus as well, given that there is an excess supply and equilibrium is newly defined in the market.

** 如果大家一樣係1800 pixel , CCD 用枓設計–樣,點解貴機靚過入門機???**
I think it is because the 1D series (1DS III) has more advanced function eg. focusing system in the camera body, 5DII is a good camera, but the focusing system is.......not good. Market position in terms of technology also affects the set price in the market, after all, Canon has invested a hugh R&D cost in the 1Ds markIII project.

My question is actually asking the "Pixel density", how comes we lower the mp used for the CCD, the pixel density is supposed to decrease, right? So will quality go "up"?

[look_yau]

>>>如果我set 5d2的resolution去18MP,

please read carefully what the question was

[t502kg]

Yup, this was the first question, sorry for confusing! So any clue or idea? Just for discussion. ^^