[Galantvrm]

聽你咁講睇黎都係儲錢直上1dx算囉！
反正我個潛水Housing都未必有得換kit轉用mk3買果個加埋部機都夠錢買1仔！

[MCCU]

唔係呀

1系焦下放5D3

SEE DCFEVER TEST REPORT LA
with photo show cross area

[step1]

1DX都有佢的問題,唯一的一點F8對焦冇左(F5.6的鏡+1.4X已經F8)
NIKON的D800,好似有十字對焦點的點都有F8對焦.

[Galantvrm]

一屋都係L鏡想轉會都難啦！

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CANON的錯在於"非不能也,是不為也"

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其實我諗如果1DX的規格改成咁, 大家會更加開心:
2800萬相素,每秒9.5張
對焦系統不變
所有雙十字對焦點都支持F8對焦.
ISO以3200可用即可

[Galantvrm]

可能有日佢會出個咁既韌體過你更新呢XDDDD
今晚大家早D訓:p

[Thomas123456]

ISO以3200可用即可
_____________________

咁我又覺得勁ISO+IQ 可活化好多鏡，及加多好多影相種類。應該幾爽。

[francisgamer]

景深除左光圈,焦距之外, 仲有主體距離都有影響.

FF如果用100mm影一個主體, APS-C都係用100mm影同一個主體(在構圖上大小一粄的話), 相機會後好多.

相比之下, FF近D, 個景深咪淺D囉.

[Thomas123456]

"活化好多鏡"，我意思係如可用4/5.6鏡或以上去影室內高速運動... 或者任何已前比光線限制咗的影相種類。

[snoopycc]

Let me try to explain what is field of depth (FOD). Please correct me if I am wrong.

FOD can be defined as the range of distance that the objects are acceptablely sharp.

FOD is affected by following factors

1. The distance between the subject (focus point) and the object (for example background).

For example, the longer the distance between the subject and the background, the narrower the FOD (blur background). Vice versa the shorter the distance between the subject and the background, the deeper the FOD (sharp background).


2. The distance between the subject and the camera

For example, assume the distance between the subject (focus point) and the background object is fixed as well as other setting are the same e.g. aperture, then the shorter the distance between the subject (focus point) and the camera, the narrower the FOD (blur background). Vice versa the longer the distance between the subject and the camera, the deeper the FOD (sharp background).

Taking macro photo is a very good example. The closer the lens towards the insect, the narrower (thinner) the FOD.


3. The focal length of the lens

For example, the wider the focal lenght, the deeper the FOD and vice versa.

4. The aperture of the lens
For example, the wider the aperture, the narrower the FOD and vice versa.

Taking macro photo as an example. As I explained at point 2, the closer the lens towards the insect, the narrower (thinner) the FOD. For example, if the aperture is f2.8, the FOD would be about 1 paper thin. In this case the insert's front eye is sharp but the another one is blur (assume both eyes are not in the same focal plane). To solve this problem, you have to stop down the aperture to F11 in order to get both eyes sharp.

You can search more information about FOD in Google.

[explorer_sky]

我只有5D1，已好足夠用了！

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今日終於得閒攞部5D3試下機啦!POST D 試機相先

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新機5D3+50MM,全部自然光,室內由得ISO自己跳,此機係一部屋企用高級DC仔....HAHHA

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ＩＳＯ２５００現場光，細節依然保留很好！