[lmichael]

其實現在的DSLR都係sensor, 同DC一樣, 點解唔可以有電子快門的功能? 即係全開sensor, 唔用機械快門, 只用電去switch on/off個sensor, 咁樣

1. 可以大大增加快門的速度.
2. 2. 而且亦可以解決同步快門限制呢個問題.

其實dc都係咁O既原理.

[Ref54]

Hi Ching, maybe I'm wrong (since I'm not specialized in electronics) but I just thought / guess they can't apply this under DSLR (esp. FF model) as there might be overheat / electricity consumption issues.

[Ref54]

The Micro4/3 system has already changed the viewfinder into electronic, maybe they could change shutter into electronic someday.

[MN56]

電子快門會增加Noise。

[h0001244]

Panansonic has Lumix DMC-G1, seems like the thing you mentioned.

Reflex Lens - image through lens to your eye.

Sensor - image throught sensor convert to LCD and then to your eye.

The pros of that reflex lens is you can see the live image through the lens to your eye directly without delay without limitation on sensor such as dark environment.
The pros of sensor is that you can see the image exactly same as what you will take.

(correct me if I am wrong)

[uubb]

好高興這裡還有一些對電子有認識的人
唔係盲目既消費者一味睇樣睇價錢"斷估"
很好很好......

[william_lau]

其實你所講的，macro 4/3係咪已經做左？ 不過已經唔算係單反了。

[Ref54]

>>其實你所講的，macro 4/3係咪已經做左？ 不過已經唔算係單反了。

Hi Ching, I'm also wondering if electronic viewfinder = electronic shutter
http://www.dpreview.com/reviews/panasonicdmcg1/page5.asp

[lmichael]

可能有點深, 但係其實大家首先要明白什麼是機械快門, 什麼是電子快門先.

機械快門, 現在通常都係用簾式, 有個學名, 我都唔記得o左.
電子快門, 其實只係個sensor通電不通電.

如果明白簾式的原理, 就明白點解單反會有個閃燈同步快門, 限制住唔可以用閃燈快過同步快門, 就會明我想講什麼.

呢個都同VF有少少關, 但係好多辦法解決.