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近日收到不少網友意見,指 DCFever.com「吹水閒聊」充斥愈來愈多粗言穢語、人身攻擊、誹謗等不理性討論。作為 一個以攝影興趣為主題的網站,此等漫罵式討論已超出 DCFever.com 設立討論區之原意。DCFever.com 呼籲大家以 攝影交流為目的作理性討論,並正密切留意事態的發展。
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kcfong_2004




註冊: 2004-06-20

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題目有冇人用Sanyo Xacti VPC-J4……??     Post time: 6 月 23 日

嗯…我看中了Sanyo Xacti VPC-J4…
但又不知道到底好不好用……
同埋抵唔抵買……

各位高手可唔可以俾d意見我喔?
我係新手黎架咋……
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M1A1




註冊: 2003-11-12

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題目Re: 有冇人用Sanyo Xacti VPC-J4……??     Post time: 6 月 24 日

我有J1,3m pixels,開機快,對焦速度都算係咁,shutter lag小。存相睇相都快,Playback可放大到45倍咁誇,影得好唔好可以即時知道,good!加上拍到640x480@30fps,短片拍得住DV,隨身袋,snapshot一流。

J4有4m的pixels,mpeg4短片(壓縮比例高,但質素唔及motion jpeg),其餘和J1J2分別唔大!
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dcnut




註冊: 2003-05-27

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題目Re: 有冇人用Sanyo Xacti VPC-J4……??     Post time: 6 月 24 日

As I know J4 also use motion Jpeg, not Mpeg4.

I have an interesting comparison on Mpeg4 and Motion Jpeg:
I have downloaded a video from a website. They provide 2 versions: One is 320X240 Motion Jpeg and the other is 640X480 Mpeg4. The file sizes are about the same. It seems that the Mpeg4 wins as the resolution is 640X480 in a similar file size, but in fact, when you enlarge the 320X240 motion Jpeg to the size of 640X480, you will get a very similar picture quality.
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dcnut




註冊: 2003-05-27

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題目Re: 有冇人用Sanyo Xacti VPC-J4……??     Post time: 6 月 24 日

As I know J4 also use motion Jpeg, not Mpeg4.

I have an interesting comparison on Mpeg4 and Motion Jpeg:
I have downloaded a video from a website. They provide 2 versions: One is 320X240 Motion Jpeg and the other is 640X480 Mpeg4. The file sizes are about the same. It seems that the Mpeg4 wins as the resolution is 640X480 in a similar file size, but in fact, when you enlarge the 320X240 motion Jpeg to the size of 640X480, you will get a very similar picture quality.
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M1A1




註冊: 2003-11-12

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題目Re: 有冇人用Sanyo Xacti VPC-J4……??     Post time: 6 月 24 日

Thanks for the correction! Maybe I get confused of the 770!
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