Re: [情報] EM1的韌體更新

作者: pickuup (plaza)   2014-08-16 10:08:30
※ 引述《PlayStation3 (超級喜歡于小文)》之銘言:
: 43R通篇在討論錄影的事情
: Firmware update:
: 4K Recording (IS compatible)
: High Speed and Slow motion Mode (240p or 120p)
: New Codec with different recording mode (24p,25p,30p,60p)
: Motion Film (I don’t know what it is exactly but it has something to do with
: a freeze picture functionality and choose to move what you want on the
: picture).
: They didn’t confirm all yet but about a similar S-log mode than the Sony one
: but they didn’t talk about it and how it would help grading for the cinema
: industry.
: And others stuff that i didn’t have time to check yet.
: I saw the 4K 24p and 30p mode, they was also other 4K mode but it was already
: the end of the Beta test. For sure this new update firmware doesn’t add
: anything, Olympus confirm 2 times that it was already there but not ready to
: be release because they needed to fix few issues. They add also new
: functionality for the pictures mode but i was not interested, only the video
: part. It’s possible that they release the new firmware by the end of this
: month
S-log是增加錄影寬容度的方法
用比較特別的gamma曲線來記錄更多的亮暗部細節
目前單眼具有這項功能的僅有 A7s跟GH4
一般來說,使用log模式拍攝可以得到至少10檔以上的寬容度
GH4的10檔是最少的
附帶ㄧ提5D3影片的寬容度大概只有8,9檔
專業的電影機的賣點就是log模式
這也是一般產品線涉及電影機的廠商不願意下放log模式到旗下單眼產品的理由
這次A7s搭載sony在高級機種才會有的s-log2,也是A7s的熱賣的原因之一
但用這種高寬容度模式拍出來的東西對業餘玩家的意義有限
因為拍出來的畫面是非常灰的,必定要靠後期提高對比
令外,以Sony A7s為例,使用log模式時 iso會被限制在1600,這對不習慣用減光鏡錄影的玩家是不切實際的
作者: lafu (Old habits die hard)   2014-08-16 10:19:00
推一個 不過a7s限制1600的點在於?
作者: sat800g (IN)   2014-08-16 10:23:00
是沒打完嗎XDD
作者: PlayStation3 (超級喜歡于小文)   2014-08-16 10:53:00
了解!
作者: NewTypeNeo (北大三國哥)   2014-08-16 13:09:00
老闆突然回來?
作者: blasy (乳舌●文藝哥●)   2014-08-16 13:27:00
攝影機每台都有自己最大寬容度的最佳iso值 A7s在1600
作者: pussycat2009 (我不是女的)   2014-08-16 18:08:00
影片調色真的是門學問...話說回來不調也真的很無趣有興趣的可以去玩Speedgrade或Davinci, 使用簡單的就玩ColorDirector http://goo.gl/2lDT2q

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