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低畫素=高ISO可用?

Aug 11th 2014, 14:24

A7S的樓主，不好意思，借一下你的圖放在我的FLICKR，如果侵權請告知，小弟會將FLICKR圖片下架
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剛才看到一篇分享文 [A7s] 室內高ISO拍小孩,膚色也表現不錯~

很好奇的點了樓主的A7S-ISO-12800的圖片

很好奇的用5D3拍了3張JPG直出-ISO-12800的圖片(機身雜訊處理-關、低、中)

很好奇的把我拍的3張圖片都縮成跟A7S一樣的尺寸 (尺寸一樣的話，畫素應該也一樣吧??)
A7S尺寸 4240*2832
5D3尺寸 4263*2842

很好奇的把4張圖片都100%檢示

比較 - 複製 by oooo_wish_oooo, on Flickr

這裡有所有原圖
https://www.flickr.com/photos/100461560@N08/

很好奇的發現... 2年前的5D3雜訊表現竟然可以跟新機A7S並駕齊驅...??
5D3的雜訊處理甚至有過之而無不及...

我的想法是...在意高ISO表現...縮圖就好了吧? 何必買低畫素相機?
高畫素可以縮圖，但低畫素卻不能輸出大圖吧...??

另外...
A7S人稱高ISO之王，那5D3可以稱高ISO之霸嗎...?

還有...
我覺得同尺寸+同ISO+100%檢視，SONY與CANON的雜訊呈現的方式不一樣
CANON是種很粗的顆粒感，但SONY卻有種潰爛的感覺

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