ks_stone wrote:
拍孩子室內的表演用1...(恕刪)
很棒的分享 !
表示如果想要用Sigma/Tamron 150-600mm維持相同光圈快門的話，必須將機身ISO 拉高到5000左右
如果只是做個記錄，縮縮小圖給老師交差，7D2應該夠用
如果想要有更好的畫質，只能犧牲荷包升級到 F2.8的大鏡了或者用全幅機 ~
KY: Actually, there is not so much difference between the two lenses in terms of optical performance. Especially if you look at the center of the frame, there's not so much difference -- maybe you can't see the difference. If you look in the corner at the telephoto end, the Sport lens' lateral chromatic aberration is significantly less than in the Contemporary line, though.
小弟看完這段的感想是，儘管S版的望遠端(邊角)色散控制比較好，但光圈全開時卻有一圈好大的暗角。這樣一來，除非對於防滴防塵有特殊需求，不然應該乖乖等C版，然後去搭配APS-C機身，這樣開放光圈就有跟S版相近的畫質，而且又不用顧慮邊角失光，視角上還有全幅900mm的效果。
原文出處:
http://www.imaging-resource.com/news/2014/11/26/sigma-qa-kazuto-yamaki-micro-four-thirds-lenses-full-frame-foveon-feasible
nagasitori wrote:
SIGMA的社長在訪...(恕刪)
最近常拿這隻去拍飛機
如果用FF拍的話300mm之後暗角會很明顯
S156S比較適合配APS-C機種
我在想Sigma為何不先把定焦大砲更新呢？
相同的規格賣1/2價應該很有搞頭才對啊
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