[情報] A7RII轉接Canon EF鏡的自動對焦速度
A7RII + Viltrox + Tamron 15-30mm f/2.8:
https://youtu.be/qW36e_icsic
對照組
A7R + Metabone + Canon EF 20mm f/2.8
https://youtu.be/4XGcv2dSBZk
早在Sony準備將全幅系統轉移到E環基礎上時,內部即已爭論過法蘭距和畫質的取捨;最
後?
因此,「轉接鏡頭」從E環全幅機誕生伊始,即是其系統發展的考量之一。
現在Sony不單只滿足於轉接的泛用性,它更開始強化轉接後的實用性。這次A7RII的賣點
之?
Sony從接手Minolta迄今,大部分都主打「相機高C/P值、鏡頭高單價」的路線;而Canon
擁?
若Sony能持續加強轉接鏡的對焦性能,不但能讓Sony用戶受惠,Canon用戶也可選擇擁有
各?
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就Sony官方立場而言,這個說法確實不適當,應該修正。非常感謝。
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有。這裡有A7RII + Canon 24-105mm f/4 L的動態追焦測試影片:
https://instagram.com/p/3xJAJskSJ0/?taken-by=phoblographer
相機螢幕左下角的綠燈代表對焦中。
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目前相關測試影片還不多,有相關消息會立刻分享。
另外,關於轉接A鏡的速度,
Gordon Laing測試A環的16-35mm f/2.8及500mm f/4後表示:
(1)A7RII + LA-EA3 + A鏡,速度僅略遜原生鏡一點,但仍非常快,且臉部偵測等相關功
能?
(2)A7RII + LA-EA4 + A鏡,速度比LA-EA3略快,但只能用轉接環內建的15個對焦點,遠
不?
對照組是A7R + LA-EA3 + SAL50mm f/1.4 SSM的速度:https://youtu.be/tV9ACB_NF0g
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根據他的描述,或許其意思是:雖然速度來說,原生鏡 > LA-EA4 > LA-EA3,但三者的速
度
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對照A7R一代和二代轉接EF鏡的AF速度差距。雖然鏡頭不同,但A7R透過自動環轉接EF鏡,
不
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正在期待使用它牌自動轉接環的測試報告。
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感謝指正,確實是唯卓的轉接環,已修正。這樣看來,任何支援自動對焦的轉接環都能使
用相位對焦,而不限於昂貴的Metabone了?
※ 編輯: splendidpoem (114.32.71.150), 06/17/2015 00:42:45
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