nthomas wrote:
這理論是哪裡來的.....(恕刪)
可參考底下連結,FF鏡放在APS-C上,有改善周邊暗角,周邊變形的好處,
但銳利度會下降,
http://www.dxomark.com/index.php/Lenses/Compare-Camera-Lenses/Compare-lenses/(lens1)/1056/(lens2)/1056/(lens3)/293/(brand1)/Sigma/(camera1)/0/(brand2)/Sigma/(camera2)/619/(brand3)/Sigma/(camera3)/619