全文連結

目前是使用Canon系統 FF/APSC的測試, 獲選為Editor's Choice

好與壞的總結
Pros:
solid and stylish casing,
sensational image quality in the frame centre,
brilliant image quality on the edge of the APS-C sensor,
fantastic image quality on the edge of full frame,
lack of problems with longitudinal chromatic aberration,
slight lateral chromatic aberration,
imperceptible distortion,
excellent coma correction,
slight astigmatism,
low vignetting on the APS-C/DX sensor,
pleasant blurry areas,
silent autofocus,
rich accessory kit.

Cons:
noticeable vignetting at the maximum relative aperture and on full frame,
big physical dimensions and significant weight.

內文的一些重點: ART 系列一貫的高銳利度, CA不差, 低形變, 彗星像差表現不錯, 暗角意外明顯(尤其是這麼大個頭), 耀光鬼影難免但還算不錯, 對焦速度比預期慢(測試者說本來預期快一倍), 對焦精度高.
^^A 請多多指教~