SD Quattro III: The Sigma 50-100 f1.8 A on the camera it was designed for. (Not Sigma Male Grindset)
7:11
【写真】SIGMA sd Quattro Hで撮影した写真①（Photographs taken at SIGMA sd Quattro H）
9:22
Sigma 50-100 f/1.8 Review: Full-frame Results on APS-C Cameras (but with problems)
8:21
Trying Sigma's Best Foveon Camera Yet
18:14
Sigma sd Quattro Part 2: Is it right for you? My thoughts of the camera after four years of use!
5:49
Sigma 50-100mm F1.8 ART Lens Preview: Is it worth $1,099?
7:39
Con esta cámara hago las cosas de forma diferente.
5:23
Sigma 50-100 or 70-200 for video?
15:17