[cyj]

Sigma 150-500mm F5-6.3 DG OS HSM vs Canon EF 100-400mm f/4.5, which one do you prefer? I want to take pics of birds. Thanks!!

[Obi-Wan]

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=683&Camera=453&Sample=0&FLI=4&API=0&LensComp=113&CameraComp=453&SampleComp=0&FLIComp=7&APIComp=1

[cyj]

Thank you ching!! Good info link!

[hotfire009]

我都用過SIGMA 150-500, CANON 456, CANON SSW IS, CANON 328, 發覺副廠tele鏡完全同原廠鏡無得fight, 原廠鏡係貴得值得.

[cyj]

Thank you ching, I guess I shall consider paying more and buy Canon lens...