Saw these two shots, the leaves in sigma shot appear to me like pixelated, and very unnatural
compared to Canon. What is the phenomenon in Sigma shot called?
Sigma 18-50 F/2.8 Ex shot
http://www.photozone.de/8Reviews/lenses/sigma_1850_28/samples/IMG_3311-01.jpg
EF17-40 F/4L shot
http://www.photozone.de/8Reviews/lenses/canon_1740_4/samples/IMG_4296.JPG
compared to Canon. What is the phenomenon in Sigma shot called?
Sigma 18-50 F/2.8 Ex shot
http://www.photozone.de/8Reviews/lenses/sigma_1850_28/samples/IMG_3311-01.jpg
EF17-40 F/4L shot
http://www.photozone.de/8Reviews/lenses/canon_1740_4/samples/IMG_4296.JPG