Lens review
2010-01-29
Sigma 300 mm f/2.8 EX DG HSM APO
5. Chromatic aberration
Chromatic aberration is slight only near the maximum relative aperture. Unfortunately on stopping down the value of this aberration increases, becoming medium very quickly, and by f/32 it even nears the high level.
After attaching the converter the problem becomes more pronounced. The aberration is medium by f/4.0- f/8.0 and it increases to high for bigger aperture values.
