Lens review
2009-12-29
Canon EF 100-400 mm f/4.5-5.6 L IS USM
7. Coma and astigmatism
The coma influence on the circular diode image is minimal so, when it comes to this aberration, the Canon 100-400 mm corrects it in a definitely satisfying way.
The same situation was observed in the case of astigmatism, which value reached 4.7%.
