LensTip.com

Lens review

Canon EF 70-200 mm f/2.8L IS II USM

3 November 2010
Arkadiusz Olech

7. Coma and astigmatism



Please Support Us

If you enjoy our reviews and articles, and you want us to continue our work please, support our website by donating through PayPal. The funds are going to be used for paying our editorial team, renting servers, and equipping our testing studio; only that way we will be able to continue providing you interesting content for free.

- - - - - - - - - - - - - - - - - advertisement - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

The new Canon 70-200 mm f/2.8 IS corrects the coma very well. Even in the very corner of the full frame sensor in the whole focal range and after attaching the converter, the image of the diode remains almost not deformed at all. Another big plus for the Canon.

Canon EF 70-200 mm f/2.8L IS II USM - Coma and astigmatism

When it comes to the astigmatism, the lens’s performance is also beyond reproach. The average difference between the vertical and horizontal MTF50 values amounted to 4.8% which is a very good result. The astigmatism increases a bit after attaching the converter to the lens as its value amounts to 8%, but still it is a result you really don’t have to bother yourself with.