In the lenses whose focal lengths start at 17-18 mm and end at 50-55 mm distortion bothers us the most at the shortest aperture, where we usually have a noticeable barrel of about 3-4%. Sigma performs well compared to its rivals, as at 18 mm its distortion amounts to -2.98%, which is one of the smallest results in the class. Quite properly corrected distortion at the widest angle took its toll at longer focal lengths. In a typical equipment of this class, when extending the focal length, distortion becomes smaller in a fast way and it’s often on a level much lower than 1%. Sigma at 30 mm reaches the level 1.12% and at 50 mm 0.99%. Although results these aren’t really bothering, you’d want slightly smaller ones.
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.
