The Canon 24-70 f/2.8L is a popular midrange zoom. Key features include: 77mm filter size f/2.8-22 aperture range Great value Great Midrange Zoom. Compared to the Canon 24-105 f/4L IS, the Canon 24-70 f/2.8L has a little less range and does not have image stabilization. However, it’s a full stop faster, may be sharper, and exhibits less distortion, especially at the wide end.description