So I'm a new owner of the 7D who purchased a used Sigma 30mm 1.4 and am through the roof with how great these pix are turning out. I recently got my hands on a used 16-35L (mark I) and am less than impressed. I wanted something wider than the 30mm so that's why I went for the 16-35 but as the review on this website points out, this lens over exposes. I've been trying to keep the indoor shots to the lowest ISO that I can, but it's turning out some less than impressive photos.


I have the possibility of getting my hands on a 24mm 1.4L (mark 1)


So my questions is:


Is the 24mm 1.4L (mark 1) that much wider than the 30mm I have?