If you search long enough or troll photographic forums you will find people talking about “crop factor” and what it is etc.. but usually they only give one example. I decided to go to B&H photo’s website and grab every lens from 7mm to 18mm on the small end made for an EOS body and do the maths to show what the equivalent EF-S lens view would be using my 7D and its 1.6 crop factor. I extrapolated from 7mm and stopped at the 18-55mm EF lens to show you how different it could be. See below graphic. I will eventually add more to this post.