Summary: You only need this lens if you have everything else, or you have plenty of money to spend, because there are so many other useful lenses before you need this one.
Summary: You only need this lens if you have everything else, or you have plenty of money to spend, because there are so many other useful lenses before you need this one.
Conclusion: I use the 15mm with ImageAlign from Grasshopper Software in NZ to get really wide architectural shots. The 15mm on the 10D is about the same as the 14mm on a full frame...