I'm just wondering if a wide angle lens could help taking pictures for real estate(rooms, property, etc.)? My mom has a point and shoot and I'm wondering if I can use a wide-angle lens to help her with that kind of stuff. Also, what good is a fisheye lens? Is it just like a wide-angle lens? Or does it cut off corners like a vignette? Last question. What should be my starting point when getting a lens? Should it be the standard 18-70mm lens??