Watch out for wide-angle distortion
Longer focal lengths aren’t just for getting frame-filling shots of skittish subjects, they also make a big difference to the perspective in an image. If there’s room to step back and zoom in to a subject, you’ll end up with more natural-looking results.
18mm When a subject is photographed up-close with a wide-angle lens, perspective is exaggerated – features that are close to the lens look much larger than those further away. Here, the steps appear much larger than they were in reality
70mm Take a few steps back and zoom in with a longer focal length to flatten the perspective. Here, the doors are the same size in the frame, but the steps and doors appear closer together and in the correct proportion