An interesting iPhone App that I’ve used quite regularly is AutoStitch for taking panoramic photos. How it works is you stand in one spot and take a series of photos as you turn around on the spot. Each photo you take should overlap adjacent photos. The AutoStitch app then “stitches” the photos together to make a panoramic photo. I find it quite handy to take a panoramic view if you want to capture a very wide field of view in the one photo such as below. Click on each image below to see full size. If you look at each image closely you can see the ragged top and bottom where I turned on the spot without keeping the camera at the same angle. If I had a tripod this problem will go away.
Shibuya intersection in Tokyo
Art Studio at home