$11 Super Wide Angle Digital Camera

Step 2 Take some pictures!

Remove the threaded backing from the Door Viewer, hold it directly on the lens of the camera, zoom all the way in, and start taking some pictures! Some cameras may have a bit of trouble focusing, so if your camera has a center-weighted mode, turn that on to force it to meter and focus on the center of the image. It also seems like using the "macro" mode helps focusing as well, since you usually need to get really close for the best wide angle effect.