- Put your camera on a flat surface, so that the lens is pointing straight up
- Unlock the lens on your camera body, and turn the lens just a little bit so you can let go of the lens and it remains unlocked (but it’s still resting on the camera body)
- Remove the cap on the bottom of the new lens you want on your camera
- Hold the new lens in your right hand, and twist off the lens on your camera with your left hand
- Quickly mount the new lens with your right hand and lock it onto the camera
- Put the cap on the bottom of the old lens
Sometimes autofocus can be really annoying: it’ll search and search for an object to focus on, and either never find it, or go through multiple cycles until it finally finds the right object to focus on. And by that time, you may have already missed the shot–especially if you’re photographing a quick moving subject like birds.