Focus on a single subject in your photographs. Pictures will work best with a single, clear point of focus. Setting up a composition that involves multiple subjects can be difficult and can result in a disorganized, cluttered frame. Having a single subject also makes setting your zoom and other settings easier.
Take successive photos of your subject if there is a chance that it might move. Certain subjects, such as wild animals, won't just wait patiently for you to take your photo. In this case, take one shot quickly so that you have something to work with. Then, if the subject hasn't moved, take more shots with better positioning and composition.
It is not as simple as ‘wide open for portraits’ and closed down for landscapes’ – give it some thought and make sure you get the best results. Get Your Gear Out!