Photographers mainly use multiple lenses to produce different photo results with 35-millimeter film and digital SLR cameras. This requires frequent lens swapping while shooting photos. Replacing a camera lens on your camera tends to be a fairly easy task if you follow the instructions for your particular camera. Following the correct steps will not only protect your camera, but it will also ensure you don’t get foreign particles inside your expensive lenses.
Locate your replacement lens and remove the rear cap. Make sure not to get any particles inside the lens or to touch the glass. Put the replacement lens either on a table or have it ready to pull out of your camera bag.
Place your camera on a table or have it strapped around your neck. Hold the camera by the body. Locate the trigger on the side of the lens connected to the camera body. Release the lens lock in the camera body by pressing the lock button. Twist the lens clockwise until it releases from the camera body. Put the lens on the table or in your camera bag, and insert the replacement lens into the camera body. Turn it counterclockwise until it locks into place.
Take the lens you removed and place the front lens cap if missing. Place the rear lens cap from the replacement lens on the back of the removed lens. Put the removed lens in your camera bag, in a lens case or in safe location in your office or home. Make sure it doesn't sit were it can be knocked over or dropped.
Test your replacement lens by turning on the camera and focusing on an object. Make sure the replacement lens responds to the auto-focus direction when you click once on your camera trigger button. Take photos as desired.