Using the Peak Design Capture Lens Kit is a breeze. First, make sure you have a Peak Design Capture Clip or Strap as this kit needs them to function. Attach the Lens Kit adapter to your chosen strap, belt, or backpack strap. You can then easily mount your lens to the adapter. To change lenses, just use one hand to quickly swap them out. When not in use, the kit holds your lens securely in one of the four locked positions. Remember, if you're carrying a heavier lens, you can use the PROpad (sold separately) for more comfort. As for maintenance, keep it clean by wiping it with a soft cloth. Avoid exposing it to extreme temperatures or rough handling. And always double - check the connections to ensure your lens stays safe.