Handle the camera with care and keep the camera clean.
Do not remove the lens unnecessarily as this may result in dirt and dust getting into the camera.
Clean the camera regularly. Remove the dust from its external and internal surfaces with a soft brush or blow off the dust with the aid of a rubber bulb. Thoroughly protect the optical components from getting dusty or dirty , try to avoid touching the glass elements with fingers. Protect the camera shutter curtains from mechanical damage as they are made of very thin material.
Store the camera in a suitable case with the lens closed with it's cap.
If bringing the camera in from frosty weather into a warm house , do not open it immediately , let it become gradually warmed up in the case for about 2 or 3 hours.