Shutter Expansion and contraction of the bellows Opening and closing action of the internal blades The above has been confirmed. There are signs of mold or cloudiness on the lens, but the camera body itself appears to be in a clean condition without the shine of heavy use. ※ Please note that this is a used item, and I do not possess the specialized knowledge of a camera store. Therefore, there may be oversights. Please assume that anything not mentioned has not been confirmed. We cannot provide support or warranty for any changes in condition or malfunctions after receipt. Please purchase only if you can agree to this. Returns are not accepted as this is a used item.