Power on confirmation Shutter Lens extension and retraction Aperture blade opening and closing LCD display in the viewfinder The above have been confirmed. There is dust on the lens, but I don't think there is any mold. ※ Please note that this is a used item, and I do not have the specialized knowledge of a camera store, so there may be oversights. Please assume that anything not mentioned has not been checked. I cannot provide support or warranty for any changes in condition or malfunctions after receipt. Please only purchase if you can accept this. Returns are not accepted as this is a used item.