Shutter Lens extension and retraction Aperture blade operation The above have been confirmed. I don't think there is any mold on the lens. The mirror stays up at shutter speeds 1 and 2. It returns when set to other speed dials. Please consider this assuming maintenance is required. ※ Please note that this is a used item, and I do not possess the specialized knowledge of a camera store. 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 purchase only if you can accept this. Returns are not accepted as this is a used item.