Thank you for viewing. There were no options available, so it's listed as SA mount, but it is L mount. I haven't used it much, so I think the condition is good. No operational problems. There are no visible dust particles, scratches, fungus, or fogging on the lens surface. Thank you for your consideration. The Panasonic 18-40mm F4.5-6.3 lens is a high-performance zoom lens that covers from wide-angle to standard focal lengths. - Model Name: S-R1840 - Focal Length: 18-40mm - Aperture: F4.5-6.3 - Brand: Panasonic - Accessories: Instruction manual - Condition: Unused Thank you for viewing.