This is the LUMIX H-X025 Leica DG Summilux 25mm f/1.4 lens. I've used it about 2 or 3 times. ・Finally: Please purchase only if you understand that this is a used item. Feel free to ask for more photos or ask any questions. (I'm not very knowledgeable about cameras, so I may not be able to answer some questions. I apologize for that.) Thank you for viewing.