It says "Size α A-mount" but there are no other options, so I chose this, but it's incorrect. This is a very rare item. It is in wonderful condition. It has been used very little. Please check the photos for the condition. Optics No mold or fogging. No balsam separation. No operational issues. Although I don't think there are any, there might be minor scuffs from wiping. ・Regarding the product, I check it at the time of listing, but there may be oversights. Please understand this in advance. ・The evaluation of the product may vary from person to person. Please bid with the understanding that it is a used item. ・I confirm that the product is in working order at the time of listing. ・This product is used. I do not believe it will satisfy those who are overly sensitive. Please bid with understanding. . Please refrain from bidding if you are seeking perfection. . The amount and presence of scratches, mold, fogging, etc., are largely subjective.