It is a Canon EF mount, but I chose it because there was no other option. It is actually different. Focal length... 19-70mm Maximum aperture... ~1.4 Other features... Old lens, with front lens cap, with rear lens cap Exterior: Clean. Please check the photos. Lens surface: No mold, no fogging. No balsam separation. There are very faint scratches, but they are minor. Functionality: No problems. - Although the item is checked at the time of listing, oversights may occur. Please understand this in advance. - The evaluation of the item may vary from person to person. Please bid with the understanding that it is a used item. - The item is confirmed to be in working order at the time of listing. - This item is used. It may not satisfy those who are sensitive. Please bid with understanding. - Those who seek perfection should refrain from bidding. - The amount and presence of scratches, mold, fogging, etc., are largely subjective.