Thank you for viewing! Please read the profile first. This product offers a 100 yen discount for followers. This is a 2x teleconverter for Nikon F-mount manual lenses. It is used to double the focal length when attached to a lens. For example, a 200mm lens instantly becomes a 400mm lens. It will also become darker. This teleconverter does not support autofocus. Please use it manually. No mold or clouding. It's clean. The manufacturer's name is not listed, so the manufacturer of this product is unknown. I will sell it to those who use Nikon F-mount. Operation has been confirmed on a Nikon FE. (Please check the images for the condition as they are taken to be as clear as possible) 【Product Number】 5812174 Please refrain from bidding if you are looking for a perfect item. Please understand that this is an old item. I take great care in repairing and cleaning used items, but if there is a "unusable level" defect, please contact me before giving a rating. I will take care of it. Instant purchase OK. Please use it with affection for a long time. I have various other items for sale, so please take a look. #NikonFmount #Teleconverter #TELEPLUS