Nikon Ai AF-S TC-14E II / Teleconverter / Nikon F Product Description ■ About the product This is an attachment lens that extends the focal length of the main lens by 1.4x when attached between AF-S and AF-I lenses. It has good optical performance and allows you to take full advantage of the main lens's performance, resulting in excellent image quality. It also supports various signal transmissions from the main lens. *The f-number becomes one stop darker. ■ Condition of the product There are no noticeable scratches or scuffs, and it is in good condition. All functions work without any problems, so you can use it with confidence. ■ Included items None