This is a set of the SONY FE 200-600mm F5.6-6.3 G OSS lens and the genuine 1.4x teleconverter SEL14TC. As a bonus, I will include the lens protector I was using and a soft case for carrying. I purchased both items new about 3 years ago and have used them about once every two weeks. I always used a lens protector and stored them in a dehumidified storage box, so the optics are in beautiful condition with no fogging or mold. However, there may be some dust particles that do not affect the image quality. Also, there are some scratches on the exterior due to use. There are no problems with autofocus or image stabilization. There is no history of dropping the lens. The teleconverter also comes with a case. I am selling these because I am changing my camera mount. Please understand that these are used items and may have scratches on the exterior.