This is a set of the AF-S NIKKOR 70-200mm f/2.8G ED VR II lens and the 2x teleconverter AI AF-S TELECONVERTER TC-20E II. This is the ultimate set for sports day events, indoor presentations, and sports photography. I was using it with a Z6 + FTZ adapter because I couldn't afford the z70-200mm, but it's a truly outstanding professional telephoto zoom lens. The image quality, AF speed, and texture are superb. I am selling it because I have switched to a prime lens-focused style. Lens: There is some dust inside, but it does not affect the images and I consider it within the normal range of use. There is no mold or haze. AF, image stabilization, and aperture are all functioning correctly. The tripod collar is a third-party replacement as the original was lost. Teleconverter: This changes the 70-200mm to a 140-400mm equivalent focal length. It has only been used at sports day events, so it's in great condition. I don't think there is any dust. Of course, the AF works. I will strive for a smooth transaction. Thank you. - Brand: Nikon - Mount Type: Nikon F mount - Included Accessories: Lens hood, front and rear lens caps, 2x teleconverter Thank you for looking.