The Nikon AF-S Teleconverter TC-20E III is a premium optical tool designed to double the effective focal length of select NIKKOR lenses, providing a powerful and portable solution for super-telephoto photography. Ideal for sports, wildlife, and surveillance, this teleconverter allows you to turn a 300mm lens into a 600mm powerhouse without the size, weight, or cost of a dedicated super-telephoto prime. This third-generation model features a completely redesigned optical formula, including the first-ever use of an aspherical element in a Nikon teleconverter, ensuring outstanding image sharpness, contrast, and color fidelity.
The TC-20E III seamlessly integrates with compatible AF-S and AF-I lenses, maintaining full communication between the lens and camera. This means you retain critical functions like Vibration Reduction (VR) and autofocus (with compatible f/2.8 or faster lenses). While doubling your focal length, the teleconverter reduces the lens’s maximum aperture by two stops. Built to Nikon’s professional standards, it’s a rugged and reliable way to get closer to the action and capture images you couldn’t otherwise achieve.
Technical Specifications:
- Mount: Nikon F Mount
- Format: FX / Full-Frame (DX Compatible)
- Optical Conversion Factor: 2.0x
- Light Loss: 2 F-Stops
- Optical Construction: 7 Elements in 5 Groups (1 Aspherical Element)
- Filter Thread Size: None (Utilizes the filter thread of the attached host lens)
- Dimensions & Net Weight: 66 x 46 mm (Diameter x Extension Length), 330 g



