Tamron 1.4x SP AF Pro Teleconverter for Nikon AF-I, AF-D & AF-S - for Telephoto Lenses 90mm & Longer with Maximum Apertures of f/2.8 or Larger - Wide & Tele Converters -
Tamron G2 150-600-1200 zoom for Nikon Z via FTZ Adapter + Tamron 2X Tele Converter - Test shoot - YouTube