Here is some additional information on the new Tamron 70-300mm f/4.5-6.3 Di III RXD mirrorless lens for Nikon Z-mount from the B&H Photo product listings: Tamron 70-300mm f/4.5-6.3 Di III RXD mirrorless lens key features: Z-Mount Lens/Full-Frame Format Aperture Range: f/4.5 to f/22 Low Dispersion Front Element BBAR Broad-Brand Anti-Reflection Coating Moisture-Resistant Construction Rounded 7-Blade … Continue reading Tamron 70-300mm f/4.5-6.3 Di III RXD mirrorless lens for Nikon Z-mount additional information