Versatile Telephoto Zoom. The Tamron 70-300mm f/4.5-6.3 Di III RXD’s telephoto zoom range makes it great for a broad range of shooting situations, including sports, portraiture, and wildlife. Using an APS-C camera? This lens will give you 105-450mm equivalent focal-length range.

Variable Aperture. The variable f/4.5-6.3 aperture isn’t useful for low-light shooting, so you’ll probably want to stick with outdoor-lighting conditions for best results. The rounded seven-blade diaphragm contributes to smooth, pleasing bokeh for shallow depth-of-field techniques.

Advanced Optical Design. The ten-group/fifteen-element optical formula includes a low-dispersion front element that gives you sharp, high-contrast images across the image plane. Each element features Tamron’s BBAR coating to combat flare and ghosting for even greater contrast in backlit and harsh lighting conditions.

Fast, Accurate Autofocus. The 70-300mm autofocuses quickly, accurately, and smoothly, making it ideal for stills and video use. It can take advantage of in-camera features like Fast Hybrid AF and Eye AF, and it also offers full-time manual-focus override for even greater precision.

Additional Features. This lens is compatible with in-camera chromatic-aberration, shading, and distortion lens-correction features. You can use this lens in inclement conditions thanks to its strong, moisture-resistant, aluminum-magnesium alloy build.