A telephoto zoom so compact you will want to carry it around everyday
Tamron has adopted a dedicated design for mirrorless cameras and
achieved a compact size once again by fixing the aperture at F6.3 at the
telephoto end. The maximum diameter is 77mm. Measuring just 5.8 in. and
weighing a mere 19.2 oz., this 70-300mm F4.5-6.3 is the world's
smallest and lightest telephoto zoom lens for full-frame mirrorless
cameras. Compatible with Sony's popular E-mount cameras, it has been
developed with the concept of enabling photographers to experience the
universe of full-scale, full-frame 300mm telephoto photography more
easily.