Tamron’s lineup of three large aperture zoom lenses for full-frame mirrorless cameras With the addition of this telephoto zoom to the lineup of light-weight, high performance lenses, Tamron has completed its assortment of three F/2.8 large aperture zoom lenses for Sony E-mount full-frame mirrorless. The other two models are the 17-28mm F/2.8 Di III RXD (Model A046) ultra-wide zoom, and the 28-75mm F/2.8 Di III RXD (Model A036) standard zoom. The greatest feature of the series is the excellent portability. Combined, the three lenses are unbelievably light at just 1,780g (62.8 oz), fulfilling the photographer’s dream of being able to easily carry three fast, potent zoom lenses at the same time.