Cheap at half the price, the Tamron 17-28mm f/2.8 Di III RXD ultra-wide zoom with a wide f/2.8 constant aperture goes up against the likes of Sony’s G Master 16-35mm. It’s smaller, more lightweight, and beautifully balanced on an A7 or A9 camera body.
• Superb optical performance; • Fast and constant f/2.8 aperture; • Good weather-sealed build quality
• No optical stabilizer; • Narrower maximum viewing angle than a 16-35mm; • Less overall zoom range than a 16-35mm