Tamron 17-28mm F2.8 Di III RXD is an Auto Focus (AF)
Wideangle Zoom lens with 35mm FF max sensor coverage and it is designed to be used with Sony E mount cameras.
Lens Mount
Tamron 17-28mm F2.8 Di III RXD is compatible with cameras that have Sony E lens mount.Some of the latest released cameras with Sony E lens mount are
Sony A7c,
Sony A7S III and
Sony A9 II.
Sensor Coverage
Max sensor coverage of Tamron 17-28mm F2.8 Di III RXD is 35mm FF.
Focal Range
Tamron 17-28mm F2.8 Di III RXD has a focal range of 17-28mm and 1.6X zoom ratio.
Aperture
Tamron 17-28mm F2.8 Di III RXD has a constant max aperture of f2.8 from 17mm all the way to the 28mm .