Tamron SP 17-50mm f/2,8 XR Di II VC

Tamron just announced a e new lens:

Mount: Nikon, Canon
Length: 26-78 mm (eq. 24x36)
Angle of view: 78 ° 45'-31 ° 11 '
Construction: 19 elements, 14 groups, 2 lenses LD (Low Dispersion)
Openings maximum / minimum: f / 2.8 to 32
Stabilizer: Yes, VC
Minimum Distance Focus: 0.29 cm
Maximum reproduction ratio: 1:4,8
Nb. of diaphragm blades: 7
Attachment size filter: 72 mm
Diameter x length / weight: 94.5 x 79.6 mm / 570 g

Via Focus-numerique