8-25mm wide angle zoom (16-50mm in FF terms)
16 elements in 10 groups including 1 DSA, 1 Aspherical ED, 1 Super ED, 1 ED, 1 Super HD, 1 HR and 1 HD element
close focus 23cm giving 0.42x macro at 25mm (0.14x at 8mm)
72mm filter
7 rounded aperture blades
IPX1 water rated
front element includes a fluorine coating for easier cleaning
retracting zoom mechanism - need to twist the barrel to extend it for use
supports focus stacking on compatible Olympus bodies
MF clutch
lens function button
77 x 88.5mm
411g
$US1099