Sigma 55-200mm f/4-5.6

Focusing distance: 110cm / 43.3in
Magnification: 0.22x
Filter size: 55mm
Lens size: ø71.5mm x 92.5mm / ø28.1in x 36.4in
Weight: 330g / 11.6oz
Construction: 12 elements in 9 groups
Accessories: Hood

Eddie's take on it

This is an old and cheap telephoto from Sigma. There is no reason to buy it, despite the shorter zoom range, the Olympus 40-150mm f/4-5.6 lens is going to better. If you need longer zoom range, get the Olympus 70-300mm.