Sigma 105mm f/2.8 Macro

Focusing distance: 31cm / 12.2in
Magnification: 1.0x
Filter size: 58mm
Lens size: ø74mm x 102.9mm / ø29.1in x 40.5in
Weight: 470g / 16.6oz
Construction: 11 elements in 10 groups
Accessories: Hood, Case