Filter size 58mm. Compatible with lens hood ES-71/2 and Lens Case LP1014. Weight 290g
Focal length and maximum aperture: 50 mm 1:1.4
Lens construction: 7 elements in 6 groups
Diagonal angle of view: 46°
Focus adjustment: Overall linear extension system with USM
Closest focusing distance: 0.45m / 1.5ft