Lens Type	Digital SLR Lenses
Focal Length	18-35mm
Maximum Aperture	f/1.8
Aperture (Max. & Min.)	Max: f/1.8; Min: f/16
Camera Mount Type	Canon EF \| Nikon F \| SIGMA SA \| Sony A
Camera Format	APS-C
Angle of View	76.5° - 44.2°
Minimum Focus Distance	28 cm / 11.0 in
Maximum Close-Up Magnification	0.23x
Groups/Elements	12 Groups ; 17 Elements
Diaphragm Blades	9

Lens Features

Lens Physical

Filter Thread	72mm
Dimensions (DxL)	Canon EF: 78 x 121 mm / 3.1 x 4.8 in \| Nikon F: 78 x 121 mm / 3.1 x 4.8 in \| SIGMA SA: 78 x 121 mm / 3.1 x 4.8 in \| Sony A: 78 x 121 mm / 3.1 x 4.8 in
Weight	Canon EF: 810 g / 28.6 oz \| Nikon F: 810 g / 28.6 oz \| SIGMA SA: 810 g / 28.6 oz \| Sony A: 810 g / 28.6 oz