Comparison of Sigma 180mm ƒ/2.8 EX DG OS HSM APO Macro and Sigma 12-24mm f/4.5-5.6 II DG HSM

Attribute	Sigma 180mm ƒ/2.8 EX DG OS HSM APO Macro ×	Sigma 12-24mm f/4.5-5.6 II DG HSM ×
Filter Size (mm)	86	-
Closest Focus (m)	0.47	0.28
Magnification Ratio (x)	1	0.16
Length (mm)	203.9	120.2
Focus Details	Internal with focus limiter; HSM with full-time manual focus override	Internal; HSM with full-time manual override
Diaphragm Blades Type	rounded	-
Diagonal Angle of View (degree)	13.70	-
Image Circle	35mm	35mm
Focal Length (mm)	180.00	12.00 - 24.00
Name	Sigma 180mm ƒ/2.8 EX DG OS HSM APO Macro	Sigma 12-24mm f/4.5-5.6 II DG HSM
Brand	Sigma	Sigma
Weight (g)	1.64	-
Type	Telephoto Prime Macro	Wide Zoom
Lens Construction	19 elements in 14 groups, including 3 FLD ("F" Low Dispersion) glass elements	17 elements in 13 groups, including 1 hybrid aspherical, 1 SLD and 4 FLD elements
Notes	Optical Stabilizer (OS) technology offers shutter speeds approximately four stops slower than would otherwise be possible. AF mounts: Canon, Nikon, S	Planned AF Mounts: Nikon, Canon, Pentax, Sigma, Sony. Nikon mounts do not have an aperture ring. Some functions may not work depending on the camera
APS Equivalent	1.5x: 270mm; 1.6x: 288mm	1.5x: 18 - 36mm; 1.6x: 19.2 - 38.4mm
Aperture (f)	2.80 - 22.00	0.60 - 22.00
Diaphragm Blades	9	6
Zoom System	-	Rotary
Diameter (mm)	95	87