Comparison of Panasonic 70-200mm f/2.8 OIS Lumix S Pro (S-E70200) and Sigma 180mm ƒ/2.8 EX DG OS HSM APO Macro

Attribute	Sigma 180mm ƒ/2.8 EX DG OS HSM APO Macro ×	Panasonic 70-200mm f/2.8 OIS Lumix S Pro (S-E70200) ×
Notes	Optical Stabilizer (OS) technology offers shutter speeds approximately four stops slower than would otherwise be possible. AF mounts: Canon, Nikon, S	O.I.S. Image Stabilization (Dual I.S. 2 compatible); Dust/splash-resistant
Magnification Ratio (x)	1	0.21
Filter Size (mm)	86	82
Length (mm)	203.9	208.6
Closest Focus (m)	0.47	0.95
Diagonal Angle of View (degree)	13.70	12.00 - 34.00
Focus Details	Internal with focus limiter; HSM with full-time manual focus override	Internal AF double focus system; AF/MF clutch mechanism
Focal Length (mm)	180.00	70.00 - 200.00
APS Equivalent	1.5x: 270mm; 1.6x: 288mm	105 - 300mm
Brand	Sigma	Panasonic
Image Circle	35mm	35mm (L-Mount)
Name	Sigma 180mm ƒ/2.8 EX DG OS HSM APO Macro	Panasonic 70-200mm f/2.8 OIS Lumix S Pro (S-E70200)
Weight (g)	1.64	1.57
Type	Telephoto Prime Macro	Telephoto Zoom
Aperture (f)	2.80 - 22.00	2.80 - 22.00
Diaphragm Blades	9	11
Diaphragm Blades Type	rounded	circular
Lens Construction	19 elements in 14 groups, including 3 FLD ("F" Low Dispersion) glass elements	22 elements in 17 groups, including 1 aspherical, 2 UED, and 3 ED elements; Fluorine coating on front element
Zoom System	-	Rotary
Diameter (mm)	95	94.4