Comparison of Panasonic 70-200mm f/4 OIS Lumix S Pro (S-R70200) and Sigma APO 50-150mm f/2.8 EX DC HSM

Attribute	Panasonic 70-200mm f/4 OIS Lumix S Pro (S-R70200) ×	Sigma APO 50-150mm f/2.8 EX DC HSM ×
Notes	O.I.S. Image Stabilization (Dual I.S. 2 compatible); Dust/splash-resistant	Available AF Mounts: Sigma, Canon, Nikon; Included Accessories: Lens Hood
Magnification Ratio (x)	0.25	0.19
Filter Size (mm)	77	67
Length (mm)	179	132.6
Closest Focus (m)	0.92	1
Diagonal Angle of View (degree)	12.00 - 34.00	9.50 - 27.90
Focus Details	Internal AF with linear motor; AF/MF clutch mechanism	HSM (Hyper Sonic Motor) with full-time manual focus override
Focal Length (mm)	70.00 - 200.00	50.00 - 150.00
APS Equivalent	105 - 300mm	1.5x: 75 - 225mm; 1.6x: 80 - 240mm
Brand	Panasonic	Sigma
Image Circle	35mm (L-Mount)	APS-C
Name	Panasonic 70-200mm f/4 OIS Lumix S Pro (S-R70200)	Sigma APO 50-150mm f/2.8 EX DC HSM
Weight (g)	985	780
Type	Telephoto Zoom	Telephoto Zoom
Aperture (f)	4.00 - 22.00	2.80 - 22.00
Diaphragm Blades	9	9
Diaphragm Blades Type	circular	-
Lens Construction	23 elements in 17 groups, including 1 aspherical, 1 UED, 1 UHR and 3 ED elements; Fluorine coating on front element.	18 elements in 14 groups, including 4 SLD elements
Zoom System	Rotary	Rotary
Diameter (mm)	84.4	76.3