Comparison of Sigma APO 135-400mm f/4.5-5.6 Aspherical and Sony FE 70-300mm f/4.5-5.6G OSS SEL70300G

Attribute	Sigma APO 135-400mm f/4.5-5.6 Aspherical ×	Sony FE 70-300mm f/4.5-5.6G OSS SEL70300G ×
Aperture (f)	4.50 - 32.00	4.50 - 29.00
Filter Size (mm)	77	72
Notes	Available AF Mounts: Sigma, Canon, Nikon, Minolta, Pentax	Sony Full-frame E-Mount; Optical Image Stabilization; Dust and moisture resistant
Closest Focus (m)	2	0.9
Magnification Ratio (x)	0.19	0.31
Diameter (mm)	88.5	84
Type	Telephoto Zoom	Telephoto Zoom
APS Equivalent	1.5x: 202.5 - 600mm; 1.6x: 216 - 640mm	105 - 450mm
Diaphragm Blades	9	9
Image Circle	35mm	35mm
Focal Length (mm)	135.00 - 400.00	70.00 - 300.00
Brand	Sigma	Sony
Name	Sigma APO 135-400mm f/4.5-5.6 Aspherical	Sony FE 70-300mm f/4.5-5.6G OSS SEL70300G
Weight (g)	1245	854
Diagonal Angle of View (degree)	6.20 - 18.20	8.20 - 34.00
Lens Construction	13 elements in 11 groups, including 1 aspherical and 3 SLD elements	16 elements in 13 groups, including 4 aspherical and 2 ED elements; Nano AR coating
Zoom System	Rotary	Rotary
Length (mm)	183.5	143.5
Diaphragm Blades Type	-	circular
Focus Details	Internal	Internal focus with Linear AF motor; AF/MF switch; Focus range limiter