Comparison of Fujinon GF 63mm f/2.8 R WR and Sigma 65mm f/2 DG DN Contemporary

Attribute	Fujinon GF 63mm f/2.8 R WR ×	Sigma 65mm f/2 DG DN Contemporary ×
Diaphragm Blades Type	rounded	rounded
Notes	For Fujifilm G-mount; Weather, dust and freeze resistant; Lens caps, hood and case included.	Available AF Mounts: L-Mount, Sony E-Mount
Aperture (f)	2.80 - 32.00	2.00 - 22.00
Magnification Ratio (x)	0.17	0.15
Filter Size (mm)	62	62
35mm Equivalent	50mm	-
Type	Standard Prime	Tele Prime
Diaphragm Blades	9	9
Lens Construction	10 elements in 8 groups, including 1 ED (extra low dispersion) element	12 elements in 9 groups, with 1 SLD glass and 2 aspherical lenses
Image Circle	Medium Format (Fujifilm G-mount)	65mm
Focal Length (mm)	63.00	65.00
Brand	Fujinon	Sigma
Name	Fujinon GF 63mm f/2.8 R WR	Sigma 65mm f/2 DG DN Contemporary
Weight (g)	405	405
Diagonal Angle of View (degree)	46.90	36.80
Focus Details	AF via a linear motor	Smooth, quiet and high-speed AF via stepping motor
Diameter (mm)	84	72
Length (mm)	71	74.7
APS Equivalent	-	1.5x: 97.5mm
Closest Focus (m)	0.5	0.55