Comparison of Zeiss 50mm f/2 Loxia 2/50 and Fujinon GF 63mm f/2.8 R WR

Attribute	Fujinon GF 63mm f/2.8 R WR ×	Zeiss 50mm f/2 Loxia 2/50 ×
Aperture (f)	2.80 - 32.00	2.00 - 22.00
Filter Size (mm)	62	52
Notes	For Fujifilm G-mount; Weather, dust and freeze resistant; Lens caps, hood and case included.	Sony E-Mount (full frame); Weather-resistant lens mount gasket; Included Accessories: Lens hood, front and rear lens caps, de-click key.
Closest Focus (m)	0.5	0.45
Magnification Ratio (x)	0.17	0.14
Diameter (mm)	84	62.1
Type	Standard Prime	Standard Prime
APS Equivalent	-	1.5x: 75mm
Diaphragm Blades	9	10
Image Circle	Medium Format (Fujifilm G-mount)	35mm
Focal Length (mm)	63.00	50.00
Brand	Fujinon	Carl-zeiss
Name	Fujinon GF 63mm f/2.8 R WR	Zeiss 50mm f/2 Loxia 2/50
Weight (g)	405	320
Diaphragm Blades Type	rounded	rounded
Lens Construction	10 elements in 8 groups, including 1 ED (extra low dispersion) element	6 elements in 4 groups; Zeiss T* anti-reflective coating
Diagonal Angle of View (degree)	46.90	46.80
Length (mm)	71	59.2
35mm Equivalent	50mm	-
Focus Details	AF via a linear motor	Manual focus only, with large 180 degree focus throw, engraved distance and DOF scales