Comparison of Carl Zeiss 21mm f/2.8 Distagon T* 2.8/21 and Fujinon GF 30mm f/3.5 R WR

Attribute	Carl Zeiss 21mm f/2.8 Distagon T* 2.8/21 ×	Fujinon GF 30mm f/3.5 R WR ×
Diagonal Angle of View (degree)	90.00	84.70
Notes	Available SLR mounts: Canon EF-Mount (ZE), Nikon F-Mount (ZF, ZF.2), Pentax K-Mount (ZK). Nikon ZF.2 version includes CPU interface for autoexposure	For Fujifilm G-mount; Weather, dust and freeze resistant; Lens caps, hood and pouch included.
Aperture (f)	2.80 - 22.00	3.50 - 32.00
Magnification Ratio (x)	0.2	0.15
Filter Size (mm)	82	58
Diaphragm Blades Type	-	rounded
Type	Wide Prime	Wide Prime
APS Equivalent	1.5x: 31.5mm	-
Lens Construction	16 elements in 13 groups	13 elements in 10 groups, including 2 aspherical and 2 ED (extra low dispersion) elements
Image Circle	35mm	Medium Format (Fujifilm G-mount)
Focal Length (mm)	21.00	30.00
Brand	Carl-zeiss	Fujinon
Name	Carl Zeiss 21mm f/2.8 Distagon T* 2.8/21	Fujinon GF 30mm f/3.5 R WR
Weight (g)	600	510
Diameter (mm)	87	84
Length (mm)	109	99.4
Diaphragm Blades	-	9
Closest Focus (m)	0.22	0.32
35mm Equivalent	-	24mm
Focus Details	Manual focus only	AF via a linear motor