Comparison of Zeiss 12mm f/2.8 Touit 2.8/12 and Nikon 20mm f/2.8D AF Nikkor

Attribute	Nikon 20mm f/2.8D AF Nikkor ×	Zeiss 12mm f/2.8 Touit 2.8/12 ×
Magnification Ratio (x)	0.12	0.11
Filter Size (mm)	62	67
Focus Details	Close Range Correction (CRC)	Autofocus; With grippy focus ring for precise manual focusing
Closest Focus (m)	0.25	0.18
Lens Construction	12 elements in 9 groups	11 elements in 8 groups with 2 aspherical and 3 anomalous partial dispersion elements
Length (mm)	69	68
Focal Length (mm)	20.00	12.00
Diaphragm Blades Type	-	rounded
Brand	Nikon	Carl-zeiss
Image Circle	35mm	APS-C
Name	Nikon 20mm f/2.8D AF Nikkor	Zeiss 12mm f/2.8 Touit 2.8/12
Weight (g)	269	270
Type	Wide Prime	Wide Prime
Notes	-	Available CSC mounts: Fujifilm X-Mount, Sony NEX E-Mount (X-Mount version has aperture ring, E-Mount does not).
APS Equivalent	30mm	1.5x: 18mm
Aperture (f)	2.80 - 22.00	2.80 - 22.00
Diaphragm Blades	7	9
Diagonal Angle of View (degree)	94.00	99.00
Diameter (mm)	69	65