Comparison of Nikon 20mm ƒ/1.8G ED AF-S Nikkor and Panasonic 12mm ƒ/1.4 ASPH Leica DG SUMMILUX

Attribute	Nikon 20mm ƒ/1.8G ED AF-S Nikkor ×	Panasonic 12mm ƒ/1.4 ASPH Leica DG SUMMILUX ×
Diaphragm Blades Type	rounded	rounded
Filter Size (mm)	77	62
Aperture (f)	1.80 - 16.00	1.40 - 16.00
Closest Focus (m)	0.2	0.2
Magnification Ratio (x)	0.23	0.1
Notes	-	Manual Aperture Ring; Weather-resistant Design; Metal Lens Mount, Barrel and Hood; Included Accessories: Front and Rear Lens Caps, Hood, Storage Bag.
Type	Wide Prime	Wide Prime
APS Equivalent	30mm	-
Diaphragm Blades	7	9
Image Circle	35mm	Micro Four Thirds
Focal Length (mm)	20.00	12.00
Brand	Nikon	Panasonic
Name	Nikon 20mm ƒ/1.8G ED AF-S Nikkor	Panasonic 12mm ƒ/1.4 ASPH Leica DG SUMMILUX
Weight (g)	355	335
Diagonal Angle of View (degree)	94.00	84.00
Length (mm)	80.5	70
Diameter (mm)	82.5	70
Focus Details	AF-S with internal focusing	High-speed AF; Internal with stepping motor; AF/MF switch
35mm Equivalent	-	24mm
Lens Construction	13 elements in 11 groups, including 2 apherical and 2 ED elements; Nano Crystal Coat; Super Integrated Coating	15 elements in 12 groups, including 1 ED, 2 UED and 2 aspherical elements