Comparison of Zeiss 18mm f/2.8 Batis 2.8/18 and Panasonic 25mm ƒ/1.4 ASPH Leica DG SUMMILUX

Attribute	Zeiss 18mm f/2.8 Batis 2.8/18 ×	Panasonic 25mm ƒ/1.4 ASPH Leica DG SUMMILUX ×
Aperture (f)	2.80 - 22.00	1.40 - 16.00
Filter Size (mm)	77	46
Notes	Available lens mounts: Sony FE-Mount (Full-frame E-Mount); Dust and weather sealed. Includes petal-shaped lens hood, lens caps.	Additional features: Nano Surface Coating. Included Accessories: Hood, front and rear caps, storage bag
Closest Focus (m)	0.25	0.3
Magnification Ratio (x)	0.11	0.11
Diameter (mm)	100	63
Type	Wide Prime	Standard Prime
APS Equivalent	1.5x: 27mm	-
Diaphragm Blades	9	7
Image Circle	35mm	Micro Four-Thirds
Focal Length (mm)	18.00	25.00
Brand	Carl-zeiss	Panasonic
Name	Zeiss 18mm f/2.8 Batis 2.8/18	Panasonic 25mm ƒ/1.4 ASPH Leica DG SUMMILUX
Weight (g)	330	200
Diaphragm Blades Type	rounded	circular
Lens Construction	11 elements in 10 groups, including 4 elements that are aspheric on both sides and 7 made from special types of glass; Distagon design	9 elements in 7 groups, including 1 UHR (Ultra High Refractive Index) and 2 Aspherical elements
Diagonal Angle of View (degree)	99.00	47.00
Length (mm)	95	54.5
35mm Equivalent	-	50mm
Focus Details	Autofocus with linear motor; Manual focus supported; OLED display of focus distance and depth of field	High speed AF