Comparison of Laowa 4mm f/2.8 Fisheye MFT and Panasonic 8mm f/3.5 Lumix G Fisheye

Attribute	Panasonic 8mm f/3.5 Lumix G Fisheye ×	Laowa 4mm f/2.8 Fisheye MFT ×
Aperture (f)	3.50 - 22.00	2.80 - 16.00
Diagonal Angle of View (degree)	180.00	210.00
Magnification Ratio (x)	0.2	0.11
Notes	Included accessories: Lens caps, storage bag	Available mounts: Micro Four Thirds
Type	Fisheye Prime	Fisheye Prime
Closest Focus (m)	0.1	0.08
Diaphragm Blades	7	7
Filter Size (mm)	22	-
Image Circle	Micro Four-Thirds	Micro Four-Thirds
Focal Length (mm)	8.00	4.00
Brand	Panasonic	Laowa
Name	Panasonic 8mm f/3.5 Lumix G Fisheye	Laowa 4mm f/2.8 Fisheye MFT
Weight (g)	165	135
Diameter (mm)	60.7	45.2
Lens Construction	10 elements in 9 groups, including 1 ED element	7 elements in 6 groups
35mm Equivalent	16mm	8mm
Length (mm)	51.7	25.5
Diaphragm Blades Type	rounded	-
Focus Details	Internal; Stepper Motor	Internal; Manual Focus only