Comparison of Laowa 9mm f/2.8 Zero-D and Tamron SP AF 11-18mm f/4.5-5.6 Di II LD Aspherical IF

Attribute	Tamron SP AF 11-18mm f/4.5-5.6 Di II LD Aspherical IF ×	Laowa 9mm f/2.8 Zero-D ×
Filter Size (mm)	77	49
Notes	Available mounts: Canon, Minolta, Nikon; Includes petal type lens hood.	Built-in petal-shaped lens hood; Available mounts: Canon EF-M, Fujifilm X, Micro Four Thirds, Sony E, DJI DL
Closest Focus (m)	0.25	0.12
Magnification Ratio (x)	0.13	0.13
Type	Wide Zoom	Wide Prime
Focus Details	Internal	Internal; Manual focus only
APS Equivalent	1.5x: 16.5 - 27mm; 1.6x: 17.6 - 28.8mm	1.5x: 13.5mm; 1.6x: 14.4mm; 2.0x: 18mm
Diameter (mm)	82.2	60
Image Circle	Image Circle	APS-C
Focal Length (mm)	11.00 - 18.00	9.00
Brand	Tamron	Laowa
Name	Tamron SP AF 11-18mm f/4.5-5.6 Di II LD Aspherical IF	Laowa 9mm f/2.8 Zero-D
Weight (g)	355	215
Aperture (f)	4.50 - 29.00	2.80 - 22.00
Diaphragm Blades	7	7
Diagonal Angle of View (degree)	75.00 - 103.00	113.00
Length (mm)	78.6	53
Zoom System	Rotary, telescoping	-
Lens Construction	15 elements in 12 groups, including aspherical and low dispersion elements	15 elements in 10 groups, including 2 aspherical and 3 ED elements; FEC coating