Comparison of Tamron 10-24mm ƒ/3.5-4.5 Di II LD SP AF and Tamron SP AF 11-18mm f/4.5-5.6 Di II LD Aspherical IF

Attribute	Tamron 10-24mm ƒ/3.5-4.5 Di II LD SP AF ×	Tamron SP AF 11-18mm f/4.5-5.6 Di II LD Aspherical IF ×
Filter Size (mm)	77	77
Notes	Included Accessories: Flower-Shaped Lens Hood; Available AF Mounts: Canon, Nikon, Pentax, Sony	Available mounts: Canon, Minolta, Nikon; Includes petal type lens hood.
Closest Focus (m)	0.24	0.25
Magnification Ratio (x)	0.2	0.13
Type	Wide Zoom	Wide Zoom
Length (mm)	86.5	78.6
APS Equivalent	1.5x: 15 - 36mm; 1.6x: 16 - 38.4mm	1.5x: 16.5 - 27mm; 1.6x: 17.6 - 28.8mm
Zoom System	Rotary	Rotary, telescoping
Image Circle	APS-C	Image Circle
Focal Length (mm)	10.00 - 24.00	11.00 - 18.00
Brand	Tamron	Tamron
Name	Tamron 10-24mm ƒ/3.5-4.5 Di II LD SP AF	Tamron SP AF 11-18mm f/4.5-5.6 Di II LD Aspherical IF
Weight (g)	370	355
Aperture (f)	3.50 - 22.00	4.50 - 29.00
Diaphragm Blades	7	7
Diagonal Angle of View (degree)	60.30 - 108.70	75.00 - 103.00
Lens Construction	12 elements in 9 groups, including 1 HID glass element and 2 LD glass elements	15 elements in 12 groups, including aspherical and low dispersion elements
Diameter (mm)	83.2	82.2
Focus Details	Internal, with AF/MF switch	Internal