Comparison of Sigma 28-105mm f/2.8-4 Aspherical IF and Sigma 28-135mm f/3.8-5.6 Aspherical IF Macro

Attribute	Sigma 28-105mm f/2.8-4 Aspherical IF ×	Sigma 28-135mm f/3.8-5.6 Aspherical IF Macro ×
Filter Size (mm)	62	62
Notes	Available AF Mounts: Sigma, Canon, Nikon, Minolta, Pentax	Available AF Mounts: Sigma, Canon, Nikon, Minolta, Pentax
Closest Focus (m)	0.5	0.24
Magnification Ratio (x)	0.18	0.5
Type	Standard Zoom	Standard Zoom
Length (mm)	79.5	75
APS Equivalent	1.5x: 42 - 157.5mm; 1.6x: 44.8 - 168mm	1.5x: 42 - 202.5mm; 1.6x: 44.8 - 216mm
Zoom System	Rotary	Rotary
Image Circle	35mm	35mm
Focal Length (mm)	28.00 - 105.00	28.00 - 135.00
Brand	Sigma	Sigma
Name	Sigma 28-105mm f/2.8-4 Aspherical IF	Sigma 28-135mm f/3.8-5.6 Aspherical IF Macro
Weight (g)	405	410
Aperture (f)	2.80 - 22.00	3.80 - 22.00
Diaphragm Blades	8	7
Diagonal Angle of View (degree)	23.30 - 75.40	18.20 - 75.40
Lens Construction	12 elements in 11 groups, including 1 aspherical element	13 elements in 12 groups, including 1 aspherical element
Diameter (mm)	77	75
Focus Details	Internal	Internal