| Name |
Sigma 28-105mm f/2.8-4 DG |
| Image Circle |
35mm |
| Type |
Standard Zoom |
| Focal Length |
28 - 105mm |
| APS Equivalent |
1.5x: 42 - 157.5mm; 1.6x: 44.8 - 168mm |
| Max Aperture |
f/2.8 - 4 |
| Min Aperture |
f/22 |
| Diaphragm Blades |
8 |
| Lens Construction |
12 elements in 11 groups, including 1 aspherical element |
| Diagonal Angle of View(Based on image circle) |
75.4 to 23.3 degrees |
| Focus Details |
Internal focusing |
| Front Element Rotation |
No |
| Zoom System |
Rotary |
| Closest Focus |
50cm / 19.7 in. |
| Magnification Ratio |
0.18x / 1:5.5 |
| Filter Size |
72mm |
| Dimensions(Length x Diameter) |
81mm x 77mm / 3.2 in. x 3.0 in. |
| Weight |
405g / 14.3 oz |
| Notes |
Available AF Mounts: Sigma, Canon, Nikon, Minolta, Pentax |
| Typical Online Price |
US$229.99 |
