Attribute | Sigma 18-200mm ƒ/3.5-6.3 DC OS × | Tamron 28-200mm F/2.8-5.6 Di III RXD (Model A071) × |
---|---|---|
Aperture (f) | 3.50 - 22.00 | 2.80 - 22.00 |
Filter Size (mm) | 72 | 67 |
Notes | Image Stabilization; Available AF mounts: Sigma, Canon, Nikon (HSM); Includes petal-type lens hood. | Available mounts: Sony E-mount; Moisture-Resistant Construction. |
Closest Focus (m) | 0.45 | 0.19 |
Magnification Ratio (x) | 0.26 | 0.32 |
Diameter (mm) | 79 | 74 |
Type | Standard Zoom | Standard Zoom |
APS Equivalent | 1.5x: 27 - 300mm; 1.6x: 28.8 - 320mm | 1.5x: 42 - 300mm |
Diaphragm Blades | 7 | 7 |
Image Circle | Image Circle | 35mm (Full-frame E-Mount) |
Focal Length (mm) | 18.00 - 200.00 | 28.00 - 200.00 |
Brand | Sigma | Tamron |
Name | Sigma 18-200mm ƒ/3.5-6.3 DC OS | Tamron 28-200mm F/2.8-5.6 Di III RXD (Model A071) |
Weight (g) | 610 | 575.5 |
Diagonal Angle of View (degree) | 7.10 - 69.30 | 12.35 - 75.38 |
Lens Construction | 18 elements in 13 groups, including 3 SLD and 2 aspherical elements | 18 elements in 14 groups, including GM (Glass Molded Aspherical), hybrid aspherical, XLD (eXtra Low Dispersion) and LD (Low Dispersion) lens elements |
Zoom System | Rotary | Rotary (with Zoom Lock) |
Length (mm) | 100 | 116.8 |
Diaphragm Blades Type | - | circular |
Focus Details | Internal with AF/MF switch | Internal using RXD (Rapid eXtra-silent stepping Drive) autofocus motor |