Attribute | Tamron SP 24-70mm ƒ/2.8 Di VC USD (Model A007) × | Pentax 24-70mm f/2.8ED D FA HD SDM WR × |
---|---|---|
Aperture (f) | 2.80 - 22.00 | 2.80 - 22.00 |
Filter Size (mm) | 82 | 82 |
Notes | VC image stabilization. Available mounts: Canon, Nikon, Sony. Includes petal type lens hood. | Weather Resistant; Included Accessories: Lens hood, lens caps and soft case |
Closest Focus (m) | 0.38 | 0.38 |
Magnification Ratio (x) | 0.2 | 0.2 |
Zoom System | Rotary | Rotary |
Type | Standard Zoom | Standard Zoom |
APS Equivalent | 1.5x: 36 - 105mm; 1.6x: 38.4 - 112mm | 37 - 107mm |
Diaphragm Blades | 9 | 9 |
Image Circle | Image Circle | 35mm |
Focal Length (mm) | 24.00 - 70.00 | 24.00 - 70.00 |
Brand | Tamron | Pentax |
Name | Tamron SP 24-70mm ƒ/2.8 Di VC USD (Model A007) | Pentax 24-70mm f/2.8ED D FA HD SDM WR |
Weight (g) | 825 | 787 |
Diaphragm Blades Type | rounded | rounded |
Lens Construction | 17 elements in 12 groups, including 3 LD, 3 glass-molded aspherical, 1 hybrid aspherical and 2 XR (Extra Refractive Index) elements | 17 elements in 12 groups, including 3 ED and 4 aspherical elements, HD coating |
Diagonal Angle of View (degree) | 34.30 - 84.00 | 34.50 - 84.00 |
Length (mm) | 116.9 | 109.5 |
Diameter (mm) | 88.2 | 88.5 |
Focus Details | Internal with USD (Ultrasonic Silent Drive), continuous manual mechanism | SDM (Supersonic Direct-drive Motor) with Quick-shift focus system |