Comparison of Sony SAL-1870 DT 18-70mm f/3.5-5.6 and Sony 28-70mm f/3.5-5.6 OSS SEL2870 [S]ave
| Attribute |  Sony 28-70mm f/3.5-5.6 OSS SEL2870 × |  Sony SAL-1870 DT 18-70mm f/3.5-5.6 × |
|---|---|---|
| Magnification Ratio (x) | 0.19 | 0.25 |
| Filter Size (mm) | 55 | 55 |
| Front Element Rotation | - | - |
| Closest Focus (m) | 0.3 | 0.38 |
| Diameter (mm) | 72.5 | 66 |
| Type | Standard Zoom | Standard Zoom |
| APS Equivalent | 42 - 105mm | 27 - 105mm |
| Diagonal Angle of View (degree) | 34.00 - 75.00 | 23.00 - 76.00 |
| Image Circle | 35mm (Full-frame E-Mount) | APS-C |
| Focal Length (mm) | 28.00 - 70.00 | 18.00 - 70.00 |
| Brand | Sony | Sony |
| Name | Sony 28-70mm f/3.5-5.6 OSS SEL2870 | Sony SAL-1870 DT 18-70mm f/3.5-5.6 |
| Weight (g) | 295 | 235 |
| Notes | Optical SteadyShot; Included Accessories: ALC-SH130 Petal Lens Hood | Included Accessories: SH0006 Lens Hood |
| Diaphragm Blades | 7 | 7 |
| Aperture (f) | 3.50 - 36.00 | 3.50 - 36.00 |
| Lens Construction | 9 elements in 8 groups, including 3 aspheric and 1 extra-low dispersion element | 11 elements in 9 groups, including 1 aspheric and 1 ED glass elements |
| Zoom System | Rotary | Rotary |
| Length (mm) | 83 | 77 |
| Diaphragm Blades Type | rounded | - |
| Focus Details | Linear motor | Front focusing |
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