Lens tech data for Sony Alpha 20/2.8
Image: Sony, used by permission
| General | |
|---|---|
| Name | Sony Alpha 20/2.8 |
| Mount type | A-mount |
| Release year | 2006 |
| Status | current |
| Manufacturer's order code | SAL-20F28 |
| Aperture | |
| Minimum aperture | 22 |
| Aperture blades | 7, circular |
| Optical construction | |
| Elements/groups | 10/9 |
| Minimum focus distance | 25 cm |
| Maximum magnification | 1:7.69 (0.13×) |
| Focus design | rear, floating |
| Features | |
| AF drive | in-body motor |
| D function | no |
| Lens buttons | – |
| Focus range limiter | – |
| Tripod mount | – |
| Other features | distance scale |
| Dimensions and weight | |
| Minimum length [mm] | 53.5 |
| Maximum length [mm] | 53.5 |
| Maximum diameter [mm] | 78.0 |
| Filter diameter [mm]/type | 72/front |
| Weight [g] nominal/net/gross | 285/unknown/unknown |
| Hood | |
| Hood mount | bayonet |
| Hood shape | flower |
| Hood part number | ALC-SH0013 |
| Movements | |
| Filter rotates when focusing | no |
| Length changes when focusing | no |
| Focus ring rotates in AF mode | yes |
| Construction and accessories | |
| Color | black |
| Weather sealing | no |
| Mount material | steel |
| Standard accessories | front cap, rear cap, hood |
| Optional accessories | pouch LCL-90AM |
| Misc | |
| Lens ID | 25791 |
| Comments | same design as Minolta version |
| Reviews & links | Kurt Munger (full review) |
| Related lenses | |
| Part of camera kit | – |
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