| | Sigma 18-50mm F2.8 EX DC Macro | Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical [IF] | Nikon 16-85mm f/3.5-5.6G ED VR AF-S DX Zoom-Nikkor | Nikon 17-55mm f/2.8G ED-IF AF-S DX Zoom-Nikkor |
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| | 1 comentario
| 3 comentarios
| 3 comentarios
| 2 comentarios
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| Datos Generales |
| Tipo | zoom medio | zoom medio | zoom polivalente | zoom medio |
| Montura | Canon, Nikon, Pentax, Sony, Sigma, 4/3 (APS) | Canon, Nikon, Pentax, Sony (APS) | Nikon (APS) | Nikon (APS) |
| Fecha anuncio | -- | 15/02/2006 | 29/01/2008 | -- |
| Precio | 379.00 € | 349.00 € | 589.00 € | 1309.00 € |
| Visitas | 13434 (259) | 19215 (257) | 10212 (133) | 11092 (195) |
| Datos Opticos |
| Focal | 18-50 mm. | 17-50 mm. | 16-85 mm. | 17-55 mm. |
| Abertura | F:2.8 | F:2.8 | F:3.5-5.6 | F:2.8 |
| Hojas iris | 7 | 7 | 7 | -- |
Composición
(lentes/grupos) | 15 / 13 | 16 / 13 | 17 / 11 | 14 / 10 |
| Enfoque min. | 20 cm. | 27 cm. | 38 cm. | 36 cm. |
| Macro máx. | 1:3 (0.33x) | 1:3.9 (0.26x) | 1:4.6 (0.22x) | -- |
| Datos Mecánicos |
| Estabilizado | No | No | Si | No |
Motor enfoque
ultrasónico | No | No | Si | Si |
| Frontal gira | -- | No | No | No |
| Largo cambia | -- | Si | Si | -- |
| Diam. filtro | 72 mm. | 67 mm. | 67 mm. | 77 mm. |
| Dimensiones (DxL) | 79 x 86 mm. | 73 x 83 mm. | 72 x 85 mm. | 86 x 111 mm. |
| Peso | 450 gr. | 430 gr. | 485 gr. | 755 gr. |
