Overview
Converts by a factor of x2 the focal length of the lens in use, with the loss of two stops aperture.
Key features
Coupling range is from f/2 to f/32
Effective aperture from f/4 to f/64
The reproduction ratio is double that of lens in use
The depth of field is half that of lens in use
Technical Specifications
| Focal lenght [mm] | Twice that of the basic focal lenght |
| Lens Construction: Elements / Groups | 7 / 5 |
| Mount-to-mount lenght | 44 |
| Dimensions: Dia x Length (extension from lens mount), [mm] | 64.5 x 52 |
| Weight [g] | 230 |
| Closest Marked Focusing Distance [m] | Same as that of lens in use |
