Converts by a factor of x2 the focal length of the lens in use, with the loss of two stops aperture.
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
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