Tamron develops new SP AF60mm F/2.0 Di II MACRO 1:1 lens

SPECIFICATIONS
Model Name G005
Focal Length 60mm
Maximum Aperture F/2.0
Angle of View (diagonal) 26 degrees and 35 minutes (APS-C size equivalent)
Optical Construction 14 elements in 10 groups
Minimum Focusing Distance 0.23m (9.1in.)
Max. Magnification Ratio 1 : 1
Minimum Working Distance 100mm (3.94in.)
Filter Diameter 55mm
Overall Length 80mm (3.15in.)*
Maximum Diameter 73mm (2.9in.)
Weight 400g (14.1oz.)*
Diaphragm Blade Number 7
Minimum Aperture F/22
Standard Accessory Lens Hood
Compatible Mount For Canon, Nikon (with built-in AF motor) and Sony

Source