It looks like Yongnuo will soon be releasing a new manual focus macro lens, the YN60mm f/2 MF. (thanks Bali)
Specifications
Focal Length | 60mm |
Lens Construction | 9 groups 10 blades |
Aperture Blades | 7 blades |
Minimum Aperture | f/16 |
Min. Focusing Distance | about 0.234 meters |
Maximum Magnification | 1× |
Filter Diameter | 67mm |
Size (DxL) | about 76×115mm |
Weight | about 586g |