ZY Optics recently announced a new compact Super Macro Lens called the Zhongyi Mitakon 20mm f/2 4.5x. Although it has been designed for full-frame cameras, mounts for most mirrorless brands including Sony E, Micro Four Thirds and Fujifilm X are also available.
This new lens is characterised by its high reproduction ratio of 4.5:1 (4.5x magnification), which is similar to the level of magnification you’d get with an extension tube. It is also extremely compact at just 230 grams and 6cm in length.
The Mitakon 20mm f/2 currently available to purchase from the ZY Optics website for $199 US.