Tamron and Tokina have joined the Micro Four Thirds group, meaning all three major third-party lens makers are likely to produce optics for the system. No further details of their intentions have been given. The announcement comes just after Sigma announced its first lenses for both Sony's E-mount and Micro Four Thirds - both lenses that we think make more sense on APS-C than the Micro Four Thirds format. It will be interesting to see whether Tamron and Kenko Tokina develop lenses specifically for the smaller format. Meanwhile high-end video manufacturer Astrodesign has also joined the consortium, and released a Micro Four Thirds mount 4K video camera head.


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