Goyo (Click here) made five new C-mount primes lenses that do cover the whole 4/3 sensor! Those are 12-16-25-35-50mm f/2.0 primes! To bad they don’t have a native m43 mount because otherwise this would be an amazing news. You will need to buy the C-mount adapter (You can get them here on eBay for $8-$20) to use those lenses.
On their website you can find sketches of the optics (no real pictures). They look pretty big. But finally we have some new lenses we can play with
There are no info about availability and price. And I didn’t fin any Goyo Lens on eBay (only…”Toyo”! Is it the same?). That’s the list of the new lenses you can find on Goyo’s website: