The small image on top shows you the first image of an Olympus 250mm f/5.0 mirror lens patent. The first thing you will notice is that it’s quite a compact lens! The patent has been spotted by Egami and I would really like it to see this lens make it into mass production.
The closest lens we have right now is the Tokina 300mm f/6.3 (price and specs here at BHphoto).