Nothing could quite disrupt the announcement from Nikon with the D500 and D5. However, for those mirrorless shooters, Olympus announced the 300mm f/4 PRO lens. 300mm f/4. This could be a really nice lens for wildlife photography, but it comes at a pretty hefty price of $2600 (comparing to other M4/3 lenses). If you compare it to a full frame counterpart, you're at a third of the price. What do you think?