Beautiful Andrew!, just gorgeous...
you'd be happy to know that the 1.4x extender is compatible (which turns it into a 189mm F2.8) and I'm 99% the 2x works as well, I now NEVER travel with the 70-200, just my 135mm and the converter
Very Happy to support this project, just donated $35 (I own both a 5N & a Nex7 so this is awesome), btw, Im ALSO a supporter of Richard Gale so my Kick ass Nex5N with housing is gonna kick some serious butt!