Thanks Mike
I was hoping to improve on my lightweight birding set up with the Nikon 1 and that new CX 70 300mm lens
I have been looking at the Olympus OM-D E-M5 - I still have a couple of M4/3 mirror-less bodies from a few years ago plus a few adaptors etc., ….. Although the crop factor is x 2, (rather than x 2.7 of the Nikon 1 system), the IQ is supposed to be better and Olympus or Panasonic are about to release a good PRO 300mm prime lens … they have a 40 150mm f2.8 PRO lens now but it is £1,300 and I have read mixed reports, also Image Stabilisation is in the body for Oly M4/3 camera, so that's a plus.