→ Several different Nikon 1 J5 camera configurations are already in stock at Amazon, B&H, BuyDig, Cameta Camera and Jessops UK.
→ The Nikon 1 J5 user manual is now available online.
→ Nikon 1 J5 samples at different ISO can be found on flickr (image above: jpeg fine @ ISO 6,400). See also this flickr album and this post.
→ Hands-on preview from DigitalRev (many other J5 videos explaining different functions and features can be found here).