Just put in an order for the A7Rmk2. Been saving up for a full frame for years and am finaly taking the plunge. Currently, I have a Panasoic GX7 (micro four thirds) and Fuji XM1 (crop frame) - both of which generate 16 MP images. I process these files in Lightroom and Photoshop using a laptop that has an i5 processor and 8gb of RAM. The laptop handles these files prety well but will it cope with the massive 42.4 MP files of the Sony? Or will I have to break the bank and upgrade my editing system?