I have been testing the a7R in combination with the Vello Wireless ShutterBoss Timer Remote. My goal was to assess the feasibility of the Vello Remote for delayed remote triggering, but also as in intervalometer for time lapse photography. Mostly stars, meteors. Observation: The Vello worked fine, but long exposures (23 seconds) on the a7R resulted in nearly 27 seconds of 'processing' before the camera was ready to shoot again. I am shooting RAW. Question: Have other people seen this very long processing time following long exposures? I would love to know what the camera is doing during that time and whether there is a way to substantially reduce the processing time.