The device name I was referring to is a Video Peak Store - The Model 443 Video Peak Store will store a new incoming pixel if it is brighter than the corresponding pixel already stored in frame memory. It stores the brightest aspects over time of scene in front of a video camera. The Peak Store capability is ideal for capturing lightning flashes occuring over seconds or days, or showing the track of a bright object as it's moved over a dark background. I am not sure this is the same device I had which was the Colorado Video 593 peak store but I suspect it is. The 593 is not listed in their catalog. cheers, Andy > On Jul 19, 2018, at 10:51 AM, Herschel Mair <herschphoto@xxxxxxxxx> wrote: > > Interesting... That would be very useful in astronomy.... otherwise it sounds like a customized intervaometer type of gadget.... security cameras kinda do that with infra red but not through the lens... > On Wed, Jul 18, 2018 at 8:08 PM Andrew Davidhazy <andpph@xxxxxxx> wrote: > Herschel, > > Yup … composite assembly from 4 photographs. I hear there is one or more digital cameras that can accomplish the same look but with just one exposure. Do you or anyone know of such? > > I used to have access to a Colorado Video “interface”, FreezeFrame maybe? … between a video camera and the video recorder or terminal … it was designed to respond to changes within the field of view based on a base image. One could vary the time between captures … you could set it to respond to changes in signal level above or below a particular point. A sample application was to follow the flight patch of birds in a landscape. I was given a B&W model. Later they had a color model. > > Andy >
