What is the switching time between cameras with Imagenation frame grabbers?
The actual switching time is immediate. However, the time required to resynchronize to the incoming video and grab a good image is an extra field on all products except the PXC200AL which requires two complete frames. Immediate switching means zero data loss if your cameras are genlocked. In other words, you could switch cameras during the vertical sync period when there is no data and grab the next field or frame. In the normal (non-genlocked) mode you typically switch into the middle of a video field when you switch cameras. The frame grabber will “be confused” for the rest of that partial field of video and will require one full field to resynchronize. On average the time required to switch and resynchronize is 1 to 1 fields. The PXC200AL is not suited for rapid camera switching. If you like its feature set and price you should look at the PXC200AF with the optional control package. It has a normal resynchronization time of 1 to 1 fields.
