Thanks for the update. I have been modifying code to capture a 640×480 image and the use numpy to extract a 320×240 with a good image. To give you some background (which might or might not be interesting) I am capturing input from a sony xr-500 camera (daylight and IR at night) and then using the sony LANC protocol to start/stop recording in the camera in hi-def. I also use to start/stop xr-500 and VG-20 photo images. This is for wildlife photo/video. I was using a windows notebook, but am planning on replacing with the Raspberry Pi. I have time/resources to do additional testing if this is useful for you.