I have a new iEQ45 and would like to measure its PE. I have downloaded and installed ASCOM drivers, PHD and PECprep. I have a Samsung SDC-435 with an EasyCap and a Canon t3i with live view. I have not been able to get PHD to recognize either camera. With the SDC-435, PHD includes the USB capture under WMD capture but refuses to connect (WXastro capture has no problem). Any suggestion on measuring the PEC short of buying a guide camera?