Here are the format supported starting version 3.3 and 7.0 of K2 and K2 Summit:
K2 SD:
DV25-50
IMX 30-40-50 (MPEG 2 I-frame SD)
K2 HD:
XDCAM HD
Summit 7.0:
DV100 (DVCPROHD), DV50 and DV25
For any question concerning this subject contact Régis André: regis.andre@thomson.net