Canon XH A1

HDV:
sudo@machine:~# dvgrab -f hdv
Found AV/C device with GUID 0x00008500013041c9
Capture Started
"dvgrab-003.m2t": 19.11 MiB 142 frames timecode 00:00:16.11 date 2009.07.30 18:34:21
Capture Stopped

(dvgrab 3.2, Ubuntu 8.x upgraded to 9.04, kernel 2.6.28-14-generic #47-Ubuntu SMP Sat Jul 25 00:28:35 UTC 2009 i686.)

So far no attempts to use camera directly with kdenlive. I like capturing first, using later. ;)
So far no attempts to use anything beside 50i.