editing time base

if im shooting 50i on my sony v1 do i need to change the editing timebase in the sequence setting to 50 or 25???? im confused

would love an answer for this

50i is 25. Or to put it another way 50i (interlaced frames) is equal to 25 (fps - frames per second). There are 2 fields per frame so... 2 fields X 25 fps = 50i

Luke: if you're recording in HDV at 50i, you should be using the HDV 1080i50 Preset. The 25 preset is for progressive scan material.