Need Explanation with frame rate in cs4 from Vixia HF11

[Troy Smith]

HI all,

I just recently purchased a Vixia Hf11,
my question is about framerates, whether I shoot 60i, pf30 or pf 24, when I import the mt2 files
into cs4 they all show up as having 29.97 fps rate, is this correct? I would have thought esp when shooting 60i
it would show up as 59.97, if anyone has a explanation I'd greatly appreciate your time.

Regards
Troy Smith

[poisondeathray]

60i is really 30i (30 frames/s or 60 fields/s) , and I'll call use that terminology here:

When you import 30i footage into PP, it will separate the fields and assume field order according to the interpretation properties. If you used a preset like AVCHD for your project settings, it would automatically be top field first.

It needs to reconstruct the frames from the fields in order for you to edit (otherwise you will see combing), so it essentially deinterlaces it for you in the program monitor for editing, but the project is still 30i.

If you want to bob-deinterlace to 60p, you can preprocess it first with avisynth, and use 60p for project settings.

When you import 30p footage in, it will be 30p only if you have the correct settings. Canon wraps their footage in a special container that signals (incorrectly) interlaced to the NLE. You have to conform the file to progressive by right clicking the clip in the bin, and use "interpret footage" conform to no fields (progressive). This way there will be no red-render bar

When you import 24p footage in, it will be wrapped in a 30i container, so you need pulldown removal or IVTC. Conforming the file won't work in this case. I use avisynth for that, but I'm sure there are other methods if you search. For example , cineform offers pulldown removal I think.

[Troy Smith]

Thanks alot, great help that is.

Regards
Troy