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1080p vs 1080i and HV30
Sorry, I don’t really know how to ask this question so it’s probably muddled.
I’m new to both CS4 and HD shot with a Canon HV30.
I shoot in 30p, which I assumed I’d edit in CS4 in 1080p 30.
However when I do that, I have to render the video in the timeline.
If I use 1080i 30, I don’t have to render.I read somewhere that the HV30 doesn’t actually shoots in 60i regardless of the setting and I’m having difficulty with the concept.
When I use the 1080i setting to edit 30p video in CS4 from the HV30, does that that mean I lose the advantage of using the “progressive” setting and have all the interlacing issues so might as well shoot in 60i to begin with or do I still retain the advantages even though I’m editing in 1080i in CS4.
Does the rendering decrease the quality to any meaningful degree should I use the 1080p 30 setting?
Any tips appreciated.
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2 Replies
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While I won’t be able to help you with Premiere since I don’t own an HV30, you are correct that tape only supports 60i, however Canon uses a trick. They do allow recording in segmented frames, which means that both fields are recorded at the same time, and after correct deinterlacing will form a full resolution progressive frame.
Not sure if it’s available for all frame rates, that may only be the case for 24p, the manual should tell you…
Vince Becquiot
Kaptis Studios
San Francisco – Bay Area -
That makes sense. Does it follow that rendering the video in the 1080p project setting in CS4 does that de-interlacing?
And I take with canon’s system, I don’t lose any quality when converting to progressive since the two frames should be identical?Thanks
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