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Canon 7D- Editing in 720 after shooting in 1080
I wanted to shoot a recent scene in 1080P as I believe in keeping shutter speed about double FPS rate…..so at 1080P 30 FPS I will use a shutter speed of 1/60th. Keeping with that assumption, in moderate light, shooting at 720P 60 fps would mean a shutter speed of 1/120th, requiring higher ISO (assuming I have already selected my f-stop for effect)SO, while I was editing I noticed that I had a few shots that were a bit wider than I liked and wished I could zoom in without loosing quality, so I thought, why not edit in 720P, giving me a nice margin to work with…..so I am importing my 1080P footage into a 720P timeline in Premier Pro CS5….
I will be able to zoom in without loosing any quality…..but I have a concern……what fps level should I use when setting my timeline in premier? Is there any impact on taking 1080P footage shot at 30fps and editing in 720P 60fps that I am missing? I don’t want to get it all imported and find out there is a problem……Charlie
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13 Replies
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[Charles Cunliffe] “what fps level should I use when setting my timeline in premier? Is there any impact on taking 1080P footage shot at 30fps and editing in 720P 60fps that I am missing?”
You can always create a 30P sequence after you highlight the digital SLR preset by going to the general tab and choosing 30P as your frame rate, which is what I would recommend.
Vince Becquiot
Kaptis Studios
San Francisco – Bay Area -
Thank you, so, you would set it at dslr 720p, select 24 or 60 fps and then change it to 30 fps in the general tab? Seems simple enough.
Can you share the impact or concerns around choosing 60 or 24 fps right off in the new sequence tab, just an opportunity to learn from you…? -
In a test I am noticing a ever so slight, smoother movement in the footage at 30fps-which is how it was originally shot….
over 60 + 24….
Is that correct or am I just imagining it? -
You want a sequence that matches your footage. The only exception is when you want to get slow motion. In that case, you could import 60P footage in a 30P sequence.
A 60P sequence should not affect playback, although it would affect compression at export time, since you have to compress twice the amount of frames. You would not gain anything else, unless you added 60P motion graphics or animation, which would be a bit more fluid.
A 24P sequence would likely create jitter in playback.
Vince Becquiot
Kaptis Studios
San Francisco – Bay Area -
Thank you! I am going to do it at 30 fps!
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Hi, I am shooting with my canon 7d at 1080p 24fps and 720p 60 which I then converted 60 fps footage in 24 to get slow mo. I should set my sequence at 24 fps 720p?? is that alright? the things I shooted in 1080 are going to be reduced to 720?
thank you!! -
You can either dowscale or upscale, I would keep what you have the most of at their native resolution. As for the 60p footage, you can bring it in and interpret it as 24p and you’ll get smooth slow motion.
Vince Becquiot
Kaptis Studios
San Francisco – Bay Area -
vince thank for your advice!! although I am going to shoot most on 1080p isnt it better to downscale it to 720 than to upscale 720? upscaling 720 to 1080 will not result into a deformation of the foorage in 720?
thank you again -
From your post, it seemed that most of your footage was 1080 except for the slow motion. If you do have a lot of 720P footage, then yes, keeping everything at 720 would be best.
Vince Becquiot
Kaptis Studios
San Francisco – Bay Area -
but if I upscale 720 to 1080, the image will not suffer deformation?
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