Slow Motion 1080i???

beno

beno

Well-known member
I used to do the 60i trick on the PAL dvx all the time. Now I have a HVX and I capture straight to FCP because I only have one P2 card and it's quicker than keep off loading.


so I have to shoot in 1080

But when I shoot 1080 footage, slow down to 50% and deinterlace, it doesn't look super smooth liek the stuff on the dVX I used to shoot... what's going wrong here?

I searched the forums and most people are of course using the 720... why isn't the 60i trick working, should I just shoot 720 for slow mo and uprez?


:)
 
it should work. make sure the NLE isnt "Resmapling", also, 720-60p will give you better resolution anyway.
 
I may be wrong, but I was under the impression that even though the HVX is 1080i it actually captures both interlaced fields at the same time doesn't it?

Isn't that how it makes 1080p by merging the two identical fields into one whole progressive frame?

So slowing to 50% and then de-interlacing the footage will effectively doing the same as if the source were progressive to start with. . .

Or am I wrong, is the 60i, true 60i with each field containing different data?
 
The HVX captures at 1080-60p, then reduces each frame to a field for 60i. If youre shooting 1080-30P its 1080-30P with 30 frames layed into 2 fields. 1080-24p is layed into a 60i stream in 2:3 or 2:3:3:2 pulldown.
 
TimurCivan said:
The HVX captures at 1080-60p, then reduces each frame to a field for 60i. If youre shooting 1080-30P its 1080-30P with 30 frames layed into 2 fields. 1080-24p is layed into a 60i stream in 2:3 or 2:3:3:2 pulldown.
Click to expand...

Ah ok, thanks for clearing that up for me Timur. . .Still got alot to learn. . .:)

So you'd have to end up with a better end result by shooting 720-60p and then uprezzing.
 
thanks for the advice. Much appreciated.

I "have to" shoot 1080 because I'm capturing to a mac book which can't capture 720p (in FCP 5.1.2)

the slow motion I could get out of my DVX was perfect.. http://www.3030recordings.com/videos/misc/DSHS_clouds.mov

Infact I don't like the HVX as much as the DVX for many things... P2 has me loosing more footage than mini-DV ever has. The LCD is utter ****. The focus ring is stiff and harder to operate but requires more control. And getting HVX to look good when down converted is nie on impossible.

Getting my SG pro at the end of the month and I bet I'll be using more DVX than HVX from now on, at least till I find a decent onboard monitor.
 
P2 never loses a single frame. If you're losing footage, there's something wrong with your workflow.

The LCD is the exact same panel as on the DVX100B.

And why are you having trouble getting the HVX to look good downconverted? It looks simply brilliant when downconverted...
 
just a couple of times we've been logging P2 and then when we come back to look at it a file or two is corrupted, one time we bumped a hard drive and lost a full days shoot.

It's probably down to our work flow, but I never lost a second on mini DV.

The LCD on the HVX is MUCH worse than the LCD on the DVX, no?

As for down converting, I'm talking about mpeg 2 for DVD, I can never get the colours to look as good as it does in FCP. I've tried many many ways and the best one I have found is compressor in 90minute best with dolby 2. Still the quality loss is worrying.
 
Ahhhh

thats not the fault of the P2. thats the HDD issues.

You haveto get used to making RAided Double backups. Its part of the beast of HD workflow.
 
beno, BitVice will give you better MPEG2's than compressor as it's encoding is better.
It also has a default option to encode with a 2.2 gamma, which compressor doesn't.
I basically have the same looking image running on my Mac, and on my TV via a BitVice encoded DVD.
I tend to downsize my 1080 or 720 HVX footage to DVCPro50 using Shake and Lancos filtering for best results. This keeps the gamma in the same codec 'family'

BitVice creates seperate image and audio streams which I drop into DVD Studio pro, and hit burn. It jumps straight to muxxing, and then burning.

Top quality.

http://www.innobits.com/
 
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