d7100 1080 60i: Anyone using this successfully?

homestar_kevin

homestar_kevin

Well-known member
So one of the things I've only tried a few times with my d7100 is using the 60i to get slowmo similar to how the c100 guys do it.

I've only tried this out when I've had some time through the months.

I've always done it after I've gotten my coverage in other frame rates and just tried this mode out again yesterday.

I set everything up and put the shutter to 1/125.

I haven't been able to get get a clean image this way.

My workflow in FCPX has been to have a 1080 24p timeline and drag these clips onto it, then retiming the clips in the timeline to 50% speed.

I'm posting an example of the blocking and really bad quality I've been getting.

I'm curious to know if this is anyone else's experience?

Is there a better workflow?

Am I missing a step?


Also, yes, that is me, and you're welcome :thumbsup:
 
Also, the uprezzed 720 60p looks really really damn good to me, so I might just go with that .

Look how much cleaner my moves get.

 
Just guessing -- I would guess the problem is that you're trying to insert a 1080 60i (interlaced) clip into a 1080 24p film. Don't think they typically match well, and slowing the frame rate is only half the problem (the half that's easily solved).
 
I hate the deinterlacing workflow issues so much, that I would just stick to 720p60 even if the end result was slightly softer.
 
Yeah, I mean I'm assuming it's an issue with my workflow.

The 720 60p is good enough for me. It's looks so much better than the canon DSLR 720 60p.

So it's nice to have that as a usable option
 
Retiming to 50% speed isn't appropriate for 60i anyway, for a frame-to-frame timing. 40% may smooth things out better. But it's the interlaced issue that makes it all a mess, I used to do this with my (SD) DVX100b, but it was just so damn soft.
 
There's nothing wrong with dropping a different frame rate into a timeline set up for 24p if your going for slow motion. this is exactly what you NEED to do. The issue is you shot in Interlaced. 60i means you get 60 frames, but they're interlaced, meaning each frame is made up of the previous frame and the next frame, so you get horizontal lines during movements. Basically, 60i = 30p. Always shoot in progressive unless you are broadcasting straight to TV or using the camera as part of a multicam switcher production that requires interlaced footage.

Unfortunately the D7100 doesn't do 1080 60p, only 720 60p, but you should still be fine dropping 720 into a 1080 timeline (might not be ideal, but if you want to be idea, go buy another expensive camera. we all have to deal with stuff like this because we're not all rich and not one camera fits all needs). So if most of your footage you shoot is 1080 24p, but your slowmotion stuff is in 720 60p, drop the 60p footage into the 24p timeline, then click the icon to the right of the clock on FCPX that looks like a swirly arrow. there should be an option in there for conforming time, just set it to 'conform' or whatever they're calling it now in the newest update. it will basically conform your footage to whatever it needs to be to playback smoothly in your timeline. in your case, it will turn the 60p footage down to 40%. if you dropped 60p footage into a 30p timeline and conformed it, it would change it to 50%.
 
I've been very happy with the 720 60p on this camera, but was excited about the 60i to use it as the c100 crowd does.

That camera shoots 60i that people are using this workflow to get usable 24p slow mo, so my questions was why does that not work on the d7100?
 
My question is why does this work on the C100? It's strange. It shouldn't work getting 50p from 50i interlaced. But on the C100, people are getting perfect results, even Philip blook pointed it out in his review.


If that trick exists on the C100, why shouldn't work with all 50i cameras? Or if the trick doesn't exist, why does it work on the C100?
 
Yeah, that's pretty much why I was disappointed the 60i in the d7100 didn't work the same way.

Oh well, you only get 60i in the additional crop mode anyway and the 720 60p is nice and clean, even uprezzed
 
I'm using only Sony Movie studio 13 platinum suite and it has the BCC upres. You set the frame area to 1980 x 1020 in the video event, and then use the plug in to up rez it, save and import into your project - very, very good slow motion in a 30/24 time line IMHO.
 
I have not messed around with the 1080 60i anymore.

The 720 60p is more than good enough and I haven't even used that much lately.
 
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