I want to make sure I am doing this the right way and this is the best way to do this.
I was handed some footage.
The main camera was shot in 30fps
The second camera was shot in 60fps.
I dropped the first clip, which was from the main camera, on a sequence and it asked me if I want to changed the settings to the clip settings? I clicked yes and the sequence changed to 30fps 1920 x 1080.
It was a 4 second clip. I want to slo mo it. Here is what I did.
1- I right clicked on the clip in the timeline.
2- I hit Speed/Duration
3- A pop up box came up.
4- I changed the speed to 50% (it's now 8 seconds)
5- I then changed the interpolation to Optical Flow.
5 - I rendered that clip o the timeline and played it back.
Yes, from the timeline in Premiere Pro, that's how you do the slow-mo.
As for changing the sequence to 1080/30, that depends upon what you wanted for your final product. If you want your finished work to be 1080/30, you're all set.
Dell Precision T7600 (x2)
Win 7 64-bit
Adobe CC 2017.1 (as of 8/2017)
256GB SSD system drive
4 internal media drives RAID 5
Typically cutting short form from UHD MP4, HD MP4, and HD P2 MXF.