18fps super8 film shot at 1080i - how to correct flicker?

[blujosh]

if there is a more appropriate forum or sub-forum for this question, please let me know.

i have some documenation footage of a live performance which includes super 8 film projections (18fps) on a screen in the background.
the footage was shot with a GH2 at 1080i (60i).

i ingested the footage into FCP using the compressor setting for "Pro Res 422 for interlaced material".

the footage looks pretty good in the timeline but there is definitely a film flicker which i'm assuming is due to the inconsistency of frame rates between the super8 projection and the frame rate of the GH2 which was capturing the performance.

my question is, what can I do at this point, if anything, to correct or reduce the flicker, and what would be the best way to shoot something similar (scene that includes 18fps film projection) in the future using a GH2 (60i, 60p, or 24p)?

thanks in advance,

_jc

 

[kurth]

I'd try projecting the film at the same speed you're shooting the video, i.e 24, 25, or 30 fps. Then I'd slow it down in post , using your nle or using twixtor. You have more options projecting the footage at a frame rate that matches the video than you have shooting the video at a frame rate that matches the 18fps. As for what to do to correct the flicker already filmed ...I haven't a clue.

 

[Fresno Bob]

Could have been a problem with what shutter speed you chose.