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  1. #1 help with shooting paparazzi scene 
    Senior Member Paul Russell's Avatar
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    hi

    I wonder if anyone can help with the answer to this puzzle

    I will be shooting a music video in a couple of weeks that will require a paparazzi scene. Lots of flashes going off.
    To complicate it, we will be shooting at night and the director wants slow motion (probably shooting at 50fps for a 25fps deliverable).

    But I don't want to get any rolling shutter tears in the footage. Would I be correct in assuming that a fast shutter speed (say 90¯°) will be less likely to attract the rolling shutter half-exposed frame effect?
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  2. #2  
    Senior Member Akin A's Avatar
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    You can try adding simple camera flash VFX in post if you're worried about potential tearing/shutter issues.
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  3. #3  
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    Quote Originally Posted by Paul Russell View Post
    But I don't want to get any rolling shutter tears in the footage. Would I be correct in assuming that a fast shutter speed (say 90¯°) will be less likely to attract the rolling shutter half-exposed frame effect?
    If anything that will hurt matters! In theory you want to be increasing your exposure time, not decreasing it, although in practice I've not found 360° shutters to help matters much. Stay at 180°, and if you have a Motion Mount there are a 2 modes that should reduce strobe tearing (soft shutter or square shutter).

    Without a motion mount you're limited to trying to find practical flashes/lights with a longer duration than a standard camera flash. I did a quick & dirty 'slo-mo paparazzi' setup a while ago with a couple of 2k tungsten lights run through a dimmer, then pulsed on and off. Then a bit of keyframing in post to punch up the effect, and voila:
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  4. #4  
    Senior Member Daniel Reed's Avatar
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    your only solution to aquire this in camera is to rent/buy a motion mount - or add the flashes in post
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  5. #5  
    Senior Member Paul Russell's Avatar
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    After some discussion with the Director it's been decided that they'll add the flashes in post.
    Thanks for the advice, guys.
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  6. #6  
    Senior Member DC Chavez's Avatar
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    Thats basically what the motion mount was designed for...
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  7. #7  
    Senior Member Paul Russell's Avatar
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    out here in the third world there's rarely a budget for stuff like that, let alone a rental house that will keep one.
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  8. #8  
    Senior Member Ulf Krentz's Avatar
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    Paul, if you´re on DSMC (not weapon) and have a SH you might trigger a flash from your camera using the sync port of the SH and a dedicated button mapped to "Strobe: trigger". That works fine and might add some more reality, but for whatever reason it is limited to a shutter speed set to 1/75 or longer.
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  9. #9  
    Senior Member Paul Russell's Avatar
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    Thanks, Ulf. I was considering that, but they want a bunch of flashes, so there's no one one flash that I could sync to without the others causing the problem.
    Stiil, they've opted for the best route given the budget, which is always very tight out here.
    Cheers.
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  10. #10  
    Senior Member PatrickFaith's Avatar
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    About half way through the Christopher Probst - Eminem video their is a chase sequence that I have studied in detail. http://www.reduser.net/forum/showthr...er-Anamorphics

    Video is on youtube : https://www.youtube.com/watch?v=oeCihv9A3ac ... note the 33 million views.
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