David Karger Posted February 29, 2016 Share Posted February 29, 2016 Hey everyone, I have a challenging shoot coming up and would appreciate advice from anyone who has tried something like this. I have to simulate a day interior time-lapse - basically just a room with shadows from a window pane and furniture tracking across the floor as if during an entire day. I can’t do a real time time-lapse because we only have the location for one day, and have no idea what the weather will be doing - plus we want more than one take per day. So here is my plan. I would appreciate any input with regard to how it can be improved, or whether it might even work at all: We are shooting at night, so as to control as much of the light as possible. I am renting an Arri M18 to be our sun, and putting it on a small crane which will sit on a Matthews Doorway Dolly. I am putting that dolly as far as possible away from the exterior wall I will be shooting the light through - probably around 25’. The exterior wall I am shooting through will actually be faked by putting up duvetyne walls with a small gap, into which I will place the window pane I am using to cast shadows into the interior of the room. I will balance the interior light and the “sun” by using some kind of fill lights inside the room - maybe Kinos or maybe tungsten lights with a little CTB to minimize the color differential between them and the HMI sun. I will create the moving shadows by craning the M18 up and down while dollying it across the floor. My plan is to add a small amount of atmosphere into the room with a DF-50 hazer, to try to make the sunlight streaming through the window somewhat visible. My biggest concern is making the M18 look like the sun inside the room, and not like a big spotlight hitting the floor or walls. I have experimented a little with smaller lights and it is pretty challenging to prevent this spotlight effect. I think using the edge of the beam to cast the shadows rather than the center of the beam may be helpful. But I would really appreciate any advice from anyone who has experience with this. Thanks for your help! Dave Link to comment Share on other sites More sharing options...
Premium Member Phil Rhodes Posted February 29, 2016 Premium Member Share Posted February 29, 2016 Whatever light you use, you'll need to ensure it fills the edges of the window frame you're projecting through. Often the shadowcasting abilities of a PAR are criticised, although it depends to some extent on the situation. If the M18 won't do that from 25 feet, consider something else. P Link to comment Share on other sites More sharing options...
Maximilian Motel Posted March 2, 2016 Share Posted March 2, 2016 What are your plans regarding the placement of the M18? Have you looked at the Sunseeker app? I probably wouldn't trust it for precise placements of the light, but might give you a nice starting place. Link to comment Share on other sites More sharing options...
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