Posted 06 October 2008 - 11:45 PM
I am shooting a spec for a guy and he is abuilding a set (attached image) qhich has three walss 20ft wide by 12ft high.
The walls are made of plexy glass and the plan is to backlight them evenly....thats the plan but now reality is this...
Between the set walls and and the stage walls I only have 4.5ft of separation and I am trying to figure out how ti light as evenly as possible this walls...
I have been bouncing through diverse optitions as Kino rigs (I would need a lot of them), Luma Panels (need to see how much it would cost) and cyc lights from mole...now this last option ins interesting, not ideal but may be cost effective (need to check price).
If I put a bottom line and a top libe of cyc lights I would get a good exposure (even though not even) on the walls high enough to bring everything to "almost white"....
Adding to this I want to shoot at a T4 and this units backlit at asa 125 would give me this for sure....
the reason of 125asa is that I am using 500 asa stock but we are gona shoot 96fps and possible 120fps and I want to light to a lower asa for t4 so I dont need to change my stops base on the fps and jsut work with ND on camera....which brings another issue..
working with cyc lights coming through the diffusion wall may cause a problem with flares (Primo zoom 17.5 to 75mm is the lens used) so this brings me back to a fluorecent plan but...planning still..
the other option with the cycs to to hand on the stage wall 20*20 white rags and light that so its glowing through the glass an avoid direct hits and glares...now not sure if I will get enough exposure because the plexy is milky white semi translucent...
any ideas would be more than great!
Thanks a lot and best
Posted 07 October 2008 - 04:06 AM
Was looking at skypans but not sure if they will do the job with only 4.5 of distance and scpecially if I want toa void the hotspot of the fixture behind it...
as well i can hang them but the falloff is huge to the bottom in that case...
any suggestions regarding them?
Posted 07 October 2008 - 05:37 AM
May shoot them directly at the white plexy or shot them at a 20*20 silver on eaach wall and spot reading should get about a T8...gona put them vertically....
Posted 07 October 2008 - 08:16 AM
Posted 07 October 2008 - 02:02 PM
thanks for your response.
Yes I am looking at Kinos for the safe film speed thing.
any other suggestions in tubes?
I had a couple bad expericnes with florecents even at safe speeds....
Posted 07 October 2008 - 07:00 PM
I forgot to mention I used a bounce material that was a little bit glossy. I didn't need perfectly soft bounce since it was going through a heavy diffuser anyway and the little extra output helped some.
Edited by Chris Keth, 07 October 2008 - 07:02 PM.