Light rays Lighting set up


Sgdevilzz

Senior Member
i have an upcoming video shoot that requires some lighting effects, light rays.

location is within a mildly forested area with trees of course. I'm planning to use Arri 650w with honeycomb grid. The problem is, the light stands. I need it to be quite high above as i require a wide angle shot.

My lighting Grip suggested to use a single C-stand but with dual gobo arm. One attach to the stand itself and the other arm to another arm. raise the stand to maximum height and tilt the goboarm, making it at least 5m high.

Any suggestions and improvement to my current setup?
 

Sgdevilzz said:
i have an upcoming video shoot that requires some lighting effects, light rays.

location is within a mildly forested area with trees of course. I'm planning to use Arri 650w with honeycomb grid. The problem is, the light stands. I need it to be quite high above as i require a wide angle shot.

My lighting Grip suggested to use a single C-stand but with dual gobo arm. One attach to the stand itself and the other arm to another arm. raise the stand to maximum height and tilt the goboarm, making it at least 5m high.

Any suggestions and improvement to my current setup?

5m sounds ok.

nt high enough call ladder gang
 

The only thing i'm afraid of is the power source. There's one nearby possibly 50 meters away. I only have 1 50m drum and i need to have 3 power plugs for the ambience light, fill and the fog machine. Thinking of using an extension multiplug but i'm afraid there will be a power trip if used for quite long.
 

The only thing i'm afraid of is the power source. There's one nearby possibly 50 meters away. I only have 1 50m drum and i need to have 3 power plugs for the ambience light, fill and the fog machine. Thinking of using an extension multiplug but i'm afraid there will be a power trip if used for quite long.

this is when a generator comes in handy.
 

Light rays are easy to create in post??!!!!
 

Light rays are easy to create in post??!!!!

Yes rodney they are, if the cameras are static. my setup is following my subject around, i would have to 3D track, create tree/subject mattes, create fake light rays and further tracking. lots of work! :bsmilie:

well as Christopher Nolan style, do as much on set as possible.
 

Light rays have distinct outline only when the light is scattered by suspended particles such as smoke, dust or water droplets.
 

Bamboo is right ... Alot of hollywood films using very special type of smoke particles to make sure its distinct ... at the same time, the smoke particles does not affect the filming and also doesn't look like 'smoke'.

Its not as simple as just having a big light with a huge generator ...

Environmental also plays a part ... If your place is pitch black, it might be easier to achieve the effect you want.
 

Bamboo is right ... Alot of hollywood films using very special type of smoke particles to make sure its distinct ... at the same time, the smoke particles does not affect the filming and also doesn't look like 'smoke'.

Its not as simple as just having a big light with a huge generator ...

Environmental also plays a part ... If your place is pitch black, it might be easier to achieve the effect you want.



i did mentioned i will be using a fog machine. Downside, i would probably waste half the tank covering the entire set
 

just out of curiosity may i know what the scene is like?

could it be possible to shoot tighter?

and also have a go at the good old fishing line infront of the lens trick.
 

is it a daylight scene? if so, I think you may have overestimated the power of a 650w Arri fresnel.
But if that's what you have, you will be good to go with 1kw petrol genset for the power source.
 

instead of hosting up, any chance of lowering it down?
 

Like dxn said, doubt 650 would be enough. I think you should try getting your hands on something much stronger....
 

THanks for all your inputs! Hmm.. Strongest i've got is the Arri 1000w. Will it be strong enough?
 

it's like asking 1000cc engine powerful enough?
If 1000cc engine on a bike, yes pretty powerful.... 1000cc on a sedan car....barely moves... there are too many variables...but yes, it 1000cc engine still can move a vehicle... 650cc engine also can do that, but may be struggling to do so...

You've yet to tell us whether you're shooting day or night, what's your intended field of view, object distance, your intended lighting & contrast ratio, etc...
It's hard for us to know what's in your mind....perhaps a storyboard or a representative drawing of your frame & composition will help.

Do your location recce and take a photo...

On a separate note, can anyone tell me this weekend 2475 will be first prize for 4D or not? I need to know... Thanks for all the inputs. :P
 

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