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Using Light grid to control the soft light (3 replies and 10 comments)

Vanniyan
4 months ago
Vanniyan 4 months ago

Dear master roger have you ever used light grid in front of your lamp or diffusion? I have been watching some gaffers work on Instagram pages. Most of the peoples using grid in front of the lamp. Is there any alternative way to control the light. Why some people's using grid and some people not use. Is it all depends the personal taste. Can't we give the same directional and controllable soft even light without using grid?

https://www.rogerdeakins.com/wp-content/uploads/2022/01/images-11.jpeg
Vanniyan
4 months ago
Vanniyan 4 months ago

Just now i have seen this lighting diagram on Instagram. Someone posted the detail. Did you really use negative fill? and light off the DiCaprio face from the left side what his diagram said.

https://www.rogerdeakins.com/wp-content/uploads/2018/10/IMG_20220123_000143.jpg
Roger Deakins
4 months ago
Roger Deakins 4 months ago

I don;t use the honeycomb grids to control the light because I feel they restrict the size of the source and make the light more directional.

That diagram is pretty much the way it was.

Vanniyan
4 months ago

He mentioned about face cutter. Did you use flag or some opel kind of diffusion for DiCaprio face?

Mike
4 months ago

Have a look at the diagram Vanniyan, it indicates diffusion panels on the side of the actors face. 

Vanniyan
4 months ago

Yes I know there was a diffusion. But I am talking about cutter. There is a bright light hitting in his shoulder and not his face. Some people's use to cut the light with flag. Some people's use Opel kind of papers.

Mike
4 months ago

The diagram does show the position of the ‘cutter’ but I think there is an additional bounce source on the left of his face or maybe a gold reflector, imo ofcourse!
What do you think?

Vanniyan
4 months ago

Master roger I forgot to ask one thing if honeycomb grid restrict the size of the source then source become little harder! Could you explain how it affect the size of the source?

Vanniyan
4 months ago
Vanniyan 4 months ago

Master if suppose you want more directional source what is your another way without use honeycomb?

dmullenasc
4 months ago

Softness is due to the size of the source relative to the subject - therefore the opposite is true when you want a harder more directional light.

dmullenasc
4 months ago

Roger has stated in the past that he sometimes uses a row of vertical blade flags when he wants to control the spill from a soft light, if that’s what you meant by “directional”.

Vanniyan
4 months ago

I.have seen lot's of gaffer working picture on Instagram. Some people's using compulsory honeycomb grid for large source. I am wondering if grid make again little hard source then why do they diffuse the light then fix honeycomb. If any honeycomb grid how much affect the size of the source and softness. For instance if make 10x10 size soft source and then i put grid. How much degree of softness decrease when I use the same size of the grid!. But most of the peoples goal to control the soft light spill. Here they think it's only control the spill not affect the softness of the light.

Mike
4 months ago

I think you will understand the process better if you actually erect your 10x10 and test your theories yourself. Switching your attention from the forum members advice
and Instagrams version can be very confusing. It is much better for you if you test yourself and then you will know which lighting method would be best suited for your project. There are many ways to light your subject, do you not agree?

dmullenasc
4 months ago

You have to set-up a grid and look at it yourself to understand what is going on with the softness and spill. Think about it. The softness is determined by the relative size of the source. If you put a honeycomb grid on the soft light and from the point of view of the subject, they see the entire soft light with no obstructions from corner to corner, then the softness is the same. If the thickness of the honeycomb means that from the point of view of the subject, the outer edges of the soft light are blocked by the grid, then that light isn't hitting them and therefore the light is not as soft. This is why some grids are designed to angle inwards on the outer edges so the light isn't being blocked. But this also has the effect of focusing the light even more so, meaning that it may be soft when you're perfectly centered with the grid, but as soon as you step forward or back, you get a lot less of the soft light. Or think of it this way, if the soft light is very close and the honeycomb is very close, then the thickness of the sides of the honeycomb blocking some of the light will be more obvious but if that soft light and grid was much farther away, then the thickness of the grid isn't as much of a factor. Think three-dimensionally.

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