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Softness of light using Garware


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#1 Mathew Collins

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Posted 16 January 2017 - 05:44 AM

Hi,

 

I was assisting a cinematographer. I have seen lighting assistants inserting 'cutted' diffusion filters(two numbers) into the scrim holder of a Tungsten Junior. Filters are of the same size of the lights front opening. I could see 'Garware' is printed on the side of the diffusion role.

 

From my understanding from this forum,

there won't be a softness to the light in the above setup because diffusion filter is of the same size of the light's opening, but there will be a decrease in the intensity. 

Is my observations are correct?

 

Whats is a Garware?

 

Also he used Garware taped in the bandoor of 4 bank(4') Kinoflo. Apart of changing the 4 tubes into one source and decreasing the intensity, would there be any increase in softness of the light?

 

 

 


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#2 Mark Kenfield

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Posted 16 January 2017 - 09:07 AM

The beam from the fresnel will still be diffused, so the shadow quality from the light will be affected. But you're correct in that it won't really yield a much softer source.


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#3 David Mullen ASC

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Posted 16 January 2017 - 10:42 AM

Very mild effect in both cases. With the Kino, the area in front of the barn doors is slightly larger than the area of the tubes, and if you drop to one tube, you get the softness of the size of the front of the 4-banker so that's definitely softer than a bare tube.
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#4 Mathew Collins

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Posted 16 January 2017 - 06:49 PM

Thank you very much Mark and David.

 

Whats is a Garware and Gateway?


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#5 David Mullen ASC

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Posted 16 January 2017 - 07:54 PM

Never heard those terms on film sets.  Looking online, Garware seems to be an Indian company:

 

http://www.garwarepoly.com/company/

 

Obviously it would be pointless to search the word "Gateway", you'd get too many hits.


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#6 Mathew Collins

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Posted 16 January 2017 - 09:48 PM

Thank you very much.


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#7 JD Hartman

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Posted 17 January 2017 - 06:38 AM

Hi,

 

Whats is a Garware?

 

 

 

 

No state, country or hemisphere indicated in your profile. 

Was your observation made in the UK?  One of the former crown colonies, elsewhere?  That might have helped to identify the product and manufacturer. 


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#8 Mathew Collins

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Posted 21 January 2017 - 11:19 PM

 

No state, country or hemisphere indicated in your profile. 

Was your observation made in the UK?  One of the former crown colonies, elsewhere?  That might have helped to identify the product and manufacturer. 

 

Just added country. I am from India. My observation made in India.

 

 

http://www.garwarepoly.com/clear-film/

http://www.rgbspectra.com/gateway.html

 

These kind of sheets are used in front of lights. I don't know these are any industry standard materials or a low cost alternatives.


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#9 JD Hartman

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Posted 22 January 2017 - 11:39 AM

Can add much of anything.  Never used one their diffusion sheets or heard of the company.  The website doesn't seem to provide much information either.   http://www.rgbspectra.com/filters.html


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#10 Mathew Collins

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Posted 24 January 2017 - 08:33 AM

Thanks Hartman.

 

Could be those are low cost alternatives.


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