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Thread started 11 Apr 2016 (Monday) 12:04
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Diffusion Material?

 
James33
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Apr 11, 2016 12:04 |  #1

Looking for large pieces of diffusion material - need rolls to make large curtains, the wider the better but could probably work with 8-10ft wide on a roll so I could make multiple 8-10 ft tall curtains. Anyone done this before or found specific fabric that would work?

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charro ­ callado
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Apr 13, 2016 19:54 |  #2

I'm making big diffusion panels right now, actually :) www.rosebrand.com (external link) carries all the large-width diffusion fabrics you'll need.




  
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James33
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Apr 15, 2016 13:37 |  #3

Thanks!!!!


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Joker-USMC
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Sep 22, 2016 13:03 as a reply to  @ charro callado's post |  #4

I've been looking for similar material. Thanks for the link!




  
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Ramon-uk
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Dec 21, 2016 09:22 |  #5

if you only need a small quantity of diffusion material then buy a cheap waterproof mattress cover, not the PVC type but the one that is made from a fibre base with a thin plastic film covering. This gives excellent diffusion with a light loss of about 2/3 of a stop, also very little effect on white balance.




  
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SYS
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Dec 21, 2016 11:02 |  #6

Just get ripstop nylon, which is what I used when making a diffusion light panel some years ago.



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Pinto
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Dec 21, 2016 13:15 |  #7

SYS wrote in post #18219768 (external link)
Just get ripstop nylon, which is what I used when making a diffusion light panel some years ago.

This ^.




  
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Luckless
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Dec 21, 2016 17:35 |  #8

Ripstop nylon is a great material, but it does come with some minor catches that can be easy to trip up with if you aren't aware of them.

Namely it is the actual colour of them, how much it can vary from batch to batch, and how it can change over time. Things like optical whiteners are some of the 'most fun', which can do weird things and lead to 'blotchy' look if you're ever trying to use one as a rear-lit backlight. But the 'white' in the nylon can break down at different rates, and lead to subtle colour casts from different lights, and even new stuff from the same line can vary slightly from different rolls made by the same manufacturer.

So do remember to check your relative colour balance between each piece you get, and be careful when adding more or replacing some of your ripstop nylon with new material. And then remember to double check things before doing any 'big projects' if you haven't taken the time to carefully go over your gear in awhile. "White isn't always 'white'" is a simple little thing can end up being easily forgotten, and then leave you wondering why there is a slight colour cast on only part of a photo.


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Pinto
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Dec 22, 2016 11:13 |  #9

Luckless wrote in post #18220051 (external link)
Ripstop nylon is a great material, but it does come with some minor catches that can be easy to trip up with if you aren't aware of them.

Namely it is the actual colour of them, how much it can vary from batch to batch, and how it can change over time. Things like optical whiteners are some of the 'most fun', which can do weird things and lead to 'blotchy' look if you're ever trying to use one as a rear-lit backlight. But the 'white' in the nylon can break down at different rates, and lead to subtle colour casts from different lights, and even new stuff from the same line can vary slightly from different rolls made by the same manufacturer.

So do remember to check your relative colour balance between each piece you get, and be careful when adding more or replacing some of your ripstop nylon with new material. And then remember to double check things before doing any 'big projects' if you haven't taken the time to carefully go over your gear in awhile. "White isn't always 'white'" is a simple little thing can end up being easily forgotten, and then leave you wondering why there is a slight colour cast on only part of a photo.

Excellent point!




  
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JonKline
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Dec 24, 2016 11:44 |  #10

I've used plastic diffusion material intended for greenhouses. I see some online that's 32 feet in the narrow dimension!


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tdlavigne
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Dec 24, 2016 19:11 |  #11

Another vote for ripstop, used it to make a 6x6' diffusiun panel before. Can't remember the price but I want to say ~$7 yd at JoAnns Fabrics if you've got one near you.




  
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alexdavid63911
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Oct 07, 2020 11:35 as a reply to  @ tdlavigne's post |  #12

http://www.saaria.com/ (external link)
Provides better curtains than any other brand online and at the best prices, do check them they truly are awesome.




  
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ra40
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Oct 07, 2020 16:00 |  #13

For slightly smaller sizes using shower curtains and liners also work well. Home Goods, Bed Bath Beyond, etc.




  
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petrochemist
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Feb 06, 2021 12:07 |  #14

Not suitable for a large diffuser but I find tracing paper that's been laminated works quite well as a weak diffuser when shooting macro. Other laminated paper can work well for relectors & backgrounds (I tend to use fine wet & dry on one side to dull surface reflections)


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Wilt
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Post edited over 1 year ago by Wilt. (3 edits in all)
     
Feb 06, 2021 13:22 |  #15

Keep in mind the fact that cloth 'diffusers' do not completely eliminate hotspots in source lighting when only a single layer is used. That is why commercially offered softboxes often use double diffusion designs.

Decades ago, there were 4' x 8' frames from Lightforms and later from Photoflex that could hold open single-diffusion panels...you simply had to put your lighting far enough away and in the right location to avoid hotspots.


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Diffusion Material?
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