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-   -   Cream&Sugar™ Ultra (https://www.hometheatershack.com/forums/diy-screens/44654-cream-sugar-ultra.html)

Harpmaker 04-28-11 11:54 AM

Re: Cream&Sugar™ Ultra
 

Quote:

e.mann30 wrote: (Post 434223)
Momma always told me that no question is a dumb question :) , so I would also like to know if C&S Ultra be used to make scorpion N? Sreen paint mix ?

We are still testing that out, but early results say yes.

giboni 04-28-11 06:08 PM

Re: Cream&Sugar™ Ultra
 

Wow
The DIY investigations on this forum are amazing. Many posters are part time Scientists ! Would your formulation
be a good bet for a 2;35 to 1 screen in this size. 300 inch diagnol. 9feet 8inch by 276 iches. going to use vynl flooring & Behr Premium Plus white eggshell latex enamel as the primer. take pictures of the images on the primer.
Then later with your solution. How much paint will I need ? Thank you in advance for your time. Ought to go back to the photos which Testing disc are you using?
John:clap:

Harpmaker 04-28-11 10:14 PM

Re: Cream&Sugar™ Ultra
 

Quote:

giboni wrote: (Post 434269)
Would your formulation be a good bet for a 2;35 to 1 screen in this size. 300 inch diagnol. 9feet 8inch by 276 iches.

Yes, but it should only be used instead of a white eggshell finish paint if you need the slight help C&S™ Ultra will give you when ambient light is present (although it is NOT a mix designed for use in ambient light). I would think that a white eggshell paint would have a bit more gain than C&S™ Ultra, but this hasn't been confirmed yet via testing.

Quote:

going to use vynl flooring & Behr Premium Plus white eggshell latex enamel as the primer. take pictures of the images on the primer. Then later with your solution.
I understand the reasoning behind this choice, and it might work out OK for you, but you will be painting the REAR of the vinyl flooring instead of the front, and the rear is some kind of paper material (be sure the backing doesn't have any kind of embossing or rolled texture to aid in holding glue as that would make it unsuitable as a screen). I really would recommend priming the back of the flooring with a real primer to seal it so it will not absorb excessive amounts of the coats of paint to follow. Any inexpensive primer would work. You might actually benefit from using Kilz Premium latex primer; this is a very white primer that actually has a sheen to it (some have even said it exhibited mild hot spotting) which might give a very similar image as the eggshell paint.

Quote:

How much paint will I need ? Thank you in advance for your time. Ought to go back to the photos which Testing disc are you using?
Your screen will have 222 1/3 square feet of surface. I like to plan on 1 fluid ounce total (all coats of paint added together) of paint per square foot of screen just to be safe, but this is far from a hard and fast rule. Most gallons of paint say they cover 250 to 400 square feet, but keep in mind this is only a single coat; most of the time you will have to apply two coats of paint (primer or finish paint) to get an even appearance.

You're welcome. :T

I use the standard definition version of the Digital Video Essentials calibration DVD for the 100% White Field and Color Bar images as well as the space shuttle, planet Earth and flag images. My favorite DVD for taking "screenies" (screen photos) is The Fifth Element.

Centurion 05-12-11 10:12 AM

Re: Cream&Sugar™ Ultra
 

New to the Forum, you guys are geniuses. I simply want to know/confirm that you can make the Elektra mix using the new C&S ultra right? Also I have a 100% light controlled environment and will likely be using a high lumen output projector I would say 1500+, I definitely want to have dark blacks, should I add the 2oz. of N6 ?
Thank you a million times over.

Centurion 05-12-11 11:54 AM

Re: Cream&Sugar™ Ultra
 

Quote:

Centurion wrote: (Post 436320)
New to the Forum, you guys are geniuses. I simply want to know/confirm that you can make the Elektra mix using the new C&S ultra right? Also I have a 100% light controlled environment and will likely be using a high lumen output projector I would say 1500+, I definitely want to have dark blacks, should I add the 2oz. of N6 ?
Thank you a million times over.

Let me add that the projector I am looking at is the Panasonic PT-AE4000U (1600 Lumens)

Harpmaker 05-12-11 02:12 PM

Re: Cream&Sugar™ Ultra
 

Quote:

Centurion wrote: (Post 436320)
New to the Forum, you guys are geniuses. I simply want to know/confirm that you can make the Elektra mix using the new C&S ultra right? Also I have a 100% light controlled environment and will likely be using a high lumen output projector I would say 1500+, I definitely want to have dark blacks, should I add the 2oz. of N6 ?
Thank you a million times over.

Let me add that the projector I am looking at is the Panasonic PT-AE4000U (1600 Lumens)

Hi Centurion, welcome to the forum! :wave:

Thank you for the compliments. DIY screens, and screens in general, are a hobby for us; but it's one we do take seriously.

To answer your question, yes the Elektra™ mixes can be made using C&S™ Ultra as a base instead of the old C&S™.

As to how dark a screen you need, we will need a bit more info to help with that.

1. What size screen are you making?
2. Are the walls and ceiling painted white or a very light color, or are they dark?
3. How far will the PJ be mounted from the screen?
4. What will the viewing distance be from the screen?

Centurion 05-16-11 11:35 AM

Re: Cream&Sugar™ Ultra
 

Thanks for getting back to me. Here is the additional information:

1) the screen will be approximately 110" Diagonal, 16:9 format
2)Ceilings are Black Walls are a dark brown color.
3) The projector will be mounted about 14.5' from the screen
4) the first viewing row is about 11' from the screen

Thanks again, I'm already excited!

Centurion 05-16-11 11:51 AM

Re: Cream&Sugar™ Ultra
 

Harp,
I figured I might as well give a few more specifics about my room. All paint is flat, so no reflection. Floors are dark as well, and absolutely no ambient light (basement). The seating is in direct line with the screen, so there should be no concerns with the viewing angle. By the way the projector being mounted at 14.5' from the screen is about as far back as I can mount it, plus or minus maybe 6".
When I saw the thread of the Elektra™ screen, more specifically the Batman opening scene with the buildings, the blacks looked amazing! so deep, that is what I am going for.

Harpmaker 05-16-11 08:20 PM

Re: Cream&Sugar™ Ultra
 

Thanks for the additional info Centurion. If you want deep blacks in the projected image the best way to do that is to buy a PJ that already has them and then build a dedicated theater to keep the screen protected from light pollution (which it seems you have done :clap:).

I'm thinking that you really don't need much help getting good contrast and black levels if you go with the Panny AE4000 or an Epson 8700UB in a dedicated theater with dark surfaces. Either use a white paint for your screen, or if you want to have a little bit of "black level insurance" you could go with C&S™ Ultra. If your heart is set on something a bit darker, the Elektra™ mixes can be made with C&S™ Ultra, but I would use the Behr N6 sample rather than the Valspar N6 sample paint because the Valspar sample is only available in satin finish which might make C&S™ Ultra hot spot a bit.

kadijk 05-16-11 10:52 PM

Harp, a quick question. We have discussed this on the development thread already but I was wondering if you have gotten around to formulating the C&S Ultra with paint one could get at Home Depot. My situation is almost identical to Centurian's and so your comment about the valspar paint maybe hotspotting got me thinking. Or is that only in regards to the darker mix( Electra)?


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