Input needed for DIY screen mix ...

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Joe,

As advised, UPW is an excellent place to start. For most and a projector of your quality that would be more than enough. But, you want more. You want CRT blacks...without a CRT.

All digitals, even the mighty Sony Ruby, have light spill. Hence, the effort to combat said with commercial screens such as Grayhawk, Firehawk, Graywolf and the like. DIYers fight back in similar fashion, mostly by altering their paint formulations.

Now, comes the tricky part: Choosing the suitable adjustment.


So many here have charted their own course. Chances are, you will too. By this I mean no one here offers a more perfect fit for your setup, rather a solution that works well for them. So, experimentation on your part is almost mandatory.


Naturally, each of us probably prefers his solution best. And, for good reason. It looks best to us for our particular setups.


A great place to start learning is gambit's FAQ sticky at the top of this forum. (Hopefully he still updates with all the new efforts as of late)


Best wishes.

RS-MaxxMudd Lite will roll wonderfully, and will most certainly give far better contrast enhancement than UPW by far.


The 79 is no slouch in the CR department, but like the Z4, depends on the use of it's specific Contrast enhancement features. unfortunately, things such as Iris Adjustment, Black Level Enhancement, and Black Stretch all serve to dull an image, and often crush down whites and colors.


RS-Maxx does not. It's easy to assemble from readily available components, and is/was the standard than most all of the current Ambient Light Screens got their inspiration from. It's now not the very best application for enhancing CR, but for a PJ like the 79 in a light controlled environment, you don't need such extreme measures.


Do a Archives search for "The Effort Continues" thread, or do likewise under my handle with "Threads Started by...." and you'll find it easily. Also look to the RS-MaxxMudd Q&As thread. And by all means do visit the sticky on top the DIY Forum Thread page.


Good luck.

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RS-MaxxMudd is a "Mix" applied as a paint. The only other step to be considered would be the need to prime a wall. Now then, what is your thinking about why you feel you must consider a Mfg. Screen over a well done DIY application?

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Of course, the use of a ND Filter will help on a pure white surface. So far, anyone who possesed a ND Filter who has used RS-Maxx has ceased using it altogether. In no way can or will Lamp Black added to UPW result in the performance the RS-MaxxMud can provide. To get that degree of Contrast enhancement out of LB & UPW that RS-Maxx can provide without crushing an image's values, the ratio of LB to UPW would have to be so high as to effect those undesirable traits. However, the addition of a small amount of LB can only help UPW along those lines. You just cannot reach an optimized situation.


A controlled use of the CR enhancement Silver offers, mated with the flattening effect of UPW, Matte Poly, and a brightening boost from the Pearl is what makes such increases in CR happen without caveats.


..................but a Mfg. Screen?