Paint outperformed many of Da-Lites materials in my test. - AVS | Home Theater Discussions And Reviews
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post #1 of 6 Old 10-10-2001, 12:23 PM - Thread Starter
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I performed a test under these circumstances...
blinds open on a cloudy day but still pretty bright.
projector: 750 lumens XGA LCD
Test material : Mission to Mars

Tested several Da-Lite material against my DIY painted screen(Behr Ultra White Satin)

The following did not perform as well as the painted screen under these conditions in my room (take into consideration the ambient light hits my screen at a certain angle that is unique to my room so everyone will not have the same results)
(what is 'did not perform as well'?...black levels, detail color , level of wash out),
Matte White
Cinema Vision
High Contrast Da-Mat
Dual Vision
Super Wonder Lite
Da-Tex

The following were only a hair better than the paint in level of washout, however colors and blacks were not as good.,
Glass Beaded
High Power

This one performed about right on par with the paint but had less washout.,
Video Specta

This one performed better than the paint in every area, not by a mile or anything but noticably better.,
Perlescent


I'll be keeping the painted screen because I don't think any of Da-Lites materials perform all that much better in ambient light conditions.
Using these fabrics in a dark room is another story as they do perform much differently...still I enjoy the performance of the paint over spending money on any of these materials.


This is just my opinion.


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post #2 of 6 Old 10-11-2001, 09:21 PM
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Ahem...

As Obiwan said.. "there is another...."




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post #3 of 6 Old 10-12-2001, 04:05 PM - Thread Starter
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Quote:
Originally posted by KBK:
Ahem...

As Obiwan said.. "there is another...."


Please finish the line , I am not a big Star Wars fan.



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post #4 of 6 Old 10-13-2001, 01:01 PM
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You missed probably the best DaLite screen they make, the Highpower. Unfortunately, none of the screens you tested are retro-reflective - meaning the light doesn't return down the same path it took from the projector lens. Most low gain screens aren't retro-reflective and seem to wash out the image in ambient light conditions.

I had a painted white wall with lower light projectors (a 400 and 1000 lumens), and there is no comparison in detail and brightness with the lights on, wherever the source in the room. Most screens and paint relect light equally from all angles, washing out black level and color, and scattering the light. You will notice a major improvement with a retro-reflective design, especially on lower light output projectors.

Give DaLite a call and have them send you a sample.

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post #5 of 6 Old 10-13-2001, 01:04 PM
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I just noticed that you did have the highpower screen sample on your list. If you are able to, look for a store or friend with a full size screen. I have read other reviews similar to yours from the samples.

The retroreflective design really does help reject light from side sources.

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post #6 of 6 Old 10-13-2001, 03:39 PM
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James,

As you stateed, you are a do-it-yourselfer (as referring to your D-I-Y speakers ad). It is no wonder the paint looks better on almost all of the fabrics! It wouldn't have mattered if you'd looked at 1000 screen types, the piant would have won regardless.

I understand you post-scripted it as your opinion & one screen looked marginally better.

However, innocent disclaimers after a biased conclusion still can be manipulative to others whose guard is down.

Bias is a horrible thing. The D-I-Y bias and the cost factor thrown in at the end are difficult to gloss over.

Not to flame you, but experimental design and statistics devoured a portion of my academic life and sometimes, as innocent as your experiment & honest opinion were, that bias bug gets me a typin'.

Jeff

Sorry for venting but it is important for those who read your (or anyones) views understand ones biases. After that, a truer perspective can be taken for ones opinions

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There are more than a handful of [op amps] that sound so good that most designers want to be using them as opposed to discreet transistors. Dave Reich, Theta 2009
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