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DIY 4K Projector
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Zebra




Joined: 02 Jul 2020
Posts: 86
Location: NJ USA


PostLink    Posted: Thu Jul 23, 2020 8:36 pm    Post subject: Reply with quote


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BTW, what do you guys think about Barco's claim on their sales blurb on that ebay listing that the human eye can only recognize contrast ratios of 800:1 maximim?

I'm calling BS.

For one thing, it's defiantly going to vary with brightness. The difference between 800:1 on a 30,000 lumen projector and a 1000 lumen one is enormous.

More importantly, they're talking about the full on / full off ratio which isn't really measuring contrast. It's a measure of black levels and almost everyone can recognize better blacks on projectors with full on / full off ratios well beyond 800:1.
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digitalayon




Joined: 02 Mar 2009
Posts: 921



PostLink    Posted: Thu Oct 07, 2021 8:23 pm    Post subject: Reply with quote

This reminds me of college in 1997....A group down the hall in the dorms were playing with Fresnel lenses, cardboard, and black cloths while flipping tv's upside-down. They thought this blurry image was the coolest thing ever.
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