this post was submitted on 17 Apr 2026
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I downloaded the movie after seeing it in theatre to once again enjoy it from the comfort of my home. Seeing 2160p, I thought it's going to be a webcam rip but the title says webrip. Where is this leaked from that has Dolby Vision on a movie still in theatre?

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[–] PolarKraken@lemmy.dbzer0.com 3 points 2 days ago (2 children)

Would that be like on a tripod in the audience area recording the screen? Seems lossy somehow so I figure I'm misunderstanding. I'm pretty ignorant (~fully ignorant lol) about this, apologies, ya just piqued my curiosity.

[–] bort@sopuli.xyz 8 points 1 day ago (1 children)

Would that be like on a tripod in the audience area recording the screen?

yes.

Seems lossy somehow

it is! but that's where Shannon sampling theorem comes in. The sampling only needs to be twice as good as the source, and then you can reconstruct the source perfectly. (with some assumptions, e.g. correct color gamut, focal point, etc.).

[–] PolarKraken@lemmy.dbzer0.com 1 points 1 day ago

Ahhh nice! Familiar with that via aliasing below Nyquist frequency, different words for the same idea.

[–] Trainguyrom@reddthat.com 3 points 1 day ago (2 children)

Would that be like on a tripod in the audience area recording the screen?

Fun fact: this is how films get digitized, they play the film in a tiny movie theater just big enough for the camera. The whole apperatus is about the size of a washing machine

[–] quips@slrpnk.net 3 points 16 hours ago

One of the ways…

[–] PolarKraken@lemmy.dbzer0.com 3 points 1 day ago (1 children)

Wtf lol, that just seems so...low tech? I certainly can't think of a "better" way to do it, guess I imagined some fully enclosed (or maybe that's what you're describing).

It's like finding out almost all power generation is really just different ways of boiling water lol

[–] filcuk@lemmy.zip 2 points 17 hours ago

Scanner is technically the same, it just bounces light off the object, rather than shining through it.
Hell 3D scanning is pretty cool and what I'd consider high tech, but it's still just bouncing waves off things and recording those!
I guess there's no escaping the universal fundamentals, or the limits of our technology at least