Hi everyone, Is there any cinema expert? I would like to understand how modern cinema projectors work since I have never had a headache or eye strain while watching a film at the cinema. Are they laser projectors? Are they connected to a PC that reads a video file or do they have a reel like they used to? I would like to try a UST laser projector but since they cost a lot I would first like to understand if it is something similar to the cinema or not.

@"Lauda89"#p30495 Try Wimius S26 Cheap and no pwm. I tried others, and pwm suddenly appears.

@"Aquila"#p30496 It's Wimius k7 ?

The Wimius 9800 appears to be a UK-only model. I haven't yet found the U.S. equivalent yet. If anyone has that info, please post it here.

@"Lauda89"#p30495 I don't know much about cinema projectors, but some may use a 3-chip dlp. As for why its better in general, I think the light reflected from a projector screen will be unpolarised. Whereas with most normal screens you will looking at polarised light. I also wonder if the distance from the screen will be a factor, even if the screen is very large.

Sorry no 9800 but Wimius S26. I have it. No strain. ------------------------------ Proiettore 1080P LCD Nativo Wifi Bluetooth Portatile hdmi https://amzn.eu/d/0UTzZfw

@"Aquila"#p30516 Tried de Wimius s26, eye strain for me.

I'd say watch out for any new tech they use. I get strain and trouble focusing in anything that promotes a bigger screen and better sound (Vmax, Atmos) Usually the higher ticket price sessions. I've been fine will all new movies in the cheaper ticketed smaller cinema sessions. I do have wonder the systems software that plays back the movies. Guessing it'd be some linux thing that queues up movies, trailers and promotions.

I's like to get a short-throw projector (the Wimius S26 is a possible candidate) and a suitable screen. I would need to affix the screen to a set of shelves or to place a stand on my desk and to place the projector a stand, with the stand positioned behind me. I'm posting to solicit suggestions for selecting the screen (i.e. 40 inch or 80 inch) and for setting up the screen in the type of workspace I described above.

@"Seagull"#p30509 very interesting thoughts. thanks so much Seagull. insightful as always. I also wonder why I never feel sick at movies. however, I tried doing projector at home, and I did feel sick, not sure why.

Hi, Cinema projectors use either xenon lamp, laser or laser + phosphor light sources that bounce of specialized chips called DLPs (which are quite a piece of technology that was developed by Texas Instruments). It's extremely expensive equipment. And yes, after using one of those projectors for 8 hours (for color grading a movie i.e.) you get much less eye stain than using a monitor (however expensive it may be). Part of it is the distance at which your work, bounced vs emitted light, the ambient light conditions, and as far as I know a flicker free light source. They also support 12 bit color, P3 color gamut (without dithering!). Movies are loaded from specialized digital cinema servers encoded in a format called DCP (digital cinema package). You can feed them video with video cards that output 12 bit video via SDI connections. Most don't have an HDMI input.

Cinema projectors

Lauda89

photon78s Yes it is. Last week i tried the Nexigo aurora pro UST DLP tri laser and it was really bad for my brain.
The last option will be the 3LCD, so i will try the epson LS8000 and i will report back!

syssas

Lauda89 Hi. I'm waiting for Nexigo Aurora Pro. How would you compare this 4k projector with others? Did you try it on SDR (minimize FRC) and 1080p (disable XPR)?

Lauda89

syssas Hi! I used it with an old full HD fire TV stick on a wall and I was very sick..
For some reason at the cinema I never had a problem, so I thought the projector might be the solution but, apparently, the single DLP doesn't work well for my brain.

I will have to try a more cinema-like technology. Or maybe it's just a software issue, or maybe I'm relaxed at the movie theater whereas when I try some new device at home I'm very nervous, maybe that's also a key factor.

Lauda89

syssas
Let us know if it works for you!
In 2025 I want to try one of these three projectors:
Sony VPL-XW5000ES
JVC DLA-NZ500
EH-QB1000B

I am more convinced with the first two because the epson is not native 4K.

kgharvey

Hi I don't know if it will be useful for you but I can't tolerate most screens, phones, laptops etc but the XGIMI HALO portable projector is fine for me. I've been using one for years now.

syssas

@Lauda89 #p40630 Hi! I've already received the Nexigo Aurora Pro. Unfortunately, it causes eye strain. There are so many factors involved that I'm not even sure if it's just one, two, or more factors causing the eye strain. I've been able to work without issues with the Optoma GT1080 and the ASUS P3B, and I'm looking for a replacement for them that I can also use daily as a monitor. So far, any projector that uses XPR gives me eye strain.

The Nexigo supports both 4K (with XPR) and 1080p, but I didn't see much difference between the two in terms of eye strain, so I suppose it must also be due to the way the laser is handled (PWM between RGB lasers), the laser speckle, or the chromatic aberration. Maybe the speckle could be mitigated with a Fresnel screen, but they're expensive and I'm not sure I would be able to return it if it doesn't solve the eye strain.

I've also disabled dynamic blacks (in case there's some sort of laser PWM to reduce luminosity) and tried both 1080p@120Hz and 240Hz (1080p@60Hz is handled natively as 4K) in gaming mode/low latency (to reduce processing/FRC), but without success.

@kgharvey #p40616 Thank you. It seems that the XGIMI HALO is not using XPR, but it has a long throw ratio, making it not a good candidate for use as a monitor.

syssas

@Lauda89 #p40631 I can't tolerate 3LCD-based projectors (Epson). The JVC appears to have high input lag. The Sony might work, but I'm not able to use it as a monitor due to the long throw ratio. I'll keep looking and keep you posted. Thanks.

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