Epson LS12000 4X Pixel Shift in 240FPS slow motion
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- Опубликовано: 7 сен 2024
- The Epson LS12000 projector has a 1080P panel, but has 4K upshift. To upshift it moves the pixels 4x to represent true 4K resolution. The refresh speed of the panels is 120Hz (HDMI 2.1) and the refresh rate of the 4K upshift is four times that at 480Hz. This video shows what your human eyes can’t see in 240 FPS slow motion - the pixel wobulation of the 4K upshift. This video is taken really close to the screen zoomed in on an Apple 4K HD TV icon. The camera used was on my iPhone 13 Pro.
I love your videos! I wish there were more slow motion videos from projectors. It helps with seeing the quality of light that our eyes and brain see
Do you notice any eye or health problems from the pixel shifting? To me it would seem bad for the eyes similar to flicker but perhaps its such a short distance it doesn't matter
I can't believe how bad DLP using normal light bulbs is, the colours pulsing like that, even if imperceptible has to have an effect. I avoid PWM monitors like the plague. Flicker with projectors is very interesting, all these technologies to make the projectors cheaper but they don't produce a stable, eye healthy image it seems. Jealous of the LS12000, I'd probably run it in 1080p if that stopped the pixel shift
I don't notice any issues from the pixel shifting. I can watch it for hours without fatigue. I sit about 11-12 foot away from the screen.
Is this a good thing? Continuity of motion vs frame rate seems to be at odds here. This would work better in print where bloom can be adjusted. I don't know if it'd work as well in motion
At normal seating distance our eyes can’t see this, and even up close it’s hard to tell what’s going on without slow motion. Most humans see between 60 and 80Hz and you can see in the 60Hz recording at the beginning of the clip it looks steady. To my eyes up close to the screen I can see that the image isn’t perfectly “calm”, but from the seats I cannot see this. The positive is that the pixel fill is much much better than a 1080p panel alone would be. There is no “screen door” gap from the pixel grid, and it looks a lot more like a native 4K display. This 4x pixel shift is a better solution than the 2x pixel shift on previous gen models like my Epson 5040UB.
How would you rate the LS12000 against the XW5000es?
The 5000 has better/deeper blacks. The Epson has more pop and brightness. The Sonys have a lot of PWM flicker. If you are bothered by that. The Epson has no PWM flicker. The Epson LS12000 has auto lens memory (shift and focus) for odd aspect ratios or for using with a cinema scope screen. The Sony is manual. The Sony will have a bit better motion for cinema, and a bit higher resolution, but the Epson should probably have the better lens (glass vs plastic) which should lead to less (probably) image defects. It’d personally pick the Epson based on the fact the Sony PWM flicker bothers my eyes. Thats a pretty clear disqualification of the Sony to my eyes. If the flicker doesn’t bother you, they will trade blows.
@@jvonengeln got it. Thanks Jonathan. I may just have to flip coin and make my decision that way.
@@scotttild I didn't say the Epson has better black levels than the Sony. Re-read my comment.