HOWEVER. 
In addition, one of the biggest factors influencing what you see as image detail and sharpess is contrast. Small differences in image detail which are obvious when examined close up become insignificant or even invisible when you sit back to enjoy a movie in a typical theater set up. I honestly found it such a distraction in dark scenes that I've gone back to a 1080p projector. Consider what you experience when you see an image from a high-end DSLR on a TV or computer monitor or phone or tablet. But at the end of the day, both the level of digital noise and the projector's contrast have more impact on one's perception of the sharpness and the ability to resolve detail on these two projectors than does the physical resolution of their chips, which is a non-issue. Fortunately, the 1080-line to 2160-line conversion on most TVs and projectors today is excellent, aided by the fact that it's a simple doubling. Let the buyers and sellers beware! At this point the physical resolution of the chips in these two models has nothing to do with perceived image sharpness. However, at the same time, the hair detail in the Scarlett Johannson close-ups appears to be better defined on the UHZ65. Heres a quick guide to HDMI cables for 4K resolution formats :Basic 4K less than 10-bit colour, no HDR =10.2Gbps.Standard 4K 10-bit colour, no HDR =11.1Gbps.Advanced 4K 10-bit colour or higher and HDR =18Gbps.You can find out more about home cinema cabling in detail in ourcabling guide.Finally, check out a range of4K projector screensto complete your setup and ensure that none of the details from the image is lost to visual noise created by screen material structure of non 4K screens such as standard matte white. What is questionable is the life of the XPR module, aside from the noise it makes. Well come back to why this distinction matters.Resolution: 4096 x 2160 pixelsTotal pixels : 8.8 millionNot to be confused with : 4K UHD resolutionPrice : Upwards of 5000Currently, only projectors from Sony feature a native panel pixel count of 4096 x 2160.Every Sony 4K SXRD Home Cinema projector from theVPL-VW270ESto the laser light sourceVPL-VW790ES delivers true 4K images with a native resolution of 4096 x 2160. Since "4K" is all about resolution, it is not surprising that so many folks have been preoccupied with native 4K vs. pixel shifting 4K, and debating the merits of each. If youre watching a BluRay in 4K quality, the difference between the quality of resolution of the image produced by a native 4K projector and a pixel-shifting 4K UHD resolution projector is arguably negligible apart from when it comes to small intricate details/text in the image then native 4K wins hands down. The term "4K projector" is open to any of several interpretations, and there is no chance of a consensus--it is an emotional subject for a lot of folks.
Evan, Fantastic real world review. This constant jump would make pixel structure less distinct. Time and time again weve been surprised by new models and the seriously impressive images they can achieve.When you take the steep price difference between these models and the native 4K alternatives, into account, its really worth giving them their dues.Resolution: 3840 x 2160 pixels (achieved through pixel shifting)Total pixels: 8.3 million, Not to be confused with: Native 4K DCi resolution. It uses four-phase pixel shifting to create 8.3 million pixels. In this case the UHD60 is higher in contrast than the UHD50, and in many scenes this contributes to the perception of it being the sharper of the two projectors. Now, let's back up to a more practical viewing distance. Sure, good contrast comes from other things too, such as the light source (type, efficiency, etc. Then Texas Instruments released an 0.66" 4K UHD chip with a physical mirror matrix of 2716 x 1528 which uses two-phase pixel shifting to create 8.3 million pixels, which is 4K UHD. In reality, pixel shifting has produced rapid advances in picture resolution at prices far lower than you must pay for projectors that have native resolution 4K chips. But also the level of digital noise, the image enhancement video processing, the color balance and saturation, and the optical precision of the projector's lens, all contribute to making a 4K projector's picture great or less than great. And at this distance, the pixel structure of the two projectors is obviously different. The original 4K signal is first down-converted to much lower HD resolution before being fed to each HD image panel. It's well organized, well written, objective, and well supported with concrete examples. The bottom line is if you're happy with the large home theater image you have regardless of tech, who cares. If I couldn't afford a native 4K projector--and I can't--I'd be absolutely delighted to spend my days being full of horse malarkey and enjoy the benefits of 4K HDR content on a pixel-shifting projectorwhich I do. Yet if you're looking at such images on anything other than an actual print, you are looking at a finite number of pixels equal only to what any given display can reproduce. projectors Is there is any visible difference in image sharpness? projectors shift :)..jpg)
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Meanwhile, contrast is of utmost importance. projector disadvantages optoma projector laser 4k projectors sponsoring epson classroom wish thank america report And this is a huge however - the Epson HC 4000 is much higher in contrast with much more solid black levels than the PX727-4K. Epson followed using pixel shifting on 1920 x 1080 3LCD chips. Dont the mirrors move and pixel on/ off color changes have to fire 4 times more than a native 1 to 1? All of these 4K projectors regardless of chip type are able to create images in a class that is legitimately understood as 4K resolution. But hey ho I don't think it would be something the manufacturers would reveal. And in this regard the UHD50 tends to edge the UHD60 with an overall lower noise factor. You get maximum benefit from 4K projectors when using them on 100" or larger screens, depending on your viewing distance. Thus, in theory, if the number and size of discrete pixels has anything to do with it, the VW285ES should be able to resolve more detail than the UHZ65, assuming the three chips on the VW285ES are perfectly aligned.
Jim, After studying the operation of the XPR module with its pixel shift to achieve an apparent resolution of 4K, I think that the micromirrors cycle of the DMD chip is the same as in FHD.
Once again, the big issue is contrast - the UHZ65's 4K HDR picture is substantially brighter and noticeably higher in contrast than the VW285ES. And more recently, what is all this were hearing now about True 4K, pixel shifting and upscaled 4K? Thanks again.
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The revolution began with JVC's introduction of pixel shifting in 2013. lightest projectors While this used to be a hugely important spec in the projector business, it is no longer an issue of consequence in the world of pixel-shifting 4K for home theater projectors. 1999-2022ProjectorCentral.com | 7/29/2022 9:57 PMPST. Lee, you are referring to a known engineering feature of at least the 4K DLP DMDs that causes this false dark frame around the image. I bought my dad an Epson 5040UB last year and I recently bought an Optoma UHZ65. Understood-people have complained about it for years, but the alternative would be to go with a more current 4K DLP where it's not as obvious or a 4K three chip projector. Pixel shifting was and probably still is used as a con game to convince people to buy a projector they thought they were getting instead of what they were actually getting. uhl55 optoma projectors And even in home theater, if you have a much larger than typical screen and you like to sit in the front row of a movie theater, the incremental picture resolution from a native 4K projector may be visible and relevant to you. 720p to 4K conversion (as you might experience coming from a cable box on certain channels) is more complex and not always quite as clean, though most set-top boxes will perform a conversion from 720p to 1080i or 1080p before sending it to the display -- probably with worse results than if you let the display do it. Thats over 8 million separate pixels, giving four times the detail of Full HD.While some other brands of projectors are advertised as being 4K capable or True 4K, they actually use lower-resolution 1080p or 2K panels.
Move up close, however, and you can see pixel structure.A picture generated by either the 4K DLP chip or by the 3LCD 4K-enhanced models will certainly appear higher in resolution than a standard HD 1080p picture from a distance of 1.3x the screen width. They followed that with an 0.47" DLP 4K UHD chip which has a physical mirror matrix of 1920 x 1080. On a 120 screen sitting 9-10ft away, the resolution increase of my Epson 5040UB compared to my older Panny PT-AE8000U was very noticable, and worth the upgrade. While I prefer the latter definition myself, what I care more about is that buyers come to realize that the differences in detail resolution between all of these various 4K implementations are extremely trivial compared to the major issues of contrast, brightness, color balance and saturation, and image stability and clarity that ultimately define the greatness of a home theater picture. That holds for all 4K compliant projectors that rely on pixel shifting -- whether we are talking about a 1080p projector that doubles the pixel count for something in between 1080p and 4K resolution (like the Epsons), or a full 4K projector that puts all the pixels in a UHD signal on the screen using pixel shifting (ie, all the single-chip 4K DLP models). So as per the next review/comparison, will the Viewsonic PX747 have a higher contrast ratio than PX727 b/c of higher lumens or is that not related? Thanks for your comments, Felix. dlp projectors projector projektorit disadvantages They most certainly can be. The difference here is that native 4K projectors have roughly eight million distinct pixels on their panel to start off with, while pixel shifting tech starts with a lower number of pixels and creates the higher number by using the source image and processing it.Depending on the individual model, some projectors pixel shift twice, some do so four times with the former having a more convincing 4K effect in areas of the image where their is finite detail such as small text.Weve made no bones about the fact that this is not native 4K. Even though there is little news here that hasn't been mentioned in passing in the individual reviews over the last few years, I find it very timely and extremely valuable to have this summary and real-world assessment available. I despise these Companies playing this game. At any normal viewing distance beyond 1.0x the screen width, the differences in perceived sharpness of upscaled 1080p material is entirely attributable to factors other than the physical resolution of the chips. Each pixel is extremely small of course, but you can see clearly distinct pixels in rows and columns when you examine the image close up. On the UHD50, when you are at the same distance of 12 inches from a 5-foot wide screen, you can detect an extremely subtle hint of pixel structure, but it is nowhere near as distinct as on the UHD60. Interestingly and curiously, the editor of this article has chosen to compare just one part of the 4K UltraHD specifications, the resolution (which is lets say about 1/3 or even just 1/4 of UHD), and actually leaves out the MAIN and MAJOR part of it, the HDR and Wide Color Gamut (WCG), which, if you read and document yourselves, youll find out is actually what makes UHD new and best, and makes images look so good!
In addition, one of the biggest factors influencing what you see as image detail and sharpess is contrast. Small differences in image detail which are obvious when examined close up become insignificant or even invisible when you sit back to enjoy a movie in a typical theater set up. I honestly found it such a distraction in dark scenes that I've gone back to a 1080p projector. Consider what you experience when you see an image from a high-end DSLR on a TV or computer monitor or phone or tablet. But at the end of the day, both the level of digital noise and the projector's contrast have more impact on one's perception of the sharpness and the ability to resolve detail on these two projectors than does the physical resolution of their chips, which is a non-issue. Fortunately, the 1080-line to 2160-line conversion on most TVs and projectors today is excellent, aided by the fact that it's a simple doubling. Let the buyers and sellers beware! At this point the physical resolution of the chips in these two models has nothing to do with perceived image sharpness. However, at the same time, the hair detail in the Scarlett Johannson close-ups appears to be better defined on the UHZ65. Heres a quick guide to HDMI cables for 4K resolution formats :Basic 4K less than 10-bit colour, no HDR =10.2Gbps.Standard 4K 10-bit colour, no HDR =11.1Gbps.Advanced 4K 10-bit colour or higher and HDR =18Gbps.You can find out more about home cinema cabling in detail in ourcabling guide.Finally, check out a range of4K projector screensto complete your setup and ensure that none of the details from the image is lost to visual noise created by screen material structure of non 4K screens such as standard matte white. What is questionable is the life of the XPR module, aside from the noise it makes. Well come back to why this distinction matters.Resolution: 4096 x 2160 pixelsTotal pixels : 8.8 millionNot to be confused with : 4K UHD resolutionPrice : Upwards of 5000Currently, only projectors from Sony feature a native panel pixel count of 4096 x 2160.Every Sony 4K SXRD Home Cinema projector from theVPL-VW270ESto the laser light sourceVPL-VW790ES delivers true 4K images with a native resolution of 4096 x 2160. Since "4K" is all about resolution, it is not surprising that so many folks have been preoccupied with native 4K vs. pixel shifting 4K, and debating the merits of each. If youre watching a BluRay in 4K quality, the difference between the quality of resolution of the image produced by a native 4K projector and a pixel-shifting 4K UHD resolution projector is arguably negligible apart from when it comes to small intricate details/text in the image then native 4K wins hands down. The term "4K projector" is open to any of several interpretations, and there is no chance of a consensus--it is an emotional subject for a lot of folks. Evan, Fantastic real world review. This constant jump would make pixel structure less distinct. Time and time again weve been surprised by new models and the seriously impressive images they can achieve.When you take the steep price difference between these models and the native 4K alternatives, into account, its really worth giving them their dues.Resolution: 3840 x 2160 pixels (achieved through pixel shifting)Total pixels: 8.3 million, Not to be confused with: Native 4K DCi resolution. It uses four-phase pixel shifting to create 8.3 million pixels. In this case the UHD60 is higher in contrast than the UHD50, and in many scenes this contributes to the perception of it being the sharper of the two projectors. Now, let's back up to a more practical viewing distance. Sure, good contrast comes from other things too, such as the light source (type, efficiency, etc. Then Texas Instruments released an 0.66" 4K UHD chip with a physical mirror matrix of 2716 x 1528 which uses two-phase pixel shifting to create 8.3 million pixels, which is 4K UHD. In reality, pixel shifting has produced rapid advances in picture resolution at prices far lower than you must pay for projectors that have native resolution 4K chips. But also the level of digital noise, the image enhancement video processing, the color balance and saturation, and the optical precision of the projector's lens, all contribute to making a 4K projector's picture great or less than great. And at this distance, the pixel structure of the two projectors is obviously different. The original 4K signal is first down-converted to much lower HD resolution before being fed to each HD image panel. It's well organized, well written, objective, and well supported with concrete examples. The bottom line is if you're happy with the large home theater image you have regardless of tech, who cares. If I couldn't afford a native 4K projector--and I can't--I'd be absolutely delighted to spend my days being full of horse malarkey and enjoy the benefits of 4K HDR content on a pixel-shifting projectorwhich I do. Yet if you're looking at such images on anything other than an actual print, you are looking at a finite number of pixels equal only to what any given display can reproduce. projectors Is there is any visible difference in image sharpness? projectors shift :).
For the best experience on our site, be sure to turn on Javascript in your browser. Meanwhile, contrast is of utmost importance. projector disadvantages optoma projector laser 4k projectors sponsoring epson classroom wish thank america report And this is a huge however - the Epson HC 4000 is much higher in contrast with much more solid black levels than the PX727-4K. Epson followed using pixel shifting on 1920 x 1080 3LCD chips. Dont the mirrors move and pixel on/ off color changes have to fire 4 times more than a native 1 to 1? All of these 4K projectors regardless of chip type are able to create images in a class that is legitimately understood as 4K resolution. But hey ho I don't think it would be something the manufacturers would reveal. And in this regard the UHD50 tends to edge the UHD60 with an overall lower noise factor. You get maximum benefit from 4K projectors when using them on 100" or larger screens, depending on your viewing distance. Thus, in theory, if the number and size of discrete pixels has anything to do with it, the VW285ES should be able to resolve more detail than the UHZ65, assuming the three chips on the VW285ES are perfectly aligned.
Jim, After studying the operation of the XPR module with its pixel shift to achieve an apparent resolution of 4K, I think that the micromirrors cycle of the DMD chip is the same as in FHD. Once again, the big issue is contrast - the UHZ65's 4K HDR picture is substantially brighter and noticeably higher in contrast than the VW285ES. And more recently, what is all this were hearing now about True 4K, pixel shifting and upscaled 4K? Thanks again.
The revolution began with JVC's introduction of pixel shifting in 2013. lightest projectors While this used to be a hugely important spec in the projector business, it is no longer an issue of consequence in the world of pixel-shifting 4K for home theater projectors. 1999-2022ProjectorCentral.com | 7/29/2022 9:57 PMPST. Lee, you are referring to a known engineering feature of at least the 4K DLP DMDs that causes this false dark frame around the image. I bought my dad an Epson 5040UB last year and I recently bought an Optoma UHZ65. Understood-people have complained about it for years, but the alternative would be to go with a more current 4K DLP where it's not as obvious or a 4K three chip projector. Pixel shifting was and probably still is used as a con game to convince people to buy a projector they thought they were getting instead of what they were actually getting. uhl55 optoma projectors And even in home theater, if you have a much larger than typical screen and you like to sit in the front row of a movie theater, the incremental picture resolution from a native 4K projector may be visible and relevant to you. 720p to 4K conversion (as you might experience coming from a cable box on certain channels) is more complex and not always quite as clean, though most set-top boxes will perform a conversion from 720p to 1080i or 1080p before sending it to the display -- probably with worse results than if you let the display do it. Thats over 8 million separate pixels, giving four times the detail of Full HD.While some other brands of projectors are advertised as being 4K capable or True 4K, they actually use lower-resolution 1080p or 2K panels. 
Move up close, however, and you can see pixel structure.A picture generated by either the 4K DLP chip or by the 3LCD 4K-enhanced models will certainly appear higher in resolution than a standard HD 1080p picture from a distance of 1.3x the screen width. They followed that with an 0.47" DLP 4K UHD chip which has a physical mirror matrix of 1920 x 1080. On a 120 screen sitting 9-10ft away, the resolution increase of my Epson 5040UB compared to my older Panny PT-AE8000U was very noticable, and worth the upgrade. While I prefer the latter definition myself, what I care more about is that buyers come to realize that the differences in detail resolution between all of these various 4K implementations are extremely trivial compared to the major issues of contrast, brightness, color balance and saturation, and image stability and clarity that ultimately define the greatness of a home theater picture. That holds for all 4K compliant projectors that rely on pixel shifting -- whether we are talking about a 1080p projector that doubles the pixel count for something in between 1080p and 4K resolution (like the Epsons), or a full 4K projector that puts all the pixels in a UHD signal on the screen using pixel shifting (ie, all the single-chip 4K DLP models). So as per the next review/comparison, will the Viewsonic PX747 have a higher contrast ratio than PX727 b/c of higher lumens or is that not related? Thanks for your comments, Felix. dlp projectors projector projektorit disadvantages They most certainly can be. The difference here is that native 4K projectors have roughly eight million distinct pixels on their panel to start off with, while pixel shifting tech starts with a lower number of pixels and creates the higher number by using the source image and processing it.Depending on the individual model, some projectors pixel shift twice, some do so four times with the former having a more convincing 4K effect in areas of the image where their is finite detail such as small text.Weve made no bones about the fact that this is not native 4K. Even though there is little news here that hasn't been mentioned in passing in the individual reviews over the last few years, I find it very timely and extremely valuable to have this summary and real-world assessment available. I despise these Companies playing this game. At any normal viewing distance beyond 1.0x the screen width, the differences in perceived sharpness of upscaled 1080p material is entirely attributable to factors other than the physical resolution of the chips. Each pixel is extremely small of course, but you can see clearly distinct pixels in rows and columns when you examine the image close up. On the UHD50, when you are at the same distance of 12 inches from a 5-foot wide screen, you can detect an extremely subtle hint of pixel structure, but it is nowhere near as distinct as on the UHD60. Interestingly and curiously, the editor of this article has chosen to compare just one part of the 4K UltraHD specifications, the resolution (which is lets say about 1/3 or even just 1/4 of UHD), and actually leaves out the MAIN and MAJOR part of it, the HDR and Wide Color Gamut (WCG), which, if you read and document yourselves, youll find out is actually what makes UHD new and best, and makes images look so good!
