We discussed this topic earlier in the Special Features section, but since it has a major impact on picture quality, I wanted to spend a little more time discussing the topic and provide some additional photos showing what a difference the pixel shifting can make.
This Epson projector, thanks to its ability to process and pixel shift 1080 and WUXGA (2K) content, produces images that simply look sharper than the typical WUXGA projector.
Having pixel shifting would enhance the Pro L1755UNL’s value proposition compared to other commercial WUXGA projectors, even if it couldn’t handle 4K content.
It is true that the sharpness and detail providing pixel shifting 2K content will not match the sharpness and detail of true 4K material, so it is great that the Pro L1755UNL can also accept a nature 4K signal at up to 60FPS. True 4K content is processed and pixel shifting is applied to produce a sharper looking image. Since the projector’s native resolution is approximately 2.3 MP, it won’t be as sharp/detailed as a true 4K projector (8.8 MP resolution).
So could the Epson’s ability to process and pixel shift true 4K content be enough for someone to choose it over a true 4K projector when the need is for projecting native 4K content? In many cases, the answer could be yes, especially when cost is considered an important factor.
The images above are screenshots of projected 4K material. First are close ups showing the same image with Pixel Shifting Off and On. They really highlight how much this feature increases the clarity and detail of a WUXGA projector. While most 4K material just doesn’t contain enough fine details to see the difference between 4K and Pixel Shifting at a distance, the difference is noticeable in 4K content containing thin lines and small text. While Pixel Shifting does provide more clarity the Pro L1775UNL still can’t match the resolution provided by my reference native 4K projector.
As also mentioned earlier, a 6000 lumen 4K projector is in the $50K and up range so due solely to cost it is likely that some AV/IT decision makers may choose the Pro L1755UNL over native 4K even if the content being shown is primarily 4K. In many situations, the average person, at most viewing distances, couldn’t discern the difference between a 2K pixel shifting projector and a true 4K unit. So, unless you are really close to the screen looking at highly detailed 4K material, a true 4K project may not be worth the price premium.
Tough call, but with current true 4K non-home theater projectors being as expensive as they are, I suspect that projectors like this Epson will win a high percentage of 4K capable projectors’ market share. This will be true until we see dramatic price drops in the true 4K large venue projectors to make them more price competitive. After all, the Pro L1755UNL is less than half the price of a current true 4K, 6000 lumen model, yet it produces 15,000 lumens making it 2 ½ times as bright! In many situations the benefit of extra brightness far exceeds the benefits of additional resolution.
Bottom Line: Epson Pro L1755UNL’s picture quality is obviously enhanced by all this 4K processing, and pixel shifting. While the difference seen in our example images varies from subtle to blatant, the content projected always looks better with pixel shifting On compared to pixel shifting Off. It is true that a comparable 4K projector does offer higher resolution, but they cost 4-8 times more than this pixel shifting 2K projector. True 4K projectors are going to be hard to justify in most situations even when 4K content will be used.
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