OK, fun and games time with sharpness, perceived sharpness, detail, etc. I've discussed a bit in the Special Features pages, but here we'll post a variety of images and then close ups.
I will focus on 4K content, since any 4K capable projector should do at least a really good sharpness job on 1080p and lower resolutions. The only exception is the last image, Which I'll discuss at the end of this section. The close-up versions are good representatives of actual sharpness, if you click, and then expand again.
After the first couple of image/close-up images (4K disc), the third pair - is from Blacklist streaming on Netflix in 4K (no HDR). Next I have provided a large collection of comparison images of the lab/credits in Ghostbusters 2016 (4K UHD Blu-ray). After the UHD51A, in order, those close-ups are: BenQ TK800, and the Viewsonic PX727-4K (both use the same DLP chip as the UHD51A), then comes the laser projector, the Acer VL7860 which uses the higher resolution 4K UHD DLP chip. That's followed by the Vivitek HK2288 (same chip as the Acer). Next we leave DLP and check out Epson's 5040UB, which is 4K capable but uses a 1920x1080x2 chip (and is a touch less sharp. Sony's VW385ES comes next - true 4K LCoS chip, $7999, this one shares the same lens as Sony's entry level. Finally Sony's $15K VW885ES. (Sony's get sharper as you spend a lot more, thanks to better lenses).
The last few images are renderings of the Bigalow space station in Journey To Space. A shorter collection here, just the Optoma 51A and Viewsonic, the Optoma UHD65 with its bigger chip, and lastly the Epson 5040UB. Then Saturn, of course, and our one football close-up.
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The one 1080i resolution image close-up you see as the last image, is a close up of part of a 8 football game Game Mix on DirecTV. While the small test in individual games is a bit rough, you can pretty much read everything that was on a single televised game, even with that one game occupies less than 10% of the full screen. (That's pretty darn good!).