I’ll start with Dark Shadow Detail. No real issues. Look into the dark woods, on the right, or the bushes behind the the tracks on the right side, and there’s plenty of detail. (Bond night train scene) That said, the tracks and other details don't stand out as much on this Viewsonic as on say, the HT2550 or some others before the usual brightness adjustment, but once that simple task is done, the Viewsonic does very well, and the detail itself seems to be all there. On the scene of Rue and Katniss sleeping in The Hunger games, look for details in the large dark area around the bottom center.
The Viewsonic gets a boost, in having the darkest details be fairly visible, in part due to projectors without really dark blacks, lighten everything included the darkest details, which in turn makes them easier to spot.
Of course, there are other great dark images here for your consideration. The City of a Thousand Planets (Valerian) dark photo may end up being a new photo for comparisons, one that is 4K with HDR, since 4K with HDR behaves rather differently than all our good old 1080p content which all lacks HDR.
Black Levels are a disappointment, as they have been on every single chip DLP 4K UHD projector we’ve reviewed, (except the $9K BenQ HT9050) That BenQ is definitely step up from entry level/near entry level, where this Viewsonic lives comparable to its similarly priced and slightly more expensive DLP competitors.
Of course if you aren't putting the PX727-4K into a room really suitable for serious home theater, then you probably won't be buying the 2200 lumen PX727-4k, but instead the 3500 lumen PX747-4K, with the extra "horsepower" and a different color wheel - that's the pure "home entertainment" version for your living room, etc. There's a whole sequence of labeled greyscale and overexposed shots of the Bond train scene for comparison. The last two, Epson and Sony, are over $1000 more, and $4999 respectively, but are excellent examples of what a serious step up performance on black levels would look like.
Again, I emphasize that to get a dramatic improvement in black levels, you’ll probably need to spend at least an extra $1,000 at this time.
If you are used to projectors with what I have long called “ultra high contrast” projectors, such as the Epson UB and higher, JVCs, Sony HT projectors with dynamic irises, and some really high end projectors we don’t get to review, they would all put these entry level 4K UHD projectors to shame, when it comes to handling those darkest of scenes.
That’s why I tend to think of most of these projectors as “home entertainment” in that they will appreciate being in a really dark room – even near pitch dark, but the projector doesn’t produce those deep blacks, instead rather medium dark greys, on very dark scenes.
Of course I really care about such things. Some of you just want a projector with overall fine picture, with the emphasis on really large image!