Originally Posted by Jerky_san
Also went through 6 HDMI cables before I found two that would show content without little pieces of distortion or flat out no signal. Really annoyed me that dell includes a cable that doesn't work with the equipment.
This happened to me as well and since the included HDMI cable didn't work, I at first thought the projector's HDMI input was faulty. As for the noise you're hearing, I don't have that. The fans can get pretty loud in "Bright" video mode and with HDR. I recommend regularly vacuuming the projector sides (dust filters) and the bottom. Take note of the intake fan under the projector - it can get dusty in a relatively short time. I have to vacuum it every 2-3 weeks or so, forcing to reposition the projector afterwards. Cleaning that fan often helps with the fan noise in HDR mode ("Bright" video mode is always loud).
Which brings me to the positioning of an UST. As many have pointed out, it's very hard at first. Here's how I've learned to do it quickly:
1. Start by finding the center position for the projector (horizontally). Left and right sides of the image should be the same height. If the image is trapezoidal vertically, make it the width of the screen from the middle (by moving the projector).
2. Your floor may not be entirely in level with the screen, so you may need to adjust left or right "back feet" of the projector.
3. Next, fix the trapezoidal with the projector's "front foot". If the top of the screen is wider, lower the front of the projector (and vice versa). Here's where it can get tricky if your screen is installed low: USTs have a high vertical offset and it is not easy to lower the image (without resorting to keystone and/or tricky "back feet" adjustments). It's better to rather install your screen a tad too high (like 1-3 cm) than too low. Then you can simply open up the projector's "feet" more, allowing more fresh air to reach the cooling fan at the bottom, too.
4. All borders should now be the same size (i.e. image is not wider from the top or bottom, or higher from the left than right). If you now find the image is positioned too low, you can open up all three "feet" evenly.
5. Finding sharpest focus setting is easy when you get the hang of it: pick spots from both the center (projector menu) and a side (very left or right) of the screen. If you're pressing down from the remote and either of these spots start getting unsharp, start pressing up instead (and vice versa). You'll soon find the best (sharpest) setting.
6. Positioning image is easiest on a borderless screen (typically these are ALR/UST). Leave 0.5-1 cm of "borders" on each side (or more, if you wish). On an ALR screen it will automatically appear black (despite the fabric actually being gray, it's like magic). Trying to make the image exactly the same size as the screen (with no borders) is hard and I don't recommend it.
I'm still in the process of getting my screen installed to the correct height. It's currently hanging with a temporary solution and due to its 60 kg weight, needs at least 2-3 people to finish the installation. This is why I haven't posted any images of it, yet. It's a borderless 150" ALR screen from Screenline and the image looks fantastic. Way better than my previous white screen. But it is worth noting that these 0.8 gain screens will always darken the very brightest scenes a little. What I'm talking about is watching ice hockey, for example. With movies, not really. There are ALR screens with a gain of 1.5 but I believe they're all made for standard throw projectors and could hotspot with a ST (most likely unwatchable with an UST).
Originally Posted by aeneas01
what also intrigued me about the benq lk953st is that it's a short throw as opposed to an ultra short throw - this will allow me to mount it exactly where my current 1080p benq short throw is, as opposed to a very short distance from the screen.... in fact when i began looking at 4k laser pj i couldn't find any short throw options, which would have been my first choice, instead i could only find ust and standard distance options
This is exactly what I was looking for: a short throw instead of an UST. But there were no lasers available at the time. Now there are some, but the laser STs are pretty heavy for a ceiling mount (10-12 kg). I also have to admit there's a certain "wow factor" involved with owning an UST: since it's hidden behind the living room furniture (and super bright), the most common question I get is "is that a flat TV?". Some people turn their heads around trying to locate a projector (and failing), then asking me how much did my huge TV cost.
It's entertaining, even if a regular short throw really was more practical for our living room.
Shame that you've had so many issues with your S718QL and Dell warranty. I absolutely agree that a projector this expensive has to work flawlessly. Most people build their whole home theater for less than that!