Review on 📽️ Optoma GT1090HDR: Lamp-Free 4K HDR Short Throw Laser Projector, 30,000 Hours Operation, 4,200 Lumens for Day and Night Viewing by Wayne Martin

This is my first projector and I can't believe I waited so long to take the plunge. It met very specific usage requirements: it had to be ceiling mounted in front of a fan that I didn't want to move, leaving only about 4 feet between the projector and the screen. This produced an 80-84 inch image depending on how I positioned the projector on the mount. After installation, the picture was large, bright and clear. It's a little dark in broad daylight, but in a slightly to fully darkened room I'd say it's on par with any modern 1080p TV in terms of picture quality. My wife was so impressed that she immediately decided to watch TV and movies in the "projector room" rather than the main living room. It really is a game changer - perfect for watching group parties and great for video games. Fan noise can be a bit annoying, especially when you have Dynamic Black mode enabled, which adjusts the lamp's brightness in real time, making the fan louder and quieter. Increasing the volume will fix this problem. Speaking of audio, if you're using this for media, you'll need external speakers. The built-in speakers are still quiet and of poor quality at maximum volume. This is typical for projectors, just something to keep in mind when evaluating things. I connected it to my home theater system via HDMI. And now a few hints about the setup. As mentioned, this was my first projector and I learned a few things through trial and error: First, positioning is extremely important when using a screen. Mounting on the ceiling requires some experimentation, as it did for me. The distance from the lens to the screen is the only factor that determines the size of the image. The projector has an image shift function that lets you shift the image up, down, left and right by a few inches, as well as a zoom and edge mask adjustment, but none of these functions can physically change the direction the projector is beaming bright. For example, if you find that the image doesn't quite reach the right edge of the screen, adjusting the image shift to the right will only shift it from the LEFT side and crop the image on the right side. If you want the picture to be straight and square and fill the entire screen without bleeding, the installation position should be just like that, the right distance from the screen with the lens right in the middle (horizontally, not vertically). Luckily, the universal mount I purchased allows me to move the mount while it's attached to the projector without having to move the hardware bolted to the ceiling. Some 0.49 gear ratio calculations are a good starting point for distance determination. After that, I had to make several attempts to position the mount correctly so that the image was exactly centered on the edges of my screen. One suggestion if you find yourself doing what I did: use a home theater test chart, not a projector. built-in grid. When the grid is on, you can only correct keystone (vertical tilt). To do this, I simply used a test pattern on a Disney Blu-Ray Disc. Finally, a note about screens. I am using an 80 inch manual retractable screen which the manufacturer does NOT recommend for use with short throw projectors due to small ripples on the screen causing image distortion. Unfortunately, a retractable screen was a requirement of my projector setup, so the room wasn't meant to be a "TV room" forever. Of course there's a little ripple in the bottom right corner of my screen that causes very little distortion that's only really noticeable when the picture is moved from side to side. I can live with that, but if you're a stickler, consider using a statically mounted screen or no screen at all.