calculator, you will see dimension lines that will tell you the height, width, and diagonal measurements of your image. Calculating a Throw Distance when you know the IMAGE SIZE Countering the trapezoid effect when the projector must be placed off-center, such as simple placement on top of a table, vertical keystone adjusts the image for a professionally squared image. Keystone correction makes it simple to project ideally aligned images from a variety of locations. A projection calculator is used to calculate a screen size when a projector is a specific distance away from the screen. As you move a projector in your room. The position of the projector in your room changes because you will need to move the projector closer or further away from the screen

In keeping with the brand’s experience selling gaming monitors, BenQ markets some highly innovative projectors for gaming, including some of the first 4K native resolution 60Hz gaming projector models available. They also offer budget projectors designed for easy setup and portability. How BenQ Compares to Other Brands Factors that affect how long a projector will last include frequency of use, environmental conditions, and how it’s maintained. Fortunately, most modern BenQ DLP projectors use low-maintenance sealed mirror assemblies and long-life LED or laser light sources. As with virtually all inexpensive home theater projectors we've tested, the brightness variation is easy to see with a 100% white or light colored image. With the projector sitting on a table, brightness is highest at the bottom center of the image, and gradually falls going up and to either side, making the upper left and right corners the dimmest. Those who are particularly sensitive to brightness variations may find this unacceptable. However the difference is hard to see with any image that breaks up the field of view. The BenQ TH671ST offers the advantage of Keystone Correction. This handy feature offers great benefits when installing. With the ability to digitally shift the image by +/- 40 degrees in the vertical plain, the TH671ST can be fitted in more awkward locations and enables a wider choice of screen options.These days the content produced by movie and TV production companies is of truly incredible quality. The effort and expense put into making sure every single frame of your favourite film franchise or TV show is huge - and, handily, there are ways you can maximise your chance of seeing things absolutely as the makers intended. A large TV is the most common choice, for sure, but a projector can provide you with a home cinema environment to rival your local multiplex! Input lag is the major curse for gamers. There’s little more frustrating to a gamer than when the vision just doesn’t respond fast enough to the controls. It can mean the difference between onscreen life or death, a lap record or second place or simply missing out on completing the level in time. With its class-leading 16.67ms response, the TH671ST is the fastest responding projector in its class. Whether you’re using a PS4, Xbox or Nintendo Switch, now there’s no excuse for not beating your rival to the draw. To determine the Image Size (screen size) enter a distance measurement number in the Throw Distance value box and hit the Enter

The BenQ TK850 3000-lumen projector produces UHD pictures at resolutions of up to 3840 x 2160 pixels. This projector supports HDR10, providing incredibly bright, colorful content. The device has a dynamic Iris and enhanced contrast, making it a good choice for home theaters. This device is factory calibrated and covers the DCI-P3 space quite well. With a dedicated Sport mode, this projector is suitable for watching sports. However, this projector produces above-average fan noise.To determine the Throw Distance for where you should place your projector in the room, enter an image diagonal measurement number in the Image Size The TH671ST is laid out much as I expected and follows logic and reason from a users perspective when it comes to placement and overlapping command center controls.