![]() To select the ideal projector for your home, you will need to measure the length and width of the room and use the maximum distance the projector can be placed from the screen to filter for the specific projector model that will meet your ideal screen size from that distance. Therefore, the projection distance starts from your room size and where the projector will be placed also its distance to the screen or which wall to project the image. ft, such as a small apartment when it is needed to project a 100-inch picture. In this example, the specification 8.2ft " means that the minimum distance you will need is 8.2ft from the projector to the wall to get a 100-inch screen size, which is an ideal projector set up in a space of about 21 sq. Look for information about screen size and distance, typically expressed as "screen size distance" from the screen. ![]() Which can calculate a distance as 8.2ft from the wall for projection of a 100-inch image with a 16:9 aspect ratio (image width is approximately 7.2ft). Throw Ratio = Throw Distance / Image Width, Take throw ratio 1.13:1 as an example, the relationship between projection distance and screen size is defined as Though a large space is needed in order to project onto large screens, today’s short throw and ultra-short throw projectors, or throw ratio around 1.13:1, make it easy to enjoy 100”+ screen sizes in rooms of any size simply, especially in small apartments. It is commonly believed that having at least a 100-inch screen can really immerse into an ideal home cinema experience. You can find out how to avoid them below. These cookies and other technologies capture data like your IP address, when you viewed the page or email, what device you were using and where you were. We use various advertising partners, including Amazon, Facebook, and Google. These cookies are used to track your activity on the BenQ website and other websites across the Internet, help measure the effectiveness of our advertising campaign and deliver advertisements that are more relevant to you and your interests. See list of performance and advertising cookies To opt-out of Hotjar collecting data, you can disable tracking completely by following link:. To opt-out of SessionCam collecting data, you can disable tracking completely by following link:. To opt out of certain ads provided by Google you can use any of the methods set forth here or using the Google Analytics opt out browser add-on here. You can control the information provided to Google, SessionCam and Hotjar. ![]() If you want to opt-out of advertising cookies, you have to turn-off performance cookies. We also use Google Analytics, SessionCam and Hotjar to track activity and performance on the BenQ website. These cookies help to improve the performance of BenQ. Generally speaking again, the measurements are usually fairly close from what I have experienced personally and what I have read through feedback of how close the calculator produces results.Performance cookies and advertising cookies So what I am saying is that it is possible that even a single unit can project a different sized image in some cases at different times. This may be due to video processing perhaps or even a minor physical abnormality with the optics that some how changes from time to time. ![]() Next time around the image would fit perfectly, and so on. The next time around the image would fit closer. Move it to the other room for a few days then back again, then discover that the zoom from the same distance would not fill the screen. I could place the projector at exactly the same spot with the same zoom and the image would fit the screen perfectly. ![]() I actually built the screens to match the projected image by measuring the image first then building the screens against the measurements I took. I owned a projector that I moved from room to room often that was used on two different screens. This can be due to numerous aspects of the actual build quality if the seperate units in that model family, the way the optics were assembled, how the zoom works on each seperate model, etc. Part of the reason the measurements can never be 100% accurate is because for instance, if you were to project an image from 10 projectors that are the same model, at the same distances, with the same projector placement, even then there will be minor differences in the size of the image between the units. However I have tested numerous units against the calculations provided and they are never to the letter totally accurate, but they are usually very, very close. Projector Central does not usually test such figures, only posts them. When you use the calculator you may notice something that mentions that measurements are based on manufacturer provided specs. ![]()
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