New foot lambert calculator avs forum home theater. We recommend that every person considering a projector screen use each of these three tools to. Projection calculator classic throw distance and screen size. A foot lambert is a measurement of visible light that equals 1 circular candela per square foot, or 3. From painting a digital cityscape in the background to using a screen for story narrative, you can do a lot when you put a projector behind an actor, person, musician, etc in an event. Projection calculator pro projector to screen distance.
Determining projector throw ranges is easy and quick with these 10 mobile apps. Projector calculator projector screen calculator aspect ratio. Need help calculating the right size projector screen for your needs. Choosing a target foot lambert reading how many fl depends on user preferences, your usage habits and lamp budget, 3d vs. Fl foot lambert formula vs projectorcentral calculator. Using projection as a theatrical or digital backdrop. Foot lamberts are the measured brightness of a projector s output spread over the surface of your projection screen. Evaluating lux vs lumen to decide which projector is best. Discover a universal assistant for all of your unit conversion needs download the free demo version right away. Image brightness targets and calculating foot lamberts from projector lumens. Foot lamberts are a way to interpret accurately how bright your screen will be. If you were to reduce the image size to a 180 diagonal x 7. For uniform, isotropic light source, the luminous flux. It is worth saying that almost every single home theater projector is ideal around 120 to 3 diagonals.
The basic formula most pros use when figuring throw distance is one foot of screen width to every two feet of separation between lens and screen. French military maps had been based on the bonne projection, which may have been adequate for france, but were not bonnes when extended eastwards, so new maps were made on the lambert projection for the projected invasion of germany in 1914. A projectors distance from the lens to the screen surface is called the throw distance. The easysimplebasic way is to use the projector calculator from projector central. I was a little confused since when i used the projectioncentral calculator, it guestimated that i wouldnt.
The result will appear in the box next to lumensquare meter lmm2. Projection calculator projectors products ricoh global. Digital projection can not accept liability for damages of any. For a hypothetical 700 lumen output projector, and 1. As an example, the society for motion picture and television engineers recommends 16foot lamberts in a dark, dedicated theater.
Enter the screen luminance either in nits or footlambert. So for example, the most common projector throw ratio is 2. This free software is an intellectual property of epson. The projector was sourced through digital projections distributor in australia, amber technology. All model types business education home portable professional. Our projector installation calculator can help you find the perfect projector distance and screen size for your room. Phantom of opera leveraged projection as a theatrical or digital backdrop to fake an audience for one shot. A footlambert or footlambert fl, sometimes fl is a unit of measurement of luminance in u. Download luminance unit converter our powerful software utility that helps you make easy conversion between more than 2,100 various units of measure in more than 70 categories. If you had a higher gain screen, youd first multiply the lumens by that gain before dividing by the screen area. Ricoh projection calculator, a flash based tool for calculating projected image sizes. You are providing your consent to epson america, inc. A footlambert or footlambert fl, sometimes fl or ftl is a unit of luminance in united states customary units and some other unit systems.
By closing this window or continuing to browse this website, you consent to the use of these cookies. The foot lambert reading is shown on an led digital display and is expressed to at least one decimal place. Theater projector cost nondiscounted retail pricing for. Whether you enjoy movies, games or sports events, every image is sure to pop off the screen with epsons stateofthe art, innovative home projectors. Footlamberts ftl are the unit of measure used by the motion picture industry to specify how much light should be reflected off the movie screen in a 1foot x 1foot area. With its stable solidstate light source capable of producing over 20,000 hours of illumination, digital projections highlite laser projection technology is a revolution of ease and simplicity. I plugged in number to your calculator but when i plugged in an ideal footlambert rate of 16, it said the projector would only need about 433 lumens. Projector screen size calculator distance calculator. So naturally all i have thought about is home cinema. Epson projectors lead the market with their innovative technology. For multiple languages, use the projection calculator classic.
The baseline lumens data is more accurate than any other projector calculator. Projection calculator classic find your screen size and throw distance with the projection calculator classic by following these 2 easy steps. This free pc software was developed to work on windows xp, windows 7 or windows 8 and is compatible with 32bit systems. Tools and calculators nec display solutions of america. Using the sanyo z5 projector as an example, its lumens is given as 1100 ansi. The throw distance and the size of the image it produces on the screen are proportional to each other based. View the epson projection distance calculators and display size calculator for optimal projection setup. Projector image calculator nec projector image and lens. Use our screen size calculator to determine the viewable area of a screen based on any 1 dimension use our projector calculator to determine throw distance and optimal screen sized based on your projector use our viewing distance calculator to figure out the optimal seating distance for your audience.
Home theater projector installation labor, basic basic labor to install home theater projector with favorable site conditions. The society of motion picture and television engineers smpte recommends 16 footlamberts in a dark movie theater. You may withdraw your consent or view our privacy policy at any time. To contact epson america, you may write to 3840 kilroy airport way, long beach, ca 90806 or call 18004637766. This means that for each foot of image width, the projector needs to be 2 feet away or dw 21 2.
For the older calculator, use the flash projection calculator. Im trying to find a simple way to evaluate the amount of lux i need, and use it for a good cost benefit projector choice. Use the following calculator to convert between footcandles and lumenssquare meter. Dukane is an american company serving the education, corporate, government and house of worship markets for over 85 years. My mrs has said i can put home cinema projector and screen in the lounge. Columns can be sorted by clicking the columns header. Cinematiccolor for colours as directors envisioned benq. As i came to learn, the two key elements are foot lamberts fl and contrast. Footcandles to lumenssquare meter conversion calculator. Its the sizing and brightness download on this page. The digital screen checker ships with a mounting tripod and 3d glasses holder.
So if im using a projector with a throw ratio of 2. Trusted windows pc download projector calculator 1. The footlambert is named after johann heinrich lambert 17281777, a swissgerman mathematician, physicist and. To ensure that you get the possible best experience, this website utilizes thirdparty profiling cookies. The total cost of ownership calculator lets you compare nec displays with other displays, with your precise energy consumption and costs, to give you the big picture on tco. This projector calculator tool is intended as a guide to selecting your projector and lens. Use our custom projector screen size calculator with our other two great screen tools. The luminance of a perfect lambertian diffuse reflecting surface in footlamberts is equal to the incident. If you need to convert footcandles to other units, please try our universal illumination unit converter. You can measure luminance in cdm2 or foot lamberts on the basis of screen gain. Choose a screen size from the right or select customize to customize the screen size.
The calculator hcinema shows me for the acer p1100 and a 88 screen with 1. It lets you calculate throw distance based on entered lens ratio and vice versa. Theres also an omni calculator online for foot lamberts if you prefer that approach. Find out how much you can save in a few quick steps. These seem to be the predominant projections for maps of the us lower 48. Type the value in the box next to footcandle ftc, fc. Real d xl high efficient polar system dual projector laser e. Calculate the possible image size width, height, diagonal for a given distance distance calculate the necessary projection distance distance for wide angle and telephoto lens for a. The foot lambert formula has been given as fl lumens gain screen area in sq ft if a 16. In order to help you make a final selection based on material, resolution support, toughness and more. Simulation visualization archives digital projection. Always check the official product specifications and test the distance in the chosen environment before fixing any mounting parts to a wall or ceiling. The optoma distance calculator is a tool for estimation purposes only.
Real d z screen, master image clarity polarisation recuperation e. How projection screens can make or break a projection. As you can see from my thread im in need of help choosing a projector for my home cinema projector. Projector calculator 4k projectors and 4k projector screens. Projection distance calculator free download windows version. Or try the projection calculator pro and get recommended screen sizes, throw distances, room lighting, screen brightness, seating and projector placement based on your application. Reverse screen brightness to projector lumen calculator projectors only projector locations projectors only 5. For reference, cinemas usually produce between 12 and 22 footlamberts and a direct view tv produces 35 footlamberts or more. Foot lamberts is a calculation thats used that takes into account the light output of the projector, the size of the image, and the gain of the screen, and comes up with an example. Select your screens aspect ratio and input any dimension to calculate your screens overall viewable area.
Its also the one that best incorporates two subcomponents i didnt fully understand and appreciate until just a few years ago lens dimming factor ldf and lens speed f. We use realworld measurements and percentile averaging for maximum accuracy. Lumens to candela calculator candela to lumens calculation. For the perfect large scale projector installation, the right lens is vital. Image brightness targets and calculating foot lamberts. If you would like a copy of the excel spreadsheet, it can be found on my. The us unit is the one typically used in home theater design and calibration. Lambert was the inventor of the hyperbolic functions, and the first to study map projections scientifically.
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