A short throw projector has a throw ratio between 0.4 and 1. The throw ratio is calculated using the distance from the projector to screen divided by the maximum projected width of the image. They used to be very expensive and rare, but projector technologies have greatly improved over time.

What is a good throw ratio for projectors?

Among all existing projectors, a throw ratio around 1.13:1 is the most common design that has the lens in the front of the projector. These designs can require distances as short as 8.2ft to project a 100-inch screen, which is the most common throw distance setup in limited space or small apartments.

Is a higher throw ratio better?

Throw Ratio tells us what image size we can project from a certain distance away. For instance, a throw ratio of 1.5 indicates that for every 1 foot of image width, the throw distance must be 1.5 feet. The smaller the throw ratio, the larger the image a projector will produce at a shorter throw distance.

What throw ratio means?

In video projection terminology, throw is the distance between a video projector lens and the screen on which it shines. It is given as a ratio (called throw ratio), which describes the relationship between the distance to the screen and the width of the screen (assuming the image is to fill the screen fully).

What is a 1.2 throw ratio?

The projector you want to buy has a throw ratio of 1.2:1. To fill that 80in-wide image, you’ll need the projector to be 96in away (80 x 1.2 = 96). Get a tape measure out and you can plot where your PJ will have to sit.

How far away does a short throw projector?

between 3 to 8 feet away

Short-throw projection generally refers to a distance between 3 to 8 feet away from projector to screen. Ultra-Short Throw: Virtually eliminates shadows and eye glare, this type of throw is seen from projectors installed on the wall, the ceiling nearer to a wall, or a table projecting downwards.

How far should a projector be from a 120 inch screen?

Projection Distance

Screen or image size Projection distance (1) Minimum to Maximum Screw hole number (2)
80 inches (203 cm) 110 to 121 inches (281 to 306 cm) 4
100 inches (254 cm) 138 to 151 inches (351 to 383 cm) 3
120 inches (305 cm) 166 to 181 inches (422 to 461 inches) 2
150 inches (381 cm) 208 to 227 inches (529 to 577 cm) 1


Is short throw better than long throw?

The throw ratio is higher for long throw projectors and lower for short throw projectors. Therefore, a short throw projector can be placed closer to the screen than a long throw projector. What is this?

Are short throw projectors brighter?

Are short throw projectors brighter? All major projector brands use the ‘ANSI’ Lumens standard to measure brightness, having a short throw projector does not necessarily mean it will be brighter.

Are short throw projectors better for outdoor?

Last, ultra short throws, or USTs, let you put the projector just inches away for the same image size. However, these are best avoided for outdoors, because they are finicky about being positioned “just so” relative to the screen, which adds to setup time.

How far away does a projector need to be for a 200 inch screen?

Projection Distance

Screen or image size (1) Projection distance (2) Wide to Tele
100 inches (254 cm) 116 to 188 inches (295 to 478 cm)
120 inches (304.8 cm) 139 to 226 inches (354 to 575 cm)
150 inches (381 cm) 174 to 283 inches (443 to 719 cm)
200 inches (508 cm) 233 to 378 inches (591 to 959 cm)

How far should you sit from a 100-inch screen?

119 inches

To find your optimum distance, measure the size of your screen diagonally and divide that size by . 84. Using that calculation, a 100-inch projector screen requires an optimal viewing distance of 119 inches or 3m from the screen.

How far back does a projector need to be for a 100-inch screen?

around 10.5ft

How Far Should a Projector Be From a 100-Inch Screen? Ideally, you should use your projector’s manual or manufacturer’s website to calculate the best distance from the screen for your particular projector. A good rule of thumb for a 100-inch screen is to have your projector between 122 and 133 inches or around 10.5ft.

How far should a projector be from a 72 inch screen?

Projection Distance

16:10 Aspect Ratio
Screen or image size Projection distance (1) Wide to Tele Offset from lens center (2)
60 inches 24 to 33 inches (61 to 84 cm) 3.7 inches (9 cm)
70 inches 28 to 39 inches (72 to 99 cm) 4.4 inches (11 cm)
80 inches 33 to 45 inches (83 to 113 cm) 5 inches (13 cm)

How do I know if my projector is short throwing?

An easy way to tell if a projector is a short or a long throw is usually by the initials at the end of a model number. So for example, if it ends with ST, that typically, though not always, means that it will be a short throw projector. The opposite is true for those ending in LT.

What is the best distance between projector and screen?

The absolute “best” distance between the projector screen and room seating is hard to calculate. Instead, a general rule is that seats should be located a distance that is no less than double the width of the projected image, and no more than five times the width of the image (the furthest seat from the screen.)

How far from the wall does a projector need to be?

Short throw projectors need to be between 5 and 10 feet away from the screen, depending on how large of an image you want. Short throw projectors have a throw ratio between .

How high should a projector screen be from the floor?

The bottom of the screen should be approximately 40-48″ above the floor in a room with a level floor and several rows of seats. Evaluate any barriers, and try to make sure that the lower part of the screen will be visible from all seats.

How do you set up a short throw projector?

Quote from video: The bottom of the screen will then start 17 inches from the surface. The next step is determining. How high the wall brackets need to be on the wall to hang the screen.

How many lumens is a short throw projector?

For a traditional lamp-based projector, you’ll want something with at least 1500 ANSI Lumens, but if you want to use the projector during the day at all, you’ll want a short-throw projector rated for at least 2000 ANSI Lumens if not 3000.

Are short throw projectors any good?

Short throw projectors operate at a much-reduced distance to the projector screen, using mechanical lens shift and keystone correction to project an image at an extreme angle without impacting the visual quality. Ultra-short throw projectors can deliver just as good a picture as many of the best traditional projectors.

Are ALR screens worth it?

Yes it is a lot of messing around but the result is worth it, or you can go with all dark colors / black and a white 1.0 screen and do all your watching in pitch black and the image will be beautiful. That’s the reason Commercial Theaters do it that way.

Can you use ALR screen with regular projector?

Shown here at CEDIA, under lots of trade show ambient light. Ultra short throw projectors cannot use an ALR screen designed for standard throw projectors, as those screens mistake the light from the projector as ambient light.

Does a dark room need ALR screen?

ALR screens will have a bigger advantage over either white or gray screens the more ambient light is in the room. They can still be beneficial in a dark room if the interior is light colored. Remember projectors are blasting light into the room. So light control isn’t enough to truly black out the room.

Are black projector screens better than white?

A black screen will give you a sharper image with better black levels than a white screen, especially in rooms with a lot of ambient light. If you plan to use a projector as a replacement for your living room television, a black screen could be a great solution.

Will a projector work on a grey wall?

A projector will work on a wall and for the best viewing experience, pick a special projector screen paint and find the right color. Grey usually works the best as it balances both black and white’s contrast and light absorption qualities.

Can I use a sheet as a projector screen?

Just like above, a plain white sheet works best. It doesn’t have to be a bedsheet, either. Any piece of smooth, white cloth will do the trick. The trickiest part of using a sheet as a projector screen is hanging it properly to avoid wrinkles, folds, or movement.