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Short-Throw vs. Long-Throw Projectors

Short-Throw vs. Long-Throw Projectors

When it comes to purchasing a projector, a lot of factors are usually considered, one of which is whether a projector is a short-throw or a long throw projector.

No need to feel lost, I’ll explain what that means.

Before we talk about the types of projectors, you should know that the term ‘throw’ means the amount of distance you need to be able to cast an image from the projector to the screen.

That being said, let’s see what short-throw and long-throw projectors are. Just a little summary before we go into details of each. Shall we?

A short-throw projector is one that can create a large image at a short distance. The closer the projector is to the screen, the larger the image gets.

A long-throw projector, however, casts large images at a long distance. To get a 100″ screen size, you need to create at least six feet distance from the projector to the screen.

You might want to ask, what determines a short-throw or long-throw projector? The answer to this is not far fetched. The primary determinant is the lens that the projector uses.

So, how do you know if your projector is short-throw or long-throw?

You can easily know if your projector is short-throw or long-throw by looking out for the inscription ST or LT on your projector’s model number.

ST and LT are initials for short-throw and long-throw, respectively. If the model number ends with ST, then most times it means the projector is a short-throw, and it is vice versa for LT.

Some major differences between short-throw and long-throw projectors

  • Short-throw projectors need a small space between the projector and the screen to produce a larger image, while long-throw projectors need more space. To get a 100″ image size, short-throw projectors need to be placed about four feet from the screen, and long-throw projectors need at least six feet distance.
  • Short-throw projectors tend to produce more heat than long-throw projectors because they contain a chip used to modify the geometry of the image.
  • Long-throw projectors are less expensive than short-throw projectors. This is because long-throw projectors are easier to build.

Now, let’s dive into the details of each.

In this part of the article, we will be looking at each projector in detail. You will get to know:

So let’s get to it.

Short-throw projectors

short throw projector

Like I earlier stated in the article, a short-throw projector is used to cast bigger images from a short distance. This makes them very useful in an environment with little space.

Suppose you want to make a classroom presentation, watch a movie in a small apartment, the short-throw projector will be an excellent choice for you. The reason is that you need a little space to get a large image.


  • It is suitable as a business projector for travelers. You won’t need to bother about the size of the room for the presentation because all you need is just a little space between the projector and the screen, and you will have the right image.
  • Short-throw projectors tend to be smaller, and this helps with portability. No stress in moving your device around. It’s just superb!
  • It can be used for video games. So if you are a video game lover, you might want to get a short-throw projector for yourself. Trust me, it’s going to be fun all the way


Short-throw projectors do not come cheap, and this can be attributed to its amazing benefits.

Long-throw projectors

the meeting room using long throw projector

Long-throw projectors cast a larger image at a far distance. For instance, if a presentation is to be done in a large hall, then long-throw projectors are the best pick.


  • They can be easily built and thus, they cost less.
  • They are perfect for large hall exhibitions.


  • Their usage is limited to large spaces. If the projector is moved closer to the screen, the image may become smaller.
  • Long-throw projectors are prone to disruption when in use. Anyone can easily walk across space between the projector and the screen, and spoil the show.

When would you use a short-throw projector?

You should consider a short-throw projector if you intend to project in an area with just a little space available. Say a classroom or your bedroom.

When it comes to getting that cinematic experience in the comfort of your home, you should consider using a short-throw projector. It offers a larger image and less disruption when viewing. You don’t want any disturbance when viewing your favourite show or movie, right?

What is considered a short-throw projector?

woman using a short throw projector watching movie

When a projector needs only a little space to get a large image, it can be considered a short-throw projector. The space can be about four feet or less. The closer the projector is to the screen, the larger the image.

For a short-throw projector, when the projector is moved farther away from the screen, creating a distance more than four feet, the image becomes blurry, and that is not what you want.

Do you need a special screen for a short-throw projector?

The fact here is, to get the best image, you will need a short-throw projector screen. Why is this required? I’ll tell you.

The image will appear flat, when you use a bare wall, and the brightness will be affected if you have any light in the room. So, it is advisable to get a short-throw projector screen.

Last update on 2022-12-06 / Affiliate links / Images from Amazon Product Advertising API.

Are ultra-short-throw projectors good?

First, let’s know what these projectors do.

They produce a larger image at a very short distance from the projector.

This means that, compared to a short-throw projector, ultra-short-throw projectors need even smaller space to cast larger images, at most, 15 inches.

Now, whether they are good or not? Ultra-short-throw projectors are good. They are your best pick if you need to project in a room or space that is very small.

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