Home and business projectors are not the same. Find out how they differ from each other.


Contrast is a ratio between the lightest and darkest sections of an image. It comes in a ratio format, such as 400:1 representing the number of steps the projector can take to go from black to white along the greyscale. Generally, the higher the ratio the blacker the blacks will be. While contrast is always a factor to consider, it is more important with video and animated presentations. Data and basic graphical information can be displayed adequately on a 400:1 or 500:1 projector, whereas you may want a ratio of 1000:1 or more if viewing movies or presentations with video and animation.

Image size

The size of the image is also something to take into account. Depending on the size of your screen, and the number of viewers you will want to cater your image appropriately. Most projectors will give a range for the image they can produce, something like 40in to 150in diagonal and if you go above the maximum projection size you will start to experience image quality problems mostly resulting in loss of definition and focus.

Throw Distance

Part and parcel with image size is throw distance. The minimum throw distance is the closest the projector should be placed to the screen, and will result in the minimum image size. The maximum throw distance results in the largest image possible without loss of detail. Throw distance can also be referred to as either a short or long throw. A projector with a long throw needs to be placed further away from the screen than a projector with a short throw distance in order to achieve the same image size. Due to their primary use in boardroom presentation, most business projectors will have a short throw distance capable of producing a large image while being much closer to the screen.


Many projector buyers like to use their projectors in multiple locations, making size and weight a major factor. For those on the go, projectors that are easy to transfer and that can connect simply and quickly to a notebook is of utmost importance. Typically a portable projector is something that weighs less than 3 kilograms. This is light enough to be carried with ease around a large office, and setup in multiple locations. If you want something even smaller that can be carried on a plane or in a notebook bag, micro portable projectors typically weigh less than 1.5kg. DLP projectors are often smaller than their LCD counterparts, because they use a single chip instead of three LCDs.

Join the Good Gear Guide newsletter!

Error: Please check your email address.

Our Back to Business guide highlights the best products for you to boost your productivity at home, on the road, at the office, or in the classroom.

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Dave Jansen

Good Gear Guide
Show Comments

Cool Tech

Crucial Ballistix Elite 32GB Kit (4 x 8GB) DDR4-3000 UDIMM

Learn more >

Gadgets & Things

Lexar® Professional 1000x microSDHC™/microSDXC™ UHS-II cards

Learn more >

Family Friendly

Lexar® JumpDrive® S57 USB 3.0 flash drive 

Learn more >

Stocking Stuffer

Plox Star Wars Death Star Levitating Bluetooth Speaker

Learn more >

Christmas Gift Guide

Click for more ›

Most Popular Reviews

Latest News Articles


GGG Evaluation Team

Kathy Cassidy


First impression on unpacking the Q702 test unit was the solid feel and clean, minimalist styling.

Anthony Grifoni


For work use, Microsoft Word and Excel programs pre-installed on the device are adequate for preparing short documents.

Steph Mundell


The Fujitsu LifeBook UH574 allowed for great mobility without being obnoxiously heavy or clunky. Its twelve hours of battery life did not disappoint.

Andrew Mitsi


The screen was particularly good. It is bright and visible from most angles, however heat is an issue, particularly around the Windows button on the front, and on the back where the battery housing is located.

Simon Harriott


My first impression after unboxing the Q702 is that it is a nice looking unit. Styling is somewhat minimalist but very effective. The tablet part, once detached, has a nice weight, and no buttons or switches are located in awkward or intrusive positions.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?