This used to be advanced stuff for a venue to have now it’s pretty much standard.
Even with small ballrooms in hotels, most have some type of Video projector capabilities.
Let’s talk about how to feed that projector with video that enhances your show.
What would you use the video for? Common uses by performing artists are
  1. Live camera feeds
  2. Pre-show video to set the tone before hitting the stage
  3. Slides or still pictures
  4. Background logos or looping video backdrop
  5. main types of connections used in today’s projectors.
Let’s look at how you can get tapped into that projector.
Here they are beginning with the most popular






Let’s talk about each of their properties

HDMI supports HD video and can carry audio signal too
The resolution is up to 1080 x 1920
VGA this is old school but still very prevalent
The resolution is up to 800 x 600
STI this is not a consumer connection and is reserved for broadcast and pro usage.
The resolution can go up to 4k
DVI this is a good quality but got surpassed by HDMI which came out just couple years after DVI
resolution is also 1080 x 1920
Composite– still seen on projectors. Not a great option and best used as a last option backup
resolution 640 x 480
It’s handy to know your projector’s resolution but you can also tell just by the ports that are on
the unit. If it only has composite and VGA ports it’s likely it will only support up to 600×800 (VGA resolution)


If there is more than one hook-up on the back of the projector (I haven’t seen one that doesn’t have multiples) then once hooked in you’ll have to manually select the projector’s input so it knows where to look for your incoming video on which channel. You select this via the projector’s remote
or sometimes it’s on the actual unit too. All projectors are different so you may need to look up the model’s manual online if you are stuck on how to change which input the projector is reading. It’s similar to a home TV though so it’s fairly intuitive. So let’s say you have and HDMI cable hooked from a laptop to your projector. just select HDMI on the projector and you should be getting an image. One added thing is, some projectors have auto-connect where it detects a video signal coming into one of its inputs (say VGA) it will then automatically select that input channel for your video feed, nice feature when it works.
On the projector setting resolution is also an important setting. It will set the default resolution to whatever the native resolution is for the port you are using. For example if you are using VGA it will set
the projector to 600 x 800, which is VGA’s native and max resolution. you can’t really raise it as the cable you are using is designed only to handle up to a certain resolution. You can lower the resolution
either on your computer or the projector but you can’t raise it past the capabilities of the cable you are using.
Throw distance is something you have to think about when using a projector. The further set back 
from the screen a projector is the larger the image or projection will be. Conversely the closer the projector is to the screen the smaller the image or projection. There’s a feature in some projectors called short throw. this is where even when a projector is relatively close to the screen it does a good job of spreading or throwing the image wide to cover a surface or screen while keeping the projector close like say downstage.
You also have minor adjustment features on the projector like zoom, keystoning, focus and lense shifting. These are helpful to fine tune your image once it is being projected on-screen. 
First and foremost you should focus your image if the projector has that capability.
Focus is often on the proctor on the physical ring surrounding the lens. Adjust this
lens left or right to get the image clear and in focus.
Zoom, there is digital zoom and optical, if you have a cell phone that takes pictures you realized that digital zoom degrades or pixilates the image is ideal as it doesn’t degrade the image when used. 
Zoom is used to get the image big enough or small enough to fit on the screen