Here are some recommendations when estimating throw distance:
When using a fixed lens (throw ratio): Use a single calculation for a given combination of projector and non-zoom lens.
When using a lens that has a zoom feature: Use two throw ratio calculations that provide the range from closest distance (minimum) to farthest distance (maximum) for a given combination of projector and zoom lens.
Watch the Video: Estimating Throw Distance
For a better understanding of how to find the most accurate throw distance for your projection, click here (1 min) to watch the video lecture.
