Why Projector Offset Matters

The offset for a golf simulation projector is different than other applications like classrooms and meeting rooms.  For a ceiling mounted projector, a small amount of offset enables you to mount the projector closer to the ceiling (and away from danger) and fill the impact screen to the floor.  This is typically between 100% and 110% depending on the throw ratio of the projector.

Yes. If you want to use a typical meeting room projector with a high offset (115% or higher) for golf simulation – the high offset may require you to have a taller ceiling to keep from having to tilt the projector up to keep the image shining on the floor below your impact screen.  

Figure 2- Too much projector offset will require you to either have a taller ceiling or tilt the projector up to fill the screen.

Whenever you tilt a projector, it will change the shape of the original square or rectangular image into a trapezoid. Since this won’t align with the screen, it will need to be resolved by either adjusting the mount – or using digital tools such as vertical keystone.

Figure 3- Tilting the projector turns a square or rectangular image into a trapezoid that needs to be corrected.

You can use keystone correction to adjust the image to fit properly on your screen, but this causes some loss of brightness and resolution.  The reason for the issue is that to fit the trapezoidal image into a neat rectangle, the corrected side's pixels have to squeeze into a smaller image. That reduction can cause a dip in quality and brightness. So if you want to fill up your screen with a shrink image, you have to move back the projector. However, projector distance can influence the uniformity of brightness across the screen; the greater the throw distance, the less bright the image will be.

While offset is not often listed as a major spec or consideration, BenQ golf simulator projectors are unique with their offset, which are enough to help the image correctly reach the floor and minimize the need for tilting the projector while avoiding casting shadows. The two most popular offsets are 100%, where the top of the image is at the same level as the projector (BenQ LW600ST & LH600ST), and 110% for shorter throw projectors such as the LH820ST. 

BenQ has trained staff to help you find the perfect golf simulator projector – within your room size and budget. To help you make the best decision, you can reach out to one of our experts to set up anything from a chat to a complete online demo, to help you find the right projector for your needs.