To calculate the slide distance from the projector lens, you will need to use the formula: Distance = (Screen Width x Projector Distance) / Image Width. This will give you the distance from the lens to the slide.
The image dimensions on the screen can be calculated by using the formula: Image Width = (Distance x Image Width) / Projector Distance. This will give you the size of the image on the screen.
The recommended distance between the projector and the screen will depend on the type of projector and the size of the screen. It is generally recommended to have a distance of at least 1.5 times the width of the screen.
To adjust the image size on the screen, you can either move the projector closer or further away from the screen, or you can use the zoom function on the projector if it has one. You can also adjust the image size by changing the aspect ratio on the projector settings.
Yes, this calculation can be used for any projector and screen size as long as you have the necessary measurements. However, it is always best to consult the manufacturer's specifications for your specific projector and screen to ensure optimal image quality.