A friend has asked if there are studios using a slide projected to a white
piece of backdrop for photography? I remember some years ago
some wedding studios find this kind of backdrop with images from
slides popular. Wonder if it is still available today (the white background
cloth material and the projector for projecting the slide?)

If still available where is the place to get them?

If a previous thread has been started on this, kindly let me have the
link and many thanks once again for reading.