Rear Projection: A Cinematic Technique
Rear projection is a cinematic technique used in film production for combining foreground performances with pre-filmed backgrounds. It’s one of many in-camera effects that have been widely used for many years, especially in driving scenes or to show other forms of “distant” background motion.Get more news about best price rear projection,you can vist our website!

Technique
In rear projection, actors stand in front of a screen while a projector positioned behind the screen casts a reversed image of the background. This requires a large space, as the projector needs to be placed some distance from the back of the screen. The image that is projected can be still or moving, but is always called the plate.

Challenges
A major problem with rear projection use was that the image projected on the screen was always slightly less crisp than the action in front of it, an effect which was especially noticeable in sequences where footage with rear projection alternates with non-projection shots.

Advances
A major advance over rear projection is front projection, which uses a special screen material to allow the plate to be projected from the front of the screen. This results in a much sharper and more saturated image.

Conclusion
Despite the challenges, rear projection has been a valuable tool in the film industry. As technology advances, we can expect to see even more innovative uses of this technique in the future.