It is a dynamic contrast figure: the projector dims its light source during dark scenes and reports the ratio between the brightest possible white and the darkest possible black across different frames — never within one image.
The two figures, and why only one is comparable
Native contrast is measured on a single frame: white and black in the same image. Dynamic contrast allows the machine to change its light output between measurements, which is why the number can be arbitrarily large. Both are legitimate measurements of different things, and only the first describes what a picture looks like.
What dynamic contrast does in practice
It works, within limits. An iris or a laser dimming during a dark scene genuinely deepens the black. What it cannot do is produce a bright highlight and a deep black at the same moment, which is exactly the situation — a lamp in a night scene — where contrast is visible.
The number that is not published
Most makers publish only the dynamic figure. Where a native contrast ratio is not published, these pages say it is not published rather than repeating the dynamic figure as though it described an image.
What actually raises black level in your room
Light. A white ceiling reflecting the image back onto the screen will destroy more contrast than the difference between two projectors, and it is free to fix with a darker wall behind the seating.
This does not replace the manufacturer's own instructions. Every brightness figure, contrast ratio, power rating and load capacity on this page is reported from the manufacturer's own documentation, with its unit written as published, and named as such — none of it is measured here. A brightness figure that is not expressed in ANSI or ISO lumens is reported as the manufacturer expressed it and is never converted, because no conversion exists.
Questions people actually ask
What is a good native contrast figure?
It depends on the technology, and the honest answer is that makers who publish native contrast are the ones worth comparing. DLP and LCD projectors in the home cinema range typically publish native figures in the hundreds to low thousands to one, while the dynamic figures printed alongside them run into the millions.
Does contrast matter more than brightness?
In a dark room, usually yes: contrast is what makes a night scene look like night rather than dark grey. In a room with ambient light, brightness and the screen matter more, because stray light raises the black level of the image before the projector has any say in it.
Last reviewed 4 September 2026