For starters, ensure that the content you're viewing matches your projector's resolution. Naturally, 4K content on a 4K projector will appear extremely sharp and detailed. Proper focus is key to a clear image.
Keystone adjustment lowers the resolution of the image since you're no longer using the entire image-creating chip or chips, and it also introduces a new layer of video processing that can add artifacts, further reducing quality.
Adjusting brightness and contrast can significantly enhance image quality. Properly managing these settings can lead to a vibrant picture, allowing for a more immersive viewing experience.
If your projector doesn't have autofocus, use the focus wheel to make the center of the screen as sharp as possible. Aim for a sharp image from corner to corner.
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