The ET-D75LE20 1.70–2.40:1 lens is a standard projection lens with a throw ratio of 1.7–2.4:1.
This lens is designed for use with Panasonic 3-chip DLP projectors.
SCREEN ASPECT RATIO
The aspect ratio describes the relationship between the width and the height of an image.
IMAGE RESOLUTION
The number of image points (pixels) forming the width and height of an image, e.g. 1920 × 1080.
With a 4:3 Aspect Ratio
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